NA 021

DIN Standards Committee Iron and Steel

Project

Analysis of steels and irons - Internal laboratory procedure for checking the accuracy of an analytical method by using Certified Reference Materials

Abstract

The statistical method checks results for repeatability and absence of bias comparing analytical results with those obtained during the certification of a certified reference material (CRM) of similar composition. The method can be applied to all steels and irons whose composition ranges are adequately covered or bounded by certified reference materials (CRMs). It allows a laboratory to check the validity of its measurements made on a homogeneous analysis sample of unknown content (see note 8.1).

Begin

2006-04-13

WI

EC102004

Planned document number

FprCEN/TR 10350

Project number

02100910

Responsible national committee

NA 021-00-30 AA - Methods of chemical analysis  

Responsible european committee

CEN/TC 459/SC 2 - Methods of chemical analysis for iron and steel  

Contact

Dr.-Ing.

Robert Orosz

Sohnstr. 65
40237 Düsseldorf

Tel.: +49 211 6707-303

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