Requirements for Bulk Mobile Process Units

Mobile Process Unit (MPU) delivers and manufactures bulk explosives directly into the borehole. Because loading boreholes mechanically with a bulk explosive is defined as a manufacturing operation, it must be done in accordance with an explosives certificate or licence approved by an inspector.

This document details the construction of MPUs, approval for licensing and incorporation of the MPU into the factory licence (or ANFO Certificate).

This document does not apply to underground loading and underground processes.

“Must” and “will” denote a mandatory requirement. Whenever “should” or “may” appear, companies have the option of following or not following such directives, but must be prepared to defend their decision.

1.2 Intent

ERD has a primary goal of the safety of the public, operators, equipment and the environment.

These guidelines were developed in conjunction with industry, and companies are expected to follow them. Although they are based on explosives and TDG Regulations, they have also been developed as a result of incidents and accidents to make MPU as safe as practical. Revisions will be made from time to time and alternatives to these requirements may be considered by the Chief Inspector of Explosives

A secondary goal of this document is to reduce paperwork and streamline the use of MPUs. As described in this document MPUs are pre-approved on a Form 4. This can quickly be attached to an explosives factory licence Form 4 or moved to another licence when the MPUs move from site to site to meet demand.

1.3 Other Documents

Although these guidelines set out the minimum requirements for a Mobile Process Units, they are not a compilation of all legislation or codes issued by federal, provincial and municipal governments to which companies are subject. The following is presented as a guide to other documents or jurisdictions that must be considered and is not meant to be exhaustive:

Explosives Act and Regulations
Documents issued by and obtainable from the Explosives Regulatory Division (ERD):
- Guidelines for the Pumping of Water-Based Explosives (Pumping Guidelines)
- Guidelines for Bulk Explosive Facilities
- Quantity-distance principles
- ERD Bulletins, issued as required
Transport Canada (TC) reference documents
- Canadian General Standards Board, CAN/CGSB¬43.151-97, "Packaging of Explosives (Class 1) for Transportation", under EP 17.( currently under revision)
- Canadian Standards Association (CSA) B620-09 or latest version
- Canadian Standards Association (CSA) B621-98
Canadian Motor Vehicle Safety Standards (CMVSS)
Transportation of Dangerous Goods Act and Regulations
Provincial transport regulations
Provincial labor and/or safety laws and regulations
Municipal by-laws and ordinances

1.4 Using the Guidelines

Companies should become familiar with the contents of these guidelines. Approvals of MPUs will be based on these guidelines.

Applications and their approval can be broken down into three elements:

ERD requirements,
Transport Canada coded vessels requirements
Transport Canada CVMSS requirements.

Note: An approved Form 4 for a Mobile Process Unit only means that the specified MPU is authorized to be used as part of an explosives factory licence or an explosives certificate. In no instance is the MPU Form 4 a stand-alone licence.

2. SCOPE, LIMITATIONS, DEFINITIONS AND GENERAL BACKGROUND

2.1 Scope

Mobile Process Unit for explosives is subject to all existing regulations and codes. These guidelines do not supersede any regulation or law, be it federal, provincial/territorial or municipal, or any codes specified in such legislation. Where alternative requirements exist, the more stringent of the two will apply.

Only 1.5D explosives may be transported and delivered by Mobile Process Units. These are UN0331, ANFO and UN0332, Emulsions and watergels. Companies must make sure that the products loaded by MPUs do not become cap sensitive (1.1D) before they are pumped into the borehole.

This guideline is for bulk explosives MPUs that are located on the surface (i.e., not under ground). Underground equipment is subject to a number of different requirements.

2.2 General

Transporting and manufacturing explosives with a MPU can be hazardous and should be undertaken with due attention to truck design, tank design, pump design, etc.

Careful attention needs to be taken to select the proper chassis for the MPU to provide sufficient robustness, stability, safety for the intended purpose and so that it can be built to meet B620 & CMVSS standards.

Augers, pneumatic hoses, pumps and their safety devices need to be carefully selected for the intended job.

All new MPUs must at least comply with these minimum requirements. There are situations where existing MPUs met the requirements when they were first licensed, but not the current requirements. Some of these situations have been allowed to continue and as such have been grandfathered (refer to section 8 – Grandfathered Equipment).

The Form 4 submitted for approval will become part of an explosives licence. If this information is not correct, then the licence is invalid and it is no longer legal to operate.

2.3 Definitions and Limitations

These definitions complement those in the Explosives Act and Regulations. In case of conflict, the definitions in the Act and Regulations prevail. This section also describes limitations imposed on some of the choices.

2.3.1 Mobile Process Unit

“Mobile Process Unit” means a vehicle in which an explosives manufacturing operation is carried out, or a portable machine used to carry out an explosives manufacturing operation, at a factory, satellite site or client site.

MPVs may be seen as mobile factories, subject to limitations as required, to ensure public and worker safety. In this document, the term “mobile process unit” includes portable process units which may not necessarily be wheel-mounted. In the case of wheel-mounted units, some requirements for trucks (e.g., exhaust system protection) may not be applicable.

MPUs must be associated with a factory licence or ANFO certificate to ensure that the intent (section 1.2) is met.

Note: A portable mobile process vehicle (PPU) is an arrangement of equipment (a machine) that can be moved from place to place and with which explosives may be made into a borehole. One example would be an emulsion unit mounted on a skid.

ANFO Pneumatic Delivery Systems

Pneumatic delivery systems used for cartridged explosives and those used for ANFO, with a carrying capacity of less than 100 kg, such as blast hole chargers and ANOLOADERS, are not subject to these guidelines.

2.3.2 SME and SMS Mobile Process Units.

An SME (Site Mixed Emulsion) and SMS (Site Mixing System) PV are carrying just the raw ingredients needed to mix and manufacture emulsions at the borehole.

These MPU’s are manufacturing explosives at the bench directly into the loading hose from raw materials that have no explosive properties. The NEQ of these vehicles is very small when travelling or loading, typically less than 25 kg.

3. PROPER UNIT SELECTION

3.1 Mobile Process Unit & Chassis Selection

When the time comes to select the proper chassis for a MPU, it is important to buy a chassis that can carry all the process equipment and still meet CMVSS and other Transport Canada requirements. Only when the process and the manufacturer of the process equipment have been carefully chosen will it be possible to specify the chassis, usually in conjunction with the process equipment manufacturer. Failure to buy the correct chassis may make it impossible for the vehicle to be authorized.

3.2 Requirements, Transport Canada, ERD & CMVSS

* ERD requires all new vehicles to meet all appropriate aspects of the CMVSS and B620 tank requirements, whether on public or closed sites.

* MPUs must meet federal and provincial requirements. Provincial workplace safety requirements cover user safety, including ladders and guardrails, guards on rotating equipment, and pinch points.

*Canadian Motor Vehicle Safety Standards cover the running gear of the vehicle, including brakes, tires, general roadworthiness, and daily vehicle checks.

All large means of containment on MPUs are expected to meet TDG standards for construction and placarding, even on closed and gated sites where TDG may not apply. Vehicles built before the current standards came into force (July 1999) may be grandfathered and may still operate under restrictive conditions (refer to section 8 – Grandfathered Equipment regarding non-coded large means of containment).

Vehicles must meet the description submitted with the authorization application and the one identified on the location list. Vehicles that do not comply with the authorization description, have significant faults when inspected, are mechanically unfit, or lack the required paper work may have to be removed from service until accurate supporting documentation is supplied or information is provided that shows the required repairs have been made.

MPUs must be clearly marked with the company name and unit number.

4. DOCUMENTATION

4.1 Approval/authorization and Licensing of a MPU

(All of the following applies to new MPUs. Older MPUs and modifications to MPUs are dealt with in section 8.)

