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Key and supplementary comparisons - Results
CCQM-K58
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CCQM-K58
Results
Laboratory individual
measurements

Equivalence
statements

Degrees
of equivalence

Graph(s)
of equivalence

MEASURAND : Mass fraction of Al in silicon nitride powder
NOMINAL VALUE : 824 mg/kg

xi : result of measurement carried out by laboratory i
ULab i : expanded uncertainty (k = 2) of xi

 Lab i

xi
/ (mg/kg)
ULab i
/ (mg/kg)
 BAM 838 27
 CENAM 806.7 33.6
 NIST 816 19.4
 NMIJ 837 11


Unless otherwise stated, in the final numbers presented here, rounding has been applied according to ISO 80000-1:2009 Annex B Rule B.