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| Matrix or material |
Analyte or component |
Dissemination range of measurement capability |
Range of certified values in reference materials |
|
Mass fraction
in µg/g
|
Relative
expanded uncertainty
(k = 2, 95%)
in %
|
Mass fraction
in µg/g
|
Absolute
expanded uncertainty
(k = 2, 95%)
in %
|
|
soil
|
benzo(a)pyrene |
1
to 15
|
4
to 9
|
1
to 5
|
4
to 9
|
Mechanism(s) for measurement service delivery:
DMR-199b, DMR 200b, DMR 293a
Uncertainty range convention 1.
Approved on 23 November 2009.
Internal NMI service identifier: CENAM/630-Q023-021
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