4.1.1 General

New MPUs and changes to existing MPUs need to be authorized by ERD before the equipment can operate under a factory licence or certificate. Guidelines for authorization of MPUs are in section 6 of this document.

MPUs include not only explosives trucks but also most other mobile explosives borehole loading devices, whether mounted on trucks, trailers or skids, with a hopper capacity of over 100 kg. However, underground equipment is not subject to this approval process, and therefore is not usually submitted to ERD.

4.1.2 Applications

Applicants must submit individual applications for each MPU. Applications consist of duplicate originals of all Form 4, photos and drawings as detailed at the start of section 6.

4.1.3 Approval/authorization

ERD will issue an individual authorization number and ERD file number for each MPU following review and approval of the application information. One copy of the approved application will be retained and the other approved copy returned to applicant for his records.

A copy of the approved authorization must be carried on the MPU unless prior special arrangements have been made.

After authorization all correspondence regarding a MPU must reference its authorization number.

4.1.4 Documents required for approval/authorization

Form 4
incomplete vehicle document from the original manufacturer
final stage letter
third party as-built review
if a new tank design, then the third party design review
coded tank certificates
centre of gravity calculations
engineered drawings
CVMSS compliance label

4.1.5 Incorporating a MPU into an explosive licence

All MPUs must be submitted to ERD for approval using a Form 4 as detailed in section 6. This Form 4 will become part of the site licence for the site from which the vehicle is operating.

The MPU Form 4 can be incorporated into the site explosives licence in two ways.

All the MPUs attached to the site can be listed using their ERD approval numbers and the company’s MPU unit number on the site licence form 4. All the information from the approved MPU Form 4’s does not have to be transferred to site licence.
All the MPUs can be listed on a location list (See Appendix A for an example of a location list), and the site licence can state that the MPUs on the site are as detailed on the location list. The maximum number of MPUs located at a base factory must be indicated on the licence, and fees will be charged based on maximum number of MPUs licensed during the term of that licence.

The reason for using a location list is so that licences do not need to be amended every time a MPU is moved. A condition of being allowed to use a location list is that the list is updated within two working days of a MPU leaving or being brought to a licensed site. When a MPU operates at a satellite site supported by a base factory, the MPU must be recorded on the base factory licence either directly or by the location list. Copies of the MPU form 4’s must be available at the site where they are based and on the vehicles themselves.

Licensees are required to submit a MPU location list to record equipment locations and information as outlined in the sample MPU location list attached (a MPU location list must have signature, date, revision number and specify applicable ERD file number).

Each time a MPU changes its base factory location, an updated location list must be sent to ERD headquarters within 2 working day of the change with the change marked. Where moving the MPU changes the operation, types or quantities of explosives at a site, or adversely affects Q/D principles beyond what is included in the site licence, that licence will still have to be amended.

Updated lists must also be available at each operating location as part of the licence.

4.1.6 Authorized operations and processes

Please refer to ERD Form 6R of your factory licence provides more details on the use of MPU and what other operations are allowed nearby during borehole loading.

5. PVS AND THEIR EQUIPMENT

5.1 Chassis

5.1.1 Chassis requirements for MPU restricted to closed sites

If the MPU is restricted to a closed site, it must comply with all the same chassis requirements as a MPU which is roadworthy, with the exception of the following:

- it does not need to comply with all public roads safety requirements as long as a certified mechanic signs off on the MPU as being able to perform its work safely, (e.g.: tires, lights, etc.)

- MPU’s based upon off road chassis must be certified by an engineer. The vehicle must respect the manufacturer’s specifications as to the center of gravity and braking capacity. Thereafter, a certified mechanic must sign off the vehicle on an annual basis ensuring that the MPU is mechanically fit to perform its work safely. Contact ERD.

5.1.2 Fire suppression system

Fire extinguishers are always expected to meet NFPA codes and standards. A minimum of two fire extinguishers of at least 4-A:40-B,C rating must be present on explosives vehicles. In addition, MPUs are also required to have an engineered fire suppression system for the engine compartment.

Transport Canada and provincial/territorial requirements must also be met.

If aluminum is to be used, a fire extinguisher compatible with aluminum should be present.

Fire extinguishers must be inspected on a monthly basis and records of inspection must be kept.

As well, engineered fire suppression systems must be inspected every 6 months (or sooner if required by other jurisdiction). These systems must be inspected by a qualified and approved facility or person (ref.: NFPA 17, Chap. 11).

5.1.3 Exhaust

The exhaust must extend vertically above the vehicle behind the cab and be protected with a heat shield from the box, body, hoppers and tanks. Horizontal portions of exhaust pipes must be positioned so that no explosives storage or explosives handling components are above them. Horizontal portions of exhaust pipes exposed to drips of hydraulic fluid, oil or emulsion must be shielded.

5.1.3.1 After-treatment devices

Environment Canada’s Canadian Environmental Protection Act (CEPA 1999), effective March 31, 2000 included new authorities to regulate emissions from a range of on- and off-road vehicles and engines. Its purpose is to mitigate adverse environmental and health impacts by reducing or controlling air pollutants such as carbon monoxide (CO), particulate matter (PM), hydrocarbons (HCs), nitrogen oxides (NOx) and other pollutants.

The introduction of the 2007 model year requires emission control systems to be installed on all heavy-duty vehicle engines. Exhaust emission systems and their locations are not design-restrictive, i.e., each manufacturer is responsible for the design, selection and installation of their systems on all new vehicles they produce, in order to comply with the prescribed emissions standards. ERD is interested in these because the piping configurations and the extreme temperatures they reach during the regenerative process could pose a potential fire hazard to the explosives carried on board.

There are typically four vehicle mounting configurations available for after-treatment devices (ATDs) used by the original equipment manufacturers (OEMs). Two of these would extend well behind the truck cab – see figure 1 & 2. The location of these ATD systems would be under or beside any process equipment, thus posing a potential fire risk or worse, as a result of spills of emulsion or process diesel fuel or when in close proximity to rubber hose reels. Such configurations contravene Schedule III and the intent of sections 65(h) and 63(n) of the Explosives Regulations, as well as former Form 6. In keeping with the Regulations and the current policy regarding the exercise of due caution where explosives may be exposed to extreme heat, it essentially limits the options available to explosives manufacturers when specifying/purchasing a new chassis.

The only vehicle exhaust configurations permitted without reconfiguring the process equipment on a single chassis are:

Under step mounted, horizontal after-treatment device (ATD) with a pillar mounted vertical tailpipe behind the cab – see Figure 3.
Outboard frame, vertical mounted after-treatment device (ATD) with a top stack, all mounted directly behind the cab – see Figure 4.

If either of the other two configurations extending behind the cab is installed by the OEM, i.e.,

inboard frame mounted horizontal after-treatment device with horizontal tailpipe – see Figure 1, or
inboard frame mounted horizontal ATD with pillar mounted vertical tailpipe routed under the frame – see Figure 2,

then the process equipment must be set back farther on the chassis frame rail so that all of it is aft of the ATD system, or the process equipment must be reconfigured so that no portion is located in, under, beside or over the ATD system, i.e., vertical clearance must be maintained for the full height of the process equipment located directly above the ATD. In the presence of explosives, a minimum clearance of 30 cm (12 inches) in all directions is highly recommended for all options above.

Note: Each OEM stresses the need to maintain adequate clearances from wood, rubber, cloth, electrical wiring, brake hoses and tubing due to the high temperatures – this is also emphasized in the Regulations.

With the advent of these new system configurations, an additional minimum requirement will be to install a portable fire extinguisher in close proximity to the ATD so as to be readily available to an operator in the event of a problem. A metal shield between the ATD and the power take-off (PTO), hydraulic pump and associated hydraulic hoses is strongly encouraged to prevent hydraulic fluid from spraying onto the ATD at any time if a hose delaminates. Additionally, it is highly recommended to locate and direct at least one nozzle of an after-market engineered fire suppression system in the area of the ATD and PTO to suppress a potential fire. Such precautions may ultimately save a very valuable piece of equipment.

