IAEA-456

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Inorganic (45)
,
Sediment (22)

€150.00

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Producing Laboratory: MESL

Costal Sediment (Methyl Mercury)

Certificate: download (pdf) (rev. 02)
Unit Size: 15g
Price per Unit: 150 EUR
Report: IAEA/AQ/45
Date of Release: 5/20/2017
Contact point: NA-EL.Reference-Materials.Contact-Point@iaea.org

The certificate for the IAEA 456 CRM is the only official source for the trace elements mass fractions certified values and their expanded uncertainties.

Certified mass fraction values (based on dry mass)

Analyte	Unit	Certified value⁽ᵃ⁾	Expanded uncertainty⁽ᵇ⁾
Al	mg kg^-1	55.4 x 10³	4.0 x 10³
As	mg kg^-1	6.14	0.52
Cd	mg kg^-1	0.198	0.020
Co	mg kg^-1	4.72	2.5
Cr	mg kg^-1	589	42
Cu	mg kg^-1	44.6	2.4
Fe	mg kg^-1	49.5 x 10³	3.2 x 10³
Hg	mg kg^-1	0.077	0.005
MeHg	mg kg^-1 as Hg	0.125 x 10^-3	0.019 x 10^-3
Mn	mg kg^-1	825	52
Ni	mg kg^-1	760	56
Pb	mg kg^-1	33.4	2.1
V	mg kg^-1	223	16
Zn	mg kg^-1	203	9

(a) Certified values are calculated from the accepted data sets, each set being obtained by a different laboratory and/or a different method of determination following ISO 33405.

(b) The uncertainty is expressed as an expanded uncertainty with a coverage factor k = 2, corresponding to a 95% level of confidence, estimated in accordance with the JCGM 100:2008 [2] and ISO 33405.

The assigned property values were established, considering the results reported by expert laboratories, participating in the characterisation campaign for the IAEA 456. The characterisation campaign was organised by the IAEA Environment Laboratories in Monaco. The details concerning the production process and all reported results, as well as the criteria for the assignment of property values are presented in the certification report for the IAEA 456

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