Hg - Mercury

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Element CCRMP
Material		 Concen-
tration		 Units Classification*
Hg SO-3 0.017 µg/g Certified
Hg CZN-4 4.54 µg/g Certified
Hg DS-1 82.0 µg/g Certified
Hg PD-1 389 µg/g Certified
Hg TILL-4 39 ng/g Provisional
Hg TILL-2 74 ng/g Provisional
Hg STSD-3 90 ng/g Provisional
Hg TILL-1 92 ng/g Provisional
Hg TILL-3 107 ng/g Provisional
Hg LKSD-1 110 ng/g Provisional
Hg STSD-1 110 ng/g Provisional
Hg LKSD-2 160 ng/g Provisional
Hg LKSD-4 190 ng/g Provisional
Hg LKSD-3 290 ng/g Provisional
Hg STSD-4 930 ng/g Provisional
Hg CZN-3 5 µg/g Provisional
Hg CCU-1d 7.0 µg/g Provisional
Hg CPB-2 10.03 µg/g Provisional
Hg CCU-1c 32 µg/g Provisional
Hg SY-4 10 - 14 ng/g Informational
Hg WGB-1 0.01 µg/g Informational
Hg FER-2 0.02 µg/g Informational
Hg CH-4 0.03 µg/g Informational
Hg PD-1 389 µg/g 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.