5.1.4 Tires

If the MPU is used on public roads, the tires must meet provincial department of transport safety requirements and the current CMVSS.

The combined tire load ratings must exceed the GVWR of the vehicle.

If the MPU is only used on closed sites, a certified mechanic must sign off, as part of the annual inspection, stating that the tires are safe. Ref.: Explosives Regulation, section 63 (f) (vi)

5.1.5 Engine fuel tanks and lines

Fuel tanks must meet CMVSS. Fuel outlets below the fuel level must be fitted with an accessible shut-off valves or devices. Shut-off valves should be labeled.

Transfer lines between dual tanks must have a shut off valve at each tank.

5.1.6 Electrical

The battery must be enclosed in a battery box.To isolate the battery, an easily accessible manual battery disconnect switch, a manual reset breaker or a factory installed battery isolation devices, labelled and located close to the battery, must be provided. The switch or breaker should be located on the positive line. The switch must be rated for the current it will handle.

Note: The factory installed battery isolation device must meet the same intents as the manual devices, i.e. isolate the battery when the MPU is not in used, and disconnect the battery in an incident/accident situation.

Where possible the switch should be located conveniently on the driver side of the vehicle. The switch should be no more than 30 cm from the positive battery terminal and the line to the switch must be protected from rubbing and abrasion that could cause a short circuit.

If it is necessary to keep the truck’s engine management system or part of the control system energized most of the time, the battery cut-off switch may be bypassed by a circuit protected by a low amperage fuse. This must be indicated on the Form 4 application.

5.1.6.1 Wiring

All wiring must conform to the Canadian Electrical Code.

MPU wiring behind the cab must be in conduit extending into all fittings and junctions. TECK90 XLPE or ACWU90 cable is an acceptable alternative to conduit. Where conduit or cable enters lights, motors, electrical equipment or junction boxes, the wire entries must be sealed and entry fittings designed for the purpose must be used.

Note: The entry must be liquid-tight and protect the wires from rubbing damage and the connection from strain.

All wiring must be protected by bushings and supports if mechanical damage is likely when it passes through bulkheads or is close to sharp edges.

All wiring must have overcurrent protection.

Notwithstanding the above, wiring connected to ABS braking systems or other motor vehicle control systems originally installed by the truck chassis manufacturer may be left as installed.

5.1.6.2 Wiring exempted from conduit requirements

Class 2 circuits are permitted for very low amperage wiring such as is often used for control circuits.Class 2 circuits are limited voltage and current Class 2 circuits of 0-20 volts must be limited to less than 5 amps. They present no electrical shock hazard and no significant fire hazard. There are rules governing overcurrent protection, conductors and separation from other circuits. These circuits are usually suitable for instrumentation and control. On MPUs, these circuits could be used for solenoid valves, as well as sensors and transducers. Generally those circuits are not suitable for lighting. Overcurrent protection of different ratings must not be of an interchangeable type.

MPUs with Class 2 circuits meeting the requirements of Class 2 circuits in section 16 of the Canadian Electrical Code are acceptable on MPUs and do not need to meet the above requirements for conduit and cable entry into fittings.

5.1.6.3 Junction boxes

All exterior electrical boxes must be EEMAC/NEMA 4X with sealed wire entries.

5.1.7 Brakes and steering

Brakes and steering apparatus must be in good mechanical condition and meet Transport Canada and provincial requirements. Brakes must meet provincial department of transport safety requirements and the current CMVSS for service, parking and emergency brakes as per CMVSS 121.

5.1.8 Placarding and markings

Placarding and marking of means of containment must conform to the TDG Regulations even when the vehicle is on a closed site where TDG Regulations may not apply. This includes B620 tank marking as well as safety marks on large and small means of containment.

5.2 Process Bins & Tanks

5.2.1 Small and large means of containment

A small means of containment (capacity of 450 L or less) shall be designed, constructed, filled, closed, secured and maintained so that under normal conditions of transport, including handling, there will be no accidental release of the dangerous goods that could endanger public safety.

All sight glass material (on small means of containment only) should be a strong, resilient (non-brittle) material. There should be a shut-off valve at both ends of the sight glass that must be closed while the operator is in transport. The operator must make sure that the shut-off valves are to be closed while in transport. Sturdy guards must protect the sight glass on three sides. The container itself may constitute one or more of the guards. A sturdy guard must be installed on the visible side of the sight glass. Expanded metal is an example of such sturdy material.

Engineering best practice should be followed to provide physical protection and shut off valves in order to eliminate any chance of a spill and environmental concerns in the event of an accident or rollover. This applies to all process tanks that may contain product that might create an environmental concern if there is any loss of product.

A large means of containment has a capacity greater than 450 litres. Tanks over 450 L for dangerous goods must be constructed to B620 specifications and marked as such. No sight glasses are allowed on large means of containment.

5.2.1.1 Padlocks for explosives tanks and AN tanks

Padlocks for explosives tanks should have most of the same features to guard against forced entry as those listed in Appendix B of ERD’s “Storage Standards for Industrial Explosives”.

5.2.2 Process fuel oil tank

The process fuel oil tank must be of metal construction, have a non-spill air vent with filter, a fusible fill cap, and shut-off valves at all outlets. Large means of containment for process fuel must be built to TC/DOT 406 standards. Sight glasses for level indication are not allowed on TC406 tanks.

TDG Regulations state that the containers must be selected and used in accordance with standard CAN/CSA B621, Selection and Use of Highway Tanks, Portable Tanks, Cargo Compartments and Containers for the Transportation of Dangerous Goods, Classes 3, 4, 5, 6.1, 8 and 9. This standard prescribes that diesel tanks built after December 31, 2002, must conform to the TC 406 tank specification under CSA B620, or its CFR 49, DOT 406 equivalent, when permanently mounted on the frame of a truck or trailer.

ERD would require that it have a fuseable cap, shut-off valve on all piping, non-spill relief venting and there must be no sight glass on fuel tanks. Note: check sight glasses for small fuel tanks.

Annual inspections of TC406 tanks are required. See Appendix D & E.

5.2.2.1 Venting

Proper venting, sized for the volume of the process fuel tank, must be provided as per B620.

Safety vent: To prevent tank internal pressure from rupturing the tank body, seams or bottom opening if exposed to fire;

Air vent: Non-spill air vent (such as a ball check or spring release) that will ensure that, in a rollover situation, fuel is confined to the tank and will allow air in to prevent the tank from collapsing when the fuel is pumped out.

The air vent may be combined with the safety vent or be a separate item. Both mechanisms must be able to withstand the hydraulic pressure exerted from within during normal operation, as well as in a rollover situation.

5.2.3 Ammonium nitrate bin

AN bins should be stainless steel or aluminum where in contact with the product and should have one-inch stainless steel grating in the hatch openings. All hatches and any outlets from which AN could be collected must be lockable and must be locked when not attended or when on public roads. When on mine or quarry roads and attended, this is not required. The hatch design should prevent water ingress. All nuts used to assemble the bin should be tack-welded to the bin or locked to prevent them from coming loose.

5.2.4 Aluminum bin

The bin holding aluminum should be non-rusting and sealed against water. Stainless augers must be used for aluminized products.

5.2.5 Mobile process vehicle emulsion tank

ERD has adopted the July 2003 Canadian Standards Association (CSA) B620-03 reference document, entitled Highway Tanks and Portable Tanks for the Transportation of Dangerous Goods for non-pressurized tanks. Production vehicles used for the transport and mixing/pumping of emulsion or watergel/slurry must meet B620-03, TC 412 or TC423 requirements as referenced in CAN/CGSB-43.151‑97, Packing of Explosives (Class 1) for Transportation under explosives packing methods EP 17, Note 5 and be rated for 5 psi. This includes, but is not limited to, meeting the appropriate design and working pressures, plus venting and pressure relief, rollover and spill protection, in addition to guarding the discharge valve and providing a substantial bumper.

