Pb - Lead

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Element CCRMP
Material		 Concen-
tration		 Units Classification*
Pb SY-4 10 µg/g Certified
Pb DS-1 13.8 µg/g Certified
Pb SO-3 14 µg/g Certified
Pb SU-1b 58 µg/g Certified
Pb SSC-1 65.3 µg/g Certified
Pb CUPD-1 69 µg/g Certified
Pb RTS-3a 209 µg/g Certified
Pb CUAR-1 864 µg/g Certified
Pb NZA-5 0.0012 % Certified
Pb NZA-1 0.0030 % Certified
Pb NZA-3 0.0045 % Certified
Pb NZA-2 0.0076 % Certified
Pb NZA-4 0.0101 % Certified
Pb NZA-7 0.0136 % Certified
Pb NZA-6 0.0809 % Certified
Pb CZN-3 0.113 % Certified
Pb CZN-4 0.1861 % Certified
Pb MP-1b 2.091 % Certified
Pb CCU-1d 0.262 % Certified
Pb PD-1 2.75 % Certified
Pb CPB-2 63.52 % Certified
Pb-210 CLV-2 0.074 Bq/g Certified
Pb-210 CLV-1 0.66 Bq/g Certified
Pb-210 DL-1a 1.40 Bq/g Certified
Pb-210 UTS-1 3.25 Bq/g Certified
Pb-210 UTS-2 4.55 Bq/g Certified
Pb-210 UTS-3 12.6 Bq/g Certified
Pb-210 BL-4a 15.55 Bq/g Certified
Pb-210 DH-1a 30.8 Bq/g Certified
Pb-210 UTS-4 32.4 Bq/g Certified
Pb-210 BL-5 866 Bq/g Certified
Pb WPR-1 6 µg/g Provisional
Pb TILL-1 12 µg/g Provisional
Pb STSD-4 13 µg/g Provisional
Pb TILL-1 14 µg/g Provisional
Pb TILL-3 16 µg/g Provisional
Pb STSD-4 16 µg/g Provisional
Pb TDB-1 17 µg/g Provisional
Pb TILL-3 17 µg/g Provisional
Pb LKSD-3 21 µg/g Provisional
Pb TILL-2 21 µg/g Provisional
Pb TILL-1 22 µg/g Provisional
Pb TILL-2 24 µg/g Provisional
Pb LKSD-3 26 µg/g Provisional
Pb TILL-3 26 µg/g Provisional
Pb LKSD-3 29 µg/g Provisional
Pb TILL-2 31 µg/g Provisional
Pb LKSD-2 34 µg/g Provisional
Pb STSD-1 34 µg/g Provisional
Pb STSD-1 35 µg/g Provisional
Pb TILL-4 36 µg/g Provisional
Pb TILL-4 37 µg/g Provisional
Pb STSD-3 39 µg/g Provisional
Pb LKSD-2 40 µg/g Provisional
Pb STSD-3 40 µg/g Provisional
Pb LKSD-2 44 µg/g Provisional
Pb RTS-2 45 µg/g Provisional
Pb TILL-4 50 µg/g Provisional
Pb RTS-4 60 µg/g Provisional
Pb LKSD-1 82 µg/g Provisional
Pb LKSD-1 83 µg/g Provisional
Pb LKSD-1 84 µg/g Provisional
Pb LKSD-4 91 µg/g Provisional
Pb LKSD-4 93 µg/g Provisional
Pb RTS-1 105 µg/g Provisional
Pb PTM-1a 0.029 % Provisional
Pb PTC-1a 0.05 % Provisional
Pb CCU-1c 0.34 % Provisional
Pb FER-1 5200 µg/g Provisional
Pb TILL-1 <10.0 µg/g Informational
Pb WGB-1 4 - 14 µg/g Informational
Pb FER-4 8 µg/g Informational
Pb HV-2 8 µg/g Informational
Pb FER-3 9 µg/g Informational
Pb FER-2 11 µg/g Informational
Pb CH-4 14 µg/g Informational
Pb MA-3a 20 µg/g Informational
Pb TILL-3 23 µg/g Informational
Pb TILL-1 24 µg/g Informational
Pb TILL-3 24 µg/g Informational
Pb MA-2c 25 µg/g Informational
Pb TILL-2 31.5 µg/g Informational
Pb WMS-1a 33 µg/g Informational
Pb TILL-2 35.7 µg/g Informational
Pb TILL-4 42 µg/g Informational
Pb TILL-4 50 µg/g Informational
Pb MA-1b 200 µg/g Informational
Pb BL-2 922 µg/g Informational
Pb BL-3 1710 µg/g Informational
Pb CD-1 0.02 % Informational
Pb TPO-1 0.02 % Informational
Pb TLS-1 0.023 % Informational
Pb BL-4a 0.031 % Informational
Pb MP-2 0.04 % Informational
Pb BL-2a 0.09 % Informational
Pb HCC-1 1.0 % Informational
Pb BL-5 1.5 % Informational
Pb PD-1 2.75 % 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.