Kemisk analys av metalliska material

Kommittébeteckning: SIS/TK 122 (Kemiska analysmetoder för metaller)
Källa: CEN
Svarsdatum: den 21 feb 2018
Se merSe mindre
 

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 %