The emulsion tank should be stainless steel at the product contact surfaces. Where insulation is used, insulation requirement for TC423 in B620 is followed even for TC412 tanks. TC 423 requirements are listed below.

With insulation, the exterior of the tank will be covered by insulation, a vapor barrier, and a metal jacket. The vapor barrier protects the insulation from weather and spills. It must be smooth and flexible and have a flame spread rating of 25 or less.

Insulation is covered in B620; it must be compatible with the lading. It must be rigid and non-porous. It must be at least 2” thick and not separate from the tank, as separations would create spaces where product could be trapped.

It must meet at least one of these requirements:

It must be non-combustible in accordance with ASTM/ULC/CAN
It must have a fire endurance rating of at least 15 min.
It must have a flame spread rating of 25 or less.

In addition to complying with the requirements of B620-03 for all coded vessels, ERD will also ensure all vehicles, assembled or altered in multiple stages, conform to the applicable CMVSS that came into effect in February 2003. This Transport Canada (TC) requirement calls for appropriate lighting, demonstration of centre of gravity calculations, correct selection of chassis for GVWR and GAWR ratings concerning weight distribution, plus adequate braking for a fully loaded vehicle, to name a few of its provisions. It is part of the National Safety Mark (NSM) process administered by TC (reference www.tc.gc.ca) and applies to all intermediate and final-stage manufacturers who assemble or alter a vehicle prior to its sale to the first purchaser, whether imported to or originating in Canada.

Annual inspections of TC412 tanks are required. See Appendices D & E.

ERD requires that all MPUs based on truck chassis meet Transport Canada standards even if they are confined to closed private mine sites.

In addition, all shops that assemble or alter used process equipment or re-install it on a new chassis for their own use must demonstrate, as part of the authorization process, that the final assembly meets all applicable CMVSS. This latter requirement will require confirmation, in writing, by a professional engineer who is proficient in the required standards.

Note 1: When the integrity of the production tank is at risk and/or where the tank and chassis/trailer are assembled separately, ERD reserves the right to have the entire design reviewed by a third-party Transport Canada Authorized Design Agency to ensure compliance with either CFR 49, DOT 412 standards or B620-03, TC 412 standards, all at the licensee’s expense. The assembly shop must be registered with Transport Canada, with the reviewer considering the entire design package, not just the tank by itself, as required by B620-03. ERD further reserves the right to have the assembly inspected, at the licensee’s expense, by the third-party reviewer to ensure the package meets the applicable standards.

Note 2: Highway tanks used for the transport of emulsion/watergel/slurries only are addressed separately in CAN/CGSB-43.151‑97, EP 17.

Note 3: When CAN/CGSB-43.151-97 is revised TC423 tanks maybe required on new vehicles instead of TC412. Current TC 412 designs for explosives could be registered as TC423’s with no changes.

5.2.5.1 Mobile Process Units based on IBCs

Several companies operate MPUs which pump emulsion into boreholes from IBCs (intermediate bulk containers). For loading where Q/D is a problem these small vehicles can be very useful. The design should be discussed with ERD before construction but must meet these requirements.

IBCs must meet CAN/CGSB-43.151-97 Packing of Explosives (Class 1) for Transportation. These are Code 31 IBCs and require periodic testing at a registered facility. Details of testing and design may be found in CAN/CGSB-43.146. They may be up to 3000 litres in capacity.

No more than 4 IBCs may be transported on a MPU. (Often several will be transported on the vehicle, unloaded at a licensed transfer site close to the loading area, with one left on the vehicle for loading holes so that the NEQ on the vehicle is as small as possible).

Only one IBC can be on the vehicle during borehole loading.

The IBCs must be properly fixed to the vehicle, i.e., not strapped but bolted or clamped with properly engineered fixings).

The IBC lid and valve must be locked when not being filled or emptied unless decontaminated.

5.2.5.2 Hatch on emulsion tank

All hatches, discharge valves and outlets must be lockable and must be locked when containing explosives and not attended or when on public roads. When on mine or quarry roads and attended, this is not required. They should be in a sufficient number for tank cleaning. There should be an one-inch wire mesh basket in the opening and adequate drainage around the hatch.

5.2.6 Gassing solution tank

The gassing solution tank must be made of material compatible with the solution. Proper pressure relief must be fitted if required. Hosing is not to be used as relief. If containing dangerous goods it should be marked according to TDG Regulations and requirements for small or large means of containment must be met.

5.3 Delivery Equipment

5.3.1 Pumps

Pumps (make, model and safety devices) used for pumping explosives or AN liquor must be approved by ERD. Companies should abide by the recommendations of the Pumping Guidelines (a copy of the guidelines may be obtained from ERD). A hazard review and/or testing of the pump explosives combination may be required prior to pump approval. Each progressive cavity pump must have its own log of all maintenance and other work done on it, and a log is recommended for other pumps.

Records may be requested during inspections by ERD or prior to the issuing of the licence. Pumps and process units that do not have available up-to-date logs or records must be removed from service until either the required preventive maintenance has been performed or the required records are available.

If a progressive cavity pump is used, there should be two independent safety devices, one of them being a device detecting no-flow.

A testing program must be in place for all safety shut-down systems. A pump maintenance and testing program log must be available. Pumps for which the safety systems are found to be non-functional must be removed from service until corrected. Pumps may not be put into service until safety systems have been tested, and testing must be repeated on a regular basis.

Maintenance and/or repairs that require disassembly of progressive cavity pumps used to pump explosives must be carried out by qualified technicians.

5.3.1.1 Other emulsion or watergel pumps

Pumps other than progressive cavity pumps may require less instrumentation, but should be instrumented in accordance with their potential for self-heating when deadheaded or running dry. The exact nature of the instrumentation must be based on a hazard analysis and/or testing and/or the Pumping Guidelines. The “Guidelines for the Pumping of Water-based Explosives” is available from ERD for a nominal fee. They are also available electronically upon request from ERD.

5.3.2 Augers

Augers should have outboard bearings with stand-off spacing at the ends and have reverse flights or paddle sweepers to keep product from the auger seals. Augers should have stainless steel contact surfaces, sealed shafts to prevent build-up of explosives inside, and drive guard(s), including at the free ends of the bearings. Mild steel augers are not permitted if aluminum is present.

5.3.3 AN or ANFO blowers for pneumatic loading

The blower (make, model and capacity) for AN or ANFO transfer and its location in relation to the AN tank and fuel oil tank must be described on Form 4.

5.3.4 Delivery hose reel

There should be a drip tray under the delivery hose reel, a holder for the loose end of the delivery hose to catch product dripping from the hose, and a hydraulic counterbalance valve to prevent free-wheeling. It should have the appropriate safety guards attached.

5.3.5 Pneumatic hoses for delivery of ANFO

Pneumatic ANFO deliveries must be made using semi-conductive hose. The hose must have an electrical resistance high enough to limit the flow of stray current to safe levels, yet not so high as to prevent drainage of static electric charges to ground. A hose of not more than 2,000,000 Ω resistance over its entire length and of not less than 1000 Ω per foot meets the requirement. A system resistance between 10,000 Ω and 2,000,000 Ω is satisfactory and will still bleed off static, but slowly enough not to be hazardous. A too-conductive hose provides a low-resistance electrical path to the borehole for stray and galvanic currents. Wires placed in the hose, incorporated into the hose, or attached to it will dissipate static too quickly and the spark could initiate a detonator.

