NBN EN ISO 4945:2010
Superseded Standard
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NBN EN ISO 4945:2010

Steel - Determination of nitrogen content - Spectrophotometric method (ISO 4945:1977)
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Summary

This method is applicable to non-alloy and low-alloy steels containing between 0.002 % (m/m) and 0.050 % (m/m) of nitrogen and less than 0.6 % (m/m) of silicon. It allows the determination only of the nitrogen content which can be converted to an ammonium salt. Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report.

Technical characteristics

Publisher Bureau de Normalisation Belge (NBN)
Publication Date 12/16/2009
Cancellation Date 04/30/2010
Page Count 0
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