K - K2O - potassium, potassium oxide

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Element CCRMP
Material		 Concen-
tration		 Units Classification*
K MW-1 0.011 % Certified
K SCH-1 0.026 % Certified
K non AD2 RTS-3a 0.460 % Certified
K SO-3 1.16 % Certified
K CH-4 1.81 % Certified
K2O WPR-1 0.12 % Certified
K2O WGB-1 0.94 % Certified
K2O SY-4 1.66 % Certified
K no AD2 CCU-1d 0.0316 % Provisional
K WMS-1a 0.0991 % Provisional
K CUP-2 0.11 % Provisional
K OKA-2 0.34 % Provisional
K2O FER-1 0.02 % Provisional
K2O FER-3 0.03 % Provisional
K2O FER-4 0.29 % Provisional
K2O SL-1 0.51 % Provisional
K2O LKSD-4 0.8 % Provisional
K2O TDB-1 0.89 % Provisional
K2O LKSD-1 1.1 % Provisional
K2O STSD-1 1.2 % Provisional
K2O FER-2 1.33 % Provisional
K2O STSD-4 1.6 % Provisional
K2O STSD-3 1.8 % Provisional
K2O LKSD-3 2.2 % Provisional
K2O TILL-1 2.22 % Provisional
K2O TILL-3 2.42 % Provisional
K2O LKSD-2 2.6 % Provisional
K2O TILL-2 3.07 % Provisional
K2O TILL-4 3.25 % Provisional
K TILL-1 640 µg/g Informational
K TILL-3 964 µg/g Informational
K TILL-1 1188 µg/g Informational
K TILL-3 1220 µg/g Informational
K TILL-4 3115 µg/g Informational
K TILL-2 3370 µg/g Informational
K TILL-4 3915 µg/g Informational
K CLV-1 ≤0.20 % Informational
K CLV-2 ≤0.42 % Informational
K CPB-2 0.02 % Informational
K CCU-1c 0.03 % Informational
K RTS-4 0.04 % Informational
K RTS-2 0.12 % Informational
K AD2 RTS-3a 0.12 % Informational
K MP-1b 0.2 % Informational
K RL-1 0.22 % Informational
K DL-1a 0.23 % Informational
K OKA-1 0.3 % Informational
K BL-2a 0.33 % Informational
K OKA-2 0.344 % Informational
K BL-4a 0.36 % Informational
K TLG-1 0.4 % Informational
K RTS-1 0.52 % Informational
K TPO-1 0.56 % Informational
K SU-1b 0.6 % Informational
K BL-2 0.66 % Informational
K BL-3 0.66 % Informational
K CT-1 0.7 % Informational
K DS-1 1.1 % Informational
K TLS-1 1.025 % Informational
K DH-1a 1.43 % Informational
K TAN-1 1.47 % Informational
K BH-1 1.7 % Informational
K CD-1 1.8 % Informational
K NBM-1 2.36 % Informational
K MA-2c 3.2 % Informational
K KZK-1 3.55 % Informational
K MA-3a 4 % Informational
K MA-1b 4.45 % Informational
K BL-5 0.4 % Informational
K2O UMT-1 0.09 % Informational
K2O UTS-3 0.3 % Informational
K2O UTS-4 0.4 % Informational
K2O UTS-1 2 % Informational
K2O UTS-2 2 % Informational
K2O GTS-2 2.2 % Informational
K2O HV-2 2.38 % Informational
K2O CUP-1 6.4 % Informational
K-40 CLV-1 0.080 Bq/g Informational
K-40 CLV-2 0.12 Bq/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.