Note: Loading ANFO into a liner that is not static resistant may also lead to a build-up of a charge. This may occur when ANFO is poured into a hole from a bag, tote or auger. Take the appropriate precautions by grounding vehicles and loaders and using static-resistant conductive or dissipative liners. For more information refer to the ISEE Blasters Handbook, Chapter 18, Control of Static Electricity in Pneumatic Loading.

6. FILLING OUT FORM 4 FOR MOBILE PROCESS UNITS

When completing the Form 4, each section/subsection should be filled out using the same sequential order as is listed on the Form 4 guideline. Where a section does not apply, leave the section/subsection heading in place with “Not Applicable” written next to it.

6.1 Common Requirements for Most Explosives Mobile Process Units

6.1.1 Identification and general description

Unit number; licence plate number if applicable.
Number of ETP (Explosive Transport Permit) (ANFO MPUs carrying AN and fuel but no explosives or other vehicles carrying less than 2000 kg of explosives do not need an ETP). This comment will not longer be valid after the plain language provisions come into effect.
Make, model and year of chassis.
Serial number of chassis.
Gross Vehicle Weight Rating (GVWR), kg or lbs.
Type of process (e.g., ANFO, emulsion pump truck with gassing)
Type of products made or materials carried on the truck listed by the UN classification number and maximum effective explosives quantity for Q/D purposes.

6.1.2 Automotive

Is an annual mechanical fitness completed by a certified mechanic?
Is the exhaust extended vertically behind the cab and discharged above the vehicle production equipment and is it further protected with a heat shield so as not to cause burning, charring or damage to the electrical wiring, fuel system, ingredient hoppers, fuel tanks or any combustible part of the vehicle? Does the exhaust have an ATD (sec. 5.1.3.1)
Is there a protective shield between the under-chassis exhaust system and any hydraulic pumps in close proximity?
Are the vehicle chassis fuel tanks, other than on pick-up trucks, heavy duty UL approved?
If dual fuel tanks are fitted, the line between the two tanks must have shut off valves at each end. The shut-off valves must be accessible to the operator and secured against chaffing, kinks or other causes of mechanical damage.
Are the electrical wiring and lighting systems aft of the truck cab completely enclosed in sealed conduit or comprised of TECK 90 cable with connectors directly into the fixtures? If not, are the exceptions Class 2 circuits? Is all wiring adequately supported and bushed when passing through metal holes to minimize abrasion?
Are the battery circuits equipped with a well labeled manual disconnect switch, easily accessible to the operator, connected to the positive side of the battery and located within approximately 30 cm. (1 ft.) of the battery?

6.1.3 General safety and compliance

Is the vehicle equipped with fire extinguishers? Fire extinguishers are always expected to meet NFPA Codes and Standards. A minimum of two fire extinguishers of at least 4-A:40-B,C rating must be present on explosives vehicles. In addition, MPUs are also required to have an engineered fire suppression system for the engine compartment. All fire extinguishers must be tagged in accordance with Codes and Standards to demonstrate testing is current.

If aluminum is to be used, a fire extinguisher compatible with aluminum should be present.

Are applicable TDG safety placards on all four sides of vehicle?
Are there lockable hatch covers? Are the padlocks of good quality? (padlocks, not containing brass / bronze or copper)
No brass, bronze or copper permitted in contact with AN or explosives. Exposed brass, bronze or copper which is not in contact, such as in instrumentation or on extinguishers, is to be painted over.

6.2 Criteria for Specific Mobile Process Units

Form 4 requires here a brief description stating the location of the major components such as the bins, tanks etc. starting at the front of the vehicle and moving backward so as to give a fair representation of what is being submitted for approval.

MPU’s application for authorization must include the following photographs: Right side, left side, front, back, top and a picture of the tank specification plate. In addition, for a complex system, annotated photographs should be provided showing the pump safeties and a general arrangement drawing showing the equipment layout, a flow diagram illustrating process flow. Detail drawings, detail photographs and control diagrams may be included for unusual, complicated or more hazardous equipment. This will accompany the Form 4.

6.2.1 Ammonium nitrate and AN/FO bins or vessels

Note on the form:

The number of AN bins.
The total carrying capacity in tons or kilograms
The material used to make the AN bins, i.e., mild steel, stainless steel, aluminum. If mild steel, note the protective finish.

6.2.2 Pneumatic AN or ANFO transfer units

Vane (star) feed pneumatic systems feed the AN or ANFO through an airlock valve into the blow hose for loading the holes. An air blower is normally used instead of a compressor.

If an air lock/pneumatic feed system is used, describe the blower (make and capacity) for AN or ANFO transfer.
State the discharge hose size and confirm that it is semi-conductive. All flanged joints must maintain electrical continuity.

Semi-conductive hose must not have metal wire in its construction. It must have a resistance of at least 10,000 ohms and less than 2,000,000 ohms over its entire length, with a resistivity per foot of at least 1000 ohms. This hose will bleed off static slowly without giving a shock to the operator or more importantly to the detonator in the borehole. For more information refer to the ISEE Blasters Handbook, Chapter 18, “Control of Static Electricity in Pneumatic Loading”.

6.2.3 Other dangerous goods bin if applicable

state the capacity of the bin
Confirm that the bin is non-rusting and sealed against water.

6.2.4 Explosives tank

tank capacity
Construction material (product contact surfaces should be stainless steel unless grandfathered).
The standard that the tank meets.

Emulsion or slurry tanks built after July 1999 must meet TC (DOT) 412 requirements of CAN/CGSB-43.151-97, Packing of Explosives (Class 1) for Transportation under explosives packing method EP 17.

Where an RIBC is used, confirm that the design and use of the RIBC conforms to Appendix B of CAN/CGSB-43.151-97, Packaging of Explosives (Class 1) for Transportation as cited under EP 17, Note 6. Other units must be approved through both Transport Canada and ERD as having an equivalent level of safety.
tank serial number (for new tank)
manufacture’s design number, design drawing, file number for new tank and ERD design number
Third party designated agency (third party review) file number for new tank design and as-built review.

6.2.5 Process fuel oil tank

What is the tank capacity in gallons or litres?

If capacity is greater than 450 L, confirm that it is a TC406 coded tank and indicate the following:

Tank serial number (for new tank)
Manufacturer’s design number, design drawing and file number for new tank

For tanks under 450 liters:

Is non-spill and pressure release venting fitted to the process oil supply tank? Non-spill fusible tank caps minimize spills in a rollover situation and vent to prevent a pressure rise when exposed to fire.
Are there shut-off valves at all outlets?
Are manual or self-closing valves fitted on all sight gauge level indicators? Note that sight gauge level indicators are not permitted on TC406 tanks, and only permitted on small means of containment when very well protected against mechanical damage (and may not be allowed on fuel tanks).
Describe fuel pump and nozzle oil injection system.

6.2.6 Gassing solution tank

State the capacity of tank in gallons or litres.
Is construction plastic or stainless steel?
Is the tank non-spill with venting or, if a pressurized system, pressure relief type?

6.2.7 Other tanks

Note size.
State type of tank and materials contained.
Provide tank details.

6.2.8 Progressive cavity pumps

The use of pump safety features shall be guided by the “Guidelines for the Pumping of Water Based Explosives” to control out-of-limit conditions unless supported by a hazard review and/or test data which demonstrates otherwise. If instrumented, state what is included and the location around and/or in the pump.

State the make, type, size and reference number.
State the seal type and other pertinent features such as the number of stages of a progressive cavity (PC) pump, type of joint connectors if any or outboard bearings.
Pump safety systems. List all the safety features, including details of controls used, set points, bursting disk pressures, RPM limits, etc.
If a temperature sensor is used in the pump shutdown system, state how far it is from the end of the rotor. The optimum distance is 12 mm and it must be within 50 mm to function correctly.

