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| Matrix or material |
Analyte or component |
Dissemination range of measurement capability |
|
Mass fraction
in µg/g
|
Relative
expanded uncertainty
(k = 2, 95%)
in %
|
|
methanol
|
toluene |
15
to 10000
|
3
to 2.7
|
Mechanism(s) for measurement service delivery:
Value-assignment to the PT samples
Approved on 23 November 2009.
Uncertainty convention 2.
Internal NMI service identifier: CENAM/630-Q021-040
|