Cu - Copper

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Element CCRMP
Material		 Concen-
tration		 Units Classification*
Cu SY-4 7 µg/g Certified
Cu SO-3 17 µg/g Certified
Cu DS-1 27.1 µg/g Certified
Cu TDB-1 323 µg/g Certified
Cu RTS-1 595 µg/g Certified
Cu RTS-2 670 µg/g Certified
Cu TLS-1 0.078 % Certified
Cu TPO-1 0.118 % Certified
Cu CPB-2 0.1213 % Certified
Cu WPR-1 0.164 % Certified
Cu CH-4 0.20 % Certified
Cu NZA-7 0.212 % Certified
Cu  RTS-3a 0.2353 % Certified
Cu CZN-4 0.403 % Certified
Cu HV-2 0.57 % Certified
Cu CZN-3 0.685 % Certified
Cu NZA-5 1.04 % Certified
Cu SU-1b 1.185 % Certified
Cu † WMS-1a 1.396 % Certified
Cu NZA-1 1.51 % Certified
Cu NZA-3 2.00 % Certified
Cu NZA-4 2.45 % Certified
Cu NZA-2 3.00 % Certified
Cu MP-1b 3.069 % Certified
Cu NZA-6 3.17 % Certified
Cu PTC-1a 13.51 % Certified
Cu instrum CCU-1d 23.93 % Certified
Cu classical CCU-1d 23.985 % Certified
Cu PTM-1a 24.96 % Certified
Cu CCU-1c 25.62 % Certified
Cu SCH-1 9 µg/g Provisional
Cu FER-4 13 µg/g Provisional
Cu TILL-3 22 µg/g Provisional
Cu TILL-3 23 µg/g Provisional
Cu LKSD-4 30 µg/g Provisional
Cu LKSD-4 31 µg/g Provisional
Cu LKSD-4 31 µg/g Provisional
Cu LKSD-3 34 µg/g Provisional
Cu LKSD-3 34 µg/g Provisional
Cu LKSD-3 35 µg/g Provisional
Cu LKSD-2 36 µg/g Provisional
Cu STSD-1 36 µg/g Provisional
Cu LKSD-2 37 µg/g Provisional
Cu STSD-3 38 µg/g Provisional
Cu STSD-3 39 µg/g Provisional
Cu LKSD-1 44 µg/g Provisional
Cu LKSD-1 44 µg/g Provisional
Cu FER-2 45 µg/g Provisional
Cu TILL-1 47 µg/g Provisional
Cu TILL-1 48 µg/g Provisional
Cu TILL-1 49 µg/g Provisional
Cu STSD-4 65 µg/g Provisional
Cu STSD-4 66 µg/g Provisional
Cu FER-1 100 µg/g Provisional
Cu WGB-1 106 µg/g Provisional
Cu TILL-2 149 µg/g Provisional
Cu TILL-2 150 µg/g Provisional
Cu TILL-2 152 µg/g Provisional
Cu TILL-4 237 µg/g Provisional
Cu TILL-4 252 µg/g Provisional
Cu TILL-4 254 µg/g Provisional
Cu RTS-4 280 µg/g Provisional
Cu UMT-1 743 µg/g Provisional
Cu MW-1 11 µg/g Informational
Cu CLV-1 ≤40 µg/g Informational
Cu CLV-2 ≤41 µg/g Informational
Cu FER-3 6 µg/g Informational
Cu TILL-3 16.5 µg/g Informational
Cu TILL-3 17.6 µg/g Informational
Cu TILL-1 44 µg/g Informational
Cu TILL-1 44.8 µg/g Informational
Cu BL-2 78 µg/g Informational
Cu BL-3 91 µg/g Informational
Cu MA-2c 95 µg/g Informational
Cu GTS-2 100 µg/g Informational
Cu MA-1b 100 µg/g Informational
Cu MA-3a 100 µg/g Informational
Cu TILL-2 162 µg/g Informational
Cu TILL-2 176 µg/g Informational
Cu TILL-4 266 µg/g Informational
Cu TILL-4 332 µg/g Informational
Cu CD-1 <0.01 % Informational
Cu MP-2 0.09 % Informational
Cu PD-1 7.03 % Informational
Cu INM-1 25.5 % Informational
Cu HCC-1 26.9  % Informational
Cu CUAR-1 98.6 % Informational
Cu CUPD-1 99.5 % Informational
Cu (AD2) ‡ WMS-1a 1.34 % Informational

† Certified value with digestions by two acids excluded as method outliers based on statistical tests.

‡ Copper by two acid digestion (AD2) only.

*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.