Note: PC pumps are a known hazard and when full of explosives have been know to explode if run in a no-flow condition for long enough (more than ten minutes). The safety system must be designed to prevent this possibility.

Is there a pump control program? Note the test and maintenance schedule or how the pump is kept in a safe state.

6.2.9 Delivery Hose Reel

Give general details including reel and hose size.

6.2.10 Other Explosives Pumps

The use of pump safety features shall be guided by the “Guidelines for the Pumping Water Based Explosives” to control out-of-limit conditions unless supported by a hazard review and/or test data which demonstrates otherwise. If instrumented, state what is included and the location around and/or in the pump, as well as any downstream shearing or static mixing.

Give the make, type and reference number.
State the pump size and other pertinent features such as power source or motor type, outboard bearings, type of seals (mechanical, packing gland, etc.)
Pump Safety Devices. List any safety features, including details of controls used, set points, bursting disk pressures, RPM limits, etc. Reference hazard studies or other safety documents that demonstrate that the pump system will be safe as installed.
Note the location of any temperature, pressure or flow sensors plus any relief mechanisms, all in relation to the pump inlet and outlet as measured in cm or inches.
Is there a pump control program? Note the test and maintenance schedule or how the pump is kept in a safe state.

6.2.11 Augers

State size and construction materials.
Describe the auger location, i.e., overhead (installed at front or rear) or side discharge. Confirm that there is a minimum of 2.5 cm (1 inch) off-set for auger stub shaft bearings.

6.2.12 Controls

Electrical standards. Are the process controls in EEMAC 4 (CEMA 4) enclosures or better with sealed wire entries?
State the location of the controls, i.e., in the cab, on the fender, on the end of the auger, and whether hydraulic, electric over hydraulic (PLC in cab), actuated via hand-held push-button station, or via radio frequency (RF) remote control, etc.

Note: If pump operation is controlled remotely via RF, it must be demonstrated that the frequency will not initiate a detonator using IME #20 as a guideline and supported by a hazard review by a consultant qualified in the field.

6.2.13 Hydraulics

State the location of the hydraulic reservoir and any other significant details.

6.2.14 Other information

What other information is required to describe the truck?
Other equipment not on the MPU which is required to operate the system (such as portable pumps or dewatering equipment).

7. MODIFICATION TO A MPU

7.1 Re-chassis

A chassis remount and/or modification to a tank is covered in B620. If meeting the prescribed conditions, a remount can be done by a registered assembler of that particular tank. If there are modifications to the tank beyond the conditions set out in B620, then the work can only be done by a registered modifier of that tank. These actions may require the services of a professional engineer or a registered design engineer and the modifications may need to be submitted to a designated agency for review. Any modifications beyond the conditions set out in B620 will require inspection, testing and certification, as well as marking and adding a modification plate to the tank as called for in B620.

For the emulsion tank, to retain its TC412 designation the mounting to the new chassis must be reviewed by an engineer registered with Transport Canada for tank design. Details can be found in B620. ERD will require a copy of the revised design verification.

Unless modifications to the vehicle are extensive, it is unlikely that ERD will require a third party as-built inspection of the rebuilt vehicle.

7.2 Repairs after Accident

After any accident that involves TC 406 or TC 412 or TC423 tanks, a tank inspection will be required as per B620 before the tank can be returned to service.

Any repairs to a tank shall be made in compliance with its original design by a registered repair facility. Overlay tank patches are not permitted. It must be decontaminated and a sign-off document supplied to the repair facility.

8. GRANDFATHERED EQUIPMENT

Equipment built before July 1999 may have been grandfathered. Grandfathered equipment may still be used under the following conditions.

Non-spec emulsion tanks are confined to closed mine sites and not allowed off site unless decontaminated.
All non-spec dangerous goods tanks over 450 liters must be inspected annually as TC306 tanks (see Appendices D & E).
After a chassis replacement, all equipment must meet the standards in place for the year the chassis was manufactured. This restricts the replacement chassis to pre-July 1998 for non-spec emulsion tanks and pre-July 1999 for TC (MC, DOT) 306 tanks. It is the intention of ERD that non-spec tanks and 306 tanks which often do not meet code will be phased out as the availability of old chassis disappears.
Vehicles already approved with a third extinguisher mounted to discharge onto likely fire sources in the engine compartment, such as the alternator or hydraulic pump, are grandfathered. Engineered systems will be required when the cab and chassis of currently authorized vehicles are replaced.
Tanks brought into service after July 1998 but before the end of July 1999 must conform to TC (MC/DOT) 306, 406 or 412. This includes, but is not limited to, meeting the appropriate design and working pressures for the particular TC (or MC/DOT) standard, venting and pressure relief, rollover and spill protection plus an appropriate discharge valve meeting the standards. Tanks older than this have been grandfathered and must be periodically tested as per TC requirements (see Appendix D & E).
Tanks brought into service prior to July 1999 in Canada have been grandfathered, but those that do not meet the requirements of TC (MC/DOT) 306, 406 or 412 coded vessels built to earlier published B620 or CFR 49 (USA) standards will be limited to private property use only, e.g., mines after January 1, 2010, according to the terms of the ERD licence.
Fuel tanks are not grandfathered and, if the tank is over 450 liters, it must conform to TC406.

9. USED EQUIPMENT IMPORTED FROM USA

A MPU imported from the US will have to meet CMVSS and B620 tank requirements prior to the date when the vehicle is first imported into Canada. This will mean that the vehicle will have to be finished by a TC registered final manufacturer, the emulsion tank design will need a design review and an as-built inspection by a TC registered inspector will be required. This means that it will be very difficult and may not be possible to import a vehicle that was not built for Canada and have it approved by ERD.

APPENDIX A

Location List for Authorized Units (MPUs)

COMPANY File No. XP 3000-xxxx-T Date Rev.

Change	ERD Authorization Number	Company Unit Number	Location: Site Province	ETP Number	Make & Model	Year	Serial Number	GVWR	NEQ	Type of Process or Equipment, and Comments

APPENDIX B

Form 4

PLANT, BUILDINGS AND EQUIPMENT

Licence /Certificate No.:

File Registry Number: XP

Company and Location:

Date of Application:

Please refer to the proper section in this guideline to help fill out each section

Identification ( Ref. section 6.1.1)
1. Unit number
2. ETP#
3. Make Model Year
4. Serial #
5. GVW
6. Type of Unit Blend truck
  1. Total Capacity NEQ Kg
Automotive (Ref. section 6.1.2)
1. same
General safety and compliance (Ref. section 6.1.3)
1. same General brief description of the truck to be added here. It should start from the cab and work backwards.
Ammonium nitrate or AN/FO bins (Ref. section 6.2.1)
1. same
Pneumatic AN/FO Transfer Units
(Ref. section 6.2.2)
1. same
Explosives Tank (Ref. section 6.2.4)
1. same
Process Fuel Oil Tank (Ref. section 6.2.5)
1. same
Gassing Solution Tank (Ref. section 6.2.6)
1. same
Other Tanks (Ref. section 6.2.7)
1. same
Progressive Cavity Pump (Ref. section 6.2.8)
1. same
Delivery Hose reel (Ref. section 6.2.9)
1. same
Other Explosives Pump (Ref. section 6.2.10)
1. same
Augers (Ref. section 6.2.11)
1. same
Controls (Ref. section 6.2.12)
1. same
Hydraulics (Ref. section 6.2.13)
1. same
Other information (Ref. section 6.2.14)
1. same

FOR EXISTING TRUCKS PLEASE SUPPLY PHOTOS OF ALL 4 SIDES & TOP. PLEASE ANNOTATE THE DRAWINGS OR ADD A DIAGRAM OF THE TRUCK LABELLING MAJOR COMPONENTS SUCH AS TANKS, AUGERS & PUMPS ETC. A FLOW DIAGRAM MAY BE REQUIRED FOR COMPLEX TRUCKS.

