Järn och stål

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

Ämnesområden: Verktygsstål
Kommittébeteckning: SIS/TK 120 (Allmänna leveransbestämmelser för metall)
Källa: ISO
Svarsdatum: den 22 feb 2018
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This International Standard specifies guidelines and requirements for conducting life cycle inventory (LCI) studies of steel products reflecting steel’s unique nature of closed-loop recycling, including

a) functional unit used for LCI calculation of steel products

b) system boundaries used for LCI calculation of steel products

c) evaluation of scrap in LCI calculation of steel products

d) evaluation of co-products in LCI calculation of steel products

e) reporting of LCI calculation results of steel products

The application of LCI results, including Life Cycle Impact Assessment (LCIA) is outside the scope of this International Standard.