ISO 4945:2018

Steel — Determination of nitrogen — Spectrophotometric method

Publication date: Oct 16, 2018

General information

Current stage: 90.93 Effective date: May 2, 2024

Originator: ISO

Owner: ISO/TC 17/SC 1

Type: International Standard

ICS: 77.080.20

Languages: English French

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Status: Published

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Scope

This document specifies a spectrophotometric method for the determination of nitrogen in steel.
The method is applicable to the determination of nitrogen mass fraction between 0,000 6 % and 0,050 % in low alloy steels and between 0,010 % and 0,050 % in high alloy steels.
The method does not apply to samples containing silicon nitrides or having silicon contents higher than 0,6 %.

Life cycle

PREVIOUSLY

Revises
ISO 4945:1977

NOW

PUBLISHED
ISO 4945:2018
90.93 Standard confirmed
May 2, 2024

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