NEW TRUCKS SHOULD HAVE ENGINEERING DRAWINGS AS WELL AS ABOVE.

Stick to the numbers. Even if you do not have a section 6 aluminum bin, section 7 explosives tank must stay section 7! Where possible please follow the subsection letters as in the Guide for Form 4 for process vehicles.

FOR OFFICE USE ONLY

Approved by: _____________________________

Date __________

For the Minister of Natural Resources of Canada at OTTAWA

AMENDMENT No.

ERD-04-2000(MSW)

APPENDIX C

APPENDIX D

(This table is a reproduction of Table 7.1 from B620-03. The latest version of CSA B620 should be used as the official reference.)

Table 7.1

Periodic Inspection and test intervals
(See Clauses 7.1.1, C.1, C.2, and C.6)

Description of Tank	Clause 7.2.1 External Inspection (V)	Clause 7.2.2 Internal Inspection (1) (I)	Clause 7.2.3 Lining Inspection	Clause 7.2.5 Leakage test (K)	Clause 7.2.7 Pressure test, hydrostatic or pneumatic (P)	Clause 7.2.11 Structural Inspection
TC 306 or TC 406	1 year	5 years(2)	____	1 year	5 years(3)	____
TC 306 Crude or TC406 Crude tanks	2.5 years	5 years	____	2.5 years	5 years(3)
TC 307 or TC 407	1 year	5 years	____	1 year	5 years	____
TC 312 or TC 412	1 year	5 years	____	1 year	5 years(3)	____
TC 423	1 year	1 year	──	1 year	5 years	5 years
TC 350	6 months	1 year	──	1 year	2 years	──
TC 350 Crude Tanks	1 year	1 year		1 year	2 years	____
TC 331	1 year	5 years	──	1 year (4)	5 years(4)	──
TC 338	1 year	──	──	──	5 years	──
TC 341	1 year	10 years	──	──	10 years	──
TC 11 portable	1 year	10 years	____	1 year	5 years	____
TC 44 portable	1 year	5 years	____	1 year	5 years	____
TC 51 portable	2.5 years	5 years	5 years	____	5 years	____
TC 56 and 57 portable	2.5 years	____	____	____	2.5 years	____
TC 60 portable	2 years	Initial: 4 years. Next 8 years: every 2 years. After 12 years: annually	Initial: 4 years. Next 8 years: every 2 years. After 12 years: annually		Initial: 4 years. Next 8 years: every 2 years. After 12 years: annually	____

Note: See an official copy of CSA B620 for the Notes.

APPENDIX E

(This table is only a reproduction of table 7.3 from B620-03. The latest version of CSA B620 should be used as the official reference.)

Table 7.3

Pressures for Periodic Retesting
(See Clauses 5.2.5, 7.2.7.7, and 7.2.7.8)

Tank specification	Pressure, kPa (psi)
TC 306 or MC 306	21 kPa (3 psi) or design pressure, whichever is greater
TC 307 or MC 307	275 kPa (40 psi) or 1.5 x design pressure, whichever is greater
TC 312 or MC 312	21 kPa (3 psi) or 1.5 x MAWP, whichever is greater
TC 331, MC 330, or MC 331	1.5 x design pressure
TC 406	34.5 kPa (5 psig) or 1.5 MAWP, whichever is greater
TC 407	275.8 kPa (40 psig) or 1.5 x MAWP, whichever is greater
TC 412	1.5 x MAWP
TC 423	1.5 x MAWP
TC 338 or TC 341	According to calculation in Clause 5.2.5
TC 350	155 kPa (22.5 psig) or 1.5 x MAWP, whichever is greater
TC 11	According to calculation in Clause 6.4.11 c)
TC 51 or DOT 51	1.5 x MAWP
TC 60 or DOT 60	415 kPa (60 psi)
TC Type 1, 2 and 3	1.5 x MAWP

** ERD Retesting requirements for Mobile Process Units: TC412 & TC423; MAWP= 5 psi.

APPENDIX F

(This table is only a reproduction of table EP17 from CAN/CGSB-43.151-97. The latest version of CAN/CGSB-43.151-97 should be used as the official reference.)

EP17
Inner Packaging and Arrangements	Intermediate Packaging and Arrangements	Outer Packaging and Arrangement
Not necessary	Not necessary	IBCs: Metal (11A), (11B), (11N), (21A), (21B), (21N), (31A), (31B), (31N) Flexible (13H2), (13H3), (13H4), (13L2), (13L3), (13L4), (13M2) Rigid plastics (11H1), (11H2), (21H1), (21H2), (31H1), (31H2) Composite (11HZ1), (11HZ2), (21HZ1), (21HZ2), (31HZ1), (31HZ2) Highway tanks
Division, Compatibility group and UN number : 1.1D: UN 0082, 0241 1.5D: UN 0331, 0332 Special provisions: 260: UN 0082 261: UN 0241 Notes IBCs shall only be used for free flowing substances. Metal IBCs shall not be used for UN 0082 and 0241. Flexible IBCs shall be used for solids only. Where a highway tank is used to transport explosives, the tank shall Conform to the requirements for specification TC (or MC) 307 (in accordance with CSA B620), Conform to the requirements for specification TC (or MC) 407 (in accordance with CSA B620), or Be of a design approved by the Chief Inspector of Explosives. Where a highway tank designed for the transport and/or mixing of explosives (e.g. ammonium nitrate/fuel oil emulsion) is used, the design and any changes to the initial design shall be approved by the Chief Inspector of Explosives as required by the Explosives Act and Regulation. Highway tanks designed for the transport and/or mixing of explosives, brought into service after July 1, 1998 and before the end of July 1999, shall have the emulsion tank conform to the requirements for TC (or MC) 306, 406 or 412. Highway tanks brought into service after July 1999 shall have the emulsion tank conform to the requirements for TC (or MC) 412 only. Where an IBC is used to transport dangerous goods, the design and use of the IBC shall conform to Appendix B.

APPENDIX G

Suggested Truck Wiring Standards
For Mobile Process Units Carrying Over 2000 kg of Explosives

All wiring shall conform to the Canadian Electrical Code
Mobile Process Units wiring aft of the cab shall be in conduit extending into all fittings and junctions.
TECK90 XLPE or ACWU90 cable is an acceptable alternative to conduit.
Where conduit or cable enters lights, motors, electrical equipment or junction boxes, the wire entries must be sealed and entry fittings designed for the purpose must be used.

The entry needs to be liquid-tight and must protect the wires from rubbing damage and the connection from strain.

All wiring must have overcurrent protection.
Class 2 circuits. Process vehicles with Class 2 circuits meeting the requirements of Class 2 circuits in section 16 of the Canadian Electrical Code are acceptable on mobile process units and do not have to meet the above requirements.

Class 2 circuits are limited voltage and current. 0–20 volt class 2 circuits must be limited to less than 5 amps. They present no electric shock hazard and no significant fire hazard. There are rules governing overcurrent protection, conductors and separation from other circuits. These circuits are usually suitable for instrumentation and control. On MPUs these circuits could be used for solenoid valves as well as sensors and transducers.

All exterior electrical boxes shall be EEMAC/CEMA 4 X with sealed wire entries.

Wiring must be protected by bushings and supports if mechanical damage is likely where it passes through bulkheads or near sharp edges.

Notwithstanding the above, wiring connected to ABS braking systems, temperature sensors for bearings or the differential or similar safety systems originally installed by the truck chassis manufacturer may be left as installed. This does not include lighting circuits.

