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ISO 4945

1st Edition, December 15, 1977

Complete Document

Steel - Determination of Nitrogen Content - Spectrophotometric Method; (Erratum-1979)

Includes all amendments and changes through Erratum , January 15, 1979


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ENGLISH * SEE ISO DIS 4945
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Description / Abstract:

This document specifies a spectrophotometric method for the determination of nitrogen in steel .

The method is applicable to determination of nitrogen mass fraction between 0,000 6 % and 0,050 % in low alloy steels and between 0,01 % and 0,050 % in high alloy steels.

However, the method is not applicable to samples containing silicon nitride.

The method doesn't apply to samples having silicon contents > 0,6 %
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