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ISO DIS 4945
M00001047
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ISO DIS 4945 2017 Edition, December 13, 2017 Steel - Determination of nitrogen - Spectrophotometric method
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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 %