APPENDIX H

ERD MOBILE PROCESS UNIT INSPECTION GUIDE

Licence/File No.: __________________________________________________________________

Unit No.: _________________________________________________________________________

Authorization No.: ________________________________________________________________

Company: ____________________________________ Date: _________________________

Inspectors: ______________________________________ Signature: ____________________

Located at: ________________________________________________________________________

Type of process: ___________________________________________________________________
Note: The section on this form are number the same as on Form 4

Component/Requirement. Check against licence description.	Licence requires	Good practice	Check if OK	Notes, comments and actions required
1. Products made or carried by the truck
AN
Fuel oil
Emulsion
Gassing solution

2. Automotive
2.1 Annual mechanical fitness check by a certified mechanic. (If it is a vehicle which is confined to a closed site, a certified mechanic still has to sign off on the vehicle stating that the vehicle is fit to perform its duties in a safe fashion.)	X			Please note the expiry of the inspection and the inspection number or mechanic licence number.
2.2 Truck exhaust:
Vertical exhaust with heat shield.
Horizontal portions of exhaust positioned without explosives storage or handling components above.	X
Horizontal portions of exhaust shielded from drips of hydraulic fluid, oil or emulsion.		X
Does it have an after-treatment device (ATD)?
If yes, is it shielded and at a safe location?	X
2.3 Truck fuel tank: Non-spill fusible cap. Fuel line shut-off valve(s) at all fuel tank outlets (easily accessible).	X X
2.4 All wires aft of cab in conduit or TECK 90 cable.	X
2.5 Batteries: Enclosed in battery box. Disconnect switch no more than 30 cm from "hot" terminal. Switch is labelled. Switch is located on driver's side.	X X	X

3. General Safety and Compliance
3.1 Engineered fire suppression system for engine compartment. (note date of last inspection/maintenance by a certified person)		X
3.2 Fire extinguishers (2 X 4A: 40 BC. + 1 X 10lb engine suppression directed at alternator or hydraulic pump / PTO area.) 4A: 40BC	X
3.3 Tool kit or other equipment securely mounted.		X
3.4 UN placards on all 4 sides of truck for each dangerous good.	X
3.5 Lockable hose caps and valves on explosives bins and tanks.	X
3.6 No brass or copper exposed to AN or explosives.	X
3.7 Ladder suitable for personnel to access top of body. (non-slip rungs, standard spacing and standoff)		X
3.8 Non-slip catwalk on top of truck.		X
3.9 Handrail on top.		X
3.10 Booms and augers can be latched in place to prevent swing-out while travelling to site.		X
3.11 Caution, warning and information labels.		X
3.12 Wires and hoses are protected from rubbing and impact.	X
3.13 General impression of the ruggedness of structure and systems.		X
3.14 Company name plus logo and unit number on vehicle, easily read.	X

4. Ammonium Nitrate or ANFO Bin
4.1 Construction material (prill contact surfaces). Stainless steel or aluminium preferred.		X
4.2 Locking hatch covers.		X
4.3 Hatch design prevents water ingress.		X

5. AN/ANFO Blow Loaders
5.1 Semi-conductive hose for blow loading holes. (no wire allowed in hose)	X			Note make and model if possible.

6. Empty section just so the numbers are following Form 4	N/A	N/A
7. Explosives Tank
7.1 Stainless steel, (product contact surfaces).		X
7.2 Roll-over protection. (after July 1998 TC-306/406; After July 1999 TC/DOT 412. Non-spec. tanks are grandfathered but confined to close site only)	X			Note information on tank plate + VKIP date of last inspection.
7.3 Vented.	X
7.4 Hatch: Lockable. Watertight. Sufficient number for tank cleaning.	X

8. Process Fuel Oil Tank
8.1 Metal construction. How many liters?	X
8.2 Non-spill air vent.	X
8.3 Fusible fill cap.	X
8.4 Shut-off valves at all outlets.	X
8.5 Manual or self-closing valves on sight gauge level indicator. Is the sight gage tube protected?	X			Not permitted on tanks over 450 litres
8.6 Meets CSA B620-09 if over 450 litres. TC406.( If >450 L, it must be inspected annually – VKIP)				No sight glass allowed on TC406

9. Gassing Solution Tank
9.1 Stainless steel or plastic construction.
9.2 Non-spill with venting or pressure relief.

10. Other dangerous goods tanks or bins
10.1 Type
10.2 Comments

11. Progressive Cavity Pump if fitted
11.1 Make, type, size, identification number, etc.
11.2 Seal. (No packing gland allowed)	X
11.3 Pump safeties: At least two are mandated. Note what is fitted. High pressure trip. Low pressure trip. High temperature trip. Rupture disc (80% deadhead pressure). Hydraulic bypass valve (N/O solenoid): Before pump motor. Ramped or slow start: 5 minute timer. Thermofuse. Flow switch.	X
11.4 Drive guard(s) in place.	X
11.5 When was the pump last tested for wear?
11.6 Is there a testing program in place?		X
11.7 When were pump safety devices last verified/tested?		X
11.8 Pump maintenance log available on site.	X

12. Delivery Hose Reel
12.1 Chain guard if chain driven	X
12.2 Drip tray under delivery hose reel.		X
12.3 Holder for loose end of delivery hose (spill prevention).		X

13. Other Explosives Pump if fitted
13.1 Make, type, size, identification number, etc.
13.2 Pump maintenance logbook present.		X
13.3 Outboard bearings.	X
13.4 Rupture disc if fitted. Note pressure.
13.5 Note other safety devices fitted.
13.6 Drive guard(s) in place.	X
13.7 All product hoses in good condition with no rub points. (Not referring to delivery hose here)		X

14. Augers
14.1 Stainless steel contact surfaces preferred.		X
14.2 Outboard bearings with stand-off spacing at ends.	X
14.3 Excessive oil leakage from ANFO mixing auger? (Automatic valve at oil injection nozzles can solve this)

15. Controls
15.1 Where is the control panel located?
15.2 Electric circuits with manually reset breakers or fuses.	X
15.3 Process controls in EEMAC 4X enclosures with sealed wire entries.	X
15.4 Check junction boxes and push-button stations for: Damage to enclosure. Screws missing from cover. Water in box.
15.5 All wiring, buttons and switches labelled.		X
15.6 All valves labelled and easily accessed.		X

16. Hydraulics
16.1 Hydraulic lines and fittings do not leak.		X
16.2 Sleeves protect lines at sharp edges or where passing through openings.	X

17. Other Comments
17.1 Is the truck in current use?
17.2 Is the truck decontaminated?
17.3 Is the truck clean?
17.4 Adequate wash bay and garage for truck.	X
17.5 Has the truck had its daily inspection?
17.6 Are appropriate licences, logs, permits and shipping documents with the truck?
17.7 Are operating and maintenance manuals available?	X
17.8 General impressions of the truck.

This checklist is a guide and does not need to be fully completed on every inspection. The inspector can choose what to inspect or not to inspect. The first inspection of a vehicle against this guide will be quite long as it involves checking the vehicle against the specification on the licence. (For the first inspection the checklist could be completed by the truck operator and then checked during the visit by the inspector.) Subsequent checks can concentrate on the state of the vehicle and should be quite quick.

MPUs will not have all the equipment on the list, because the list is meant to cover the many different types of trucks and all other borehole loading equipment mounted on trailers or skids.

Inspectors, who are not vehicle or pump experts, will not be able to verify some of the items. They could instead comment on the apparent quality of regular or preventive maintenance.

An ‘OK Check’ only signifies that nothing was obviously wrong with the item, not that it has been inspected in great depth.

Although ‘good practice’ items are not specified on the licence, the inspector may require them and must judge which are important for the vehicle being checked. They are the sort of things that are expected on a vehicle “in sound mechanical condition and suitable for and capable of safely transporting explosives” or of safe bulk explosives operations. These items help the inspector to establish that the vehicle is fit for use.