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SSH EN 10179:2024

Steels - Determination of nitrogen (trace amounts) - Spectrophotometric method

Oct 10, 2025

General information

60.60     Oct 10, 2025

95.99   

DPS

DPS/KT 133

European Norm

77.040.30  

English  

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Scope

This document specifies a spectrophotometric method for the determination of nitrogen in steels.
The method is primarily intended for the determination of total nitrogen in very low contents in non-alloy steels.
It can be used, however, for any low nitrogen ferrous alloy that is soluble in hydrochloric acid provided that the acid-resistant form of silicon nitride is not present. These highly resistant nitrides have been found only in samples of silicon steels manufactured without aluminium addition and then only in sheet material.
The method is applicable to nitrogen contents from 0,000 5 % (by mass) to 0,005 % (by mass).
The precision data of the present method are given in Annex A.

Life cycle

PREVIOUSLY

PUBLISHED
SSH EN 10179:1989

NOW

PUBLISHED
SSH EN 10179:2024
60.60 Standard published
Oct 10, 2025

Related project

Adopted from EN 10179:2024 IDENTICAL