As - Arsenic

Click on the material to see more complete information about its chemical composition.
Element CCRMP
Material		 Concen-
tration		 Units Classification*
As SSC-1 1.16 µg/g Certified
As SU-1b 2.49 µg/g Certified
As RTS-3a 18.2 µg/g Certified
As RL-1 19.6 µg/g Certified
As WMS-1a 30.9 µg/g Certified
As CCU-1c 34 µg/g Certified
As UTS-4 38 µg/g Certified
As CUAR-1 145 µg/g Certified
As CUPD-1 306 µg/g Certified
As DS-1 6960 µg/g Certified
As CUP-2 0.035 % Certified
As CZN-4 0.0356 % Certified
As CZN-3 0.039 % Certified
As CD-1 0.66 % Certified
As PD-1 0.77 % Certified
As MP-1b 2.30 % Certified
As WPR-1 1.4 µg/g Provisional
As FER-2 2 µg/g Provisional
As TDB-1 2.5 µg/g Provisional
As FER-1 6 µg/g Provisional
As RTS-2 6.3 µg/g Provisional
As RTS-1 8.2 µg/g Provisional
As CH-4 8.8 µg/g Provisional
As LKSD-2 9 µg/g Provisional
As LKSD-2 11 µg/g Provisional
As STSD-4 11 µg/g Provisional
As LKSD-4 12 µg/g Provisional
As TILL-1 13 µg/g Provisional
As STSD-4 15 µg/g Provisional
As LKSD-4 16 µg/g Provisional
As STSD-1 17 µg/g Provisional
As TILL-1 18 µg/g Provisional
As TILL-2 22 µg/g Provisional
As STSD-3 22 µg/g Provisional
As LKSD-3 23 µg/g Provisional
As STSD-1 23 µg/g Provisional
As TILL-2 26 µg/g Provisional
As LKSD-3 27 µg/g Provisional
As STSD-3 28 µg/g Provisional
As LKSD-1 30 µg/g Provisional
As LKSD-1 40 µg/g Provisional
As TILL-3 84 µg/g Provisional
As TILL-3 87 µg/g Provisional
As TILL-4 102 µg/g Provisional
As TILL-4 111 µg/g Provisional
As RTS-4 207 µg/g Provisional
As PTC-1a 0.012 % Provisional
As CCU-1d 0.0545 % Provisional
As PTM-1a 0.22 % Provisional
As SY-4 0.1 – 2 µg/g Informational
As WGB-1 1.5-5 µg/g Informational
As FER-3 1 µg/g Informational
As FER-4 3.6 µg/g Informational
As MA-1b 8 µg/g Informational
As MA-3a 8 µg/g Informational
As MA-2c 9.1 µg/g Informational
As GTS-2 110 µg/g Informational
As CPB-2 0.04 % Informational
As MP-2 0.2 % Informational
As PD-1 0.76  % Informational

 

*Classification of the results by level of agreement

All concentration values are derived from an interlaboratory measurement program. Samples are sent to many laboratories, typically twenty to forty, and the results are analyzed statistically to determine the mean and other statistical parameters.

Certified: The value is calculated from a minimum of 10 sets of data that fulfill specific statistical criteria regarding agreement.

Provisional: The value is calculated from 8 or 9 sets of data that fulfill specific statistical criteria regarding agreement; or alternatively, more than 9 sets of data that do not fulfill the specific statistical criteria required for certification.

Informational: The value is calculated from 7 or fewer sets of data.

Note: Because of different digestion methods used, a single material may show different concentrations for a specific element. Details about methods are provided on the certificate and in the report.