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CCQM-K55.c
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CCQM-K55.c
Information
Metrology area, branch   Amount of Substance, Organics
Description   Purity assessment of high purity organic materials: L-(+)-Valine
Time of measurement   2012
Status   Approved for equivalence, Results available
Reference(s)   Metrologia, 2014, 51, Tech. Suppl., 08010
CCQM-K55.c Final Report, 2014, 64 pages
Measurand   Mass fraction in mg/g of L-(+)-Valine in the comparison sample
Transfer device(s)   Dedicated samples
Comparison type   Key comparison
Consultative Committee  CCQM (Consultative Committee for Amount of Substance)
Conducted by   CCQM (Consultative Committee for Amount of Substance)
Comments   If mass balance approach used, participants must also provide estimates of the mass fraction content of each sub-class of impurity contributing to the derived value for the main component.