Ce - Cerium

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Element CCRMP
Material		 Concen-
tration		 Units Classification*
Ce TDB-1 41 µg/g Certified
Ce SY-4 122 µg/g Certified
Ce WPR-1 6 µg/g Provisional
Ce LKSD-1 27 µg/g Provisional
Ce TILL-3 42 µg/g Provisional
Ce STSD-4 44 µg/g Provisional
Ce LKSD-4 48 µg/g Provisional
Ce STSD-1 51 µg/g Provisional
Ce STSD-3 63 µg/g Provisional
Ce TILL-1 71 µg/g Provisional
Ce TILL-4 78 µg/g Provisional
Ce LKSD-3 90 µg/g Provisional
Ce TILL-2 98 µg/g Provisional
Ce LKSD-2 108 µg/g Provisional
CeO2 OKA-2 14.3 % Provisional
Ce AD2 CCU-1d 2 µg/g Informational
Ce WMS-1a 7.9 ug/g Informational
Ce WGB-1 14-20 ug/g Informational
Ce HV-2 17.4 µg/g Informational
Ce  RTS-3a 30 µg/g Informational
Ce CH-4 35 µg/g Informational
Ce SU-1b 35 µg/g Informational
Ce DS-1 40 µg/g Informational
Ce MA-2c 141 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.