Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of nitrogen Steel: spectrophotometric method (for trace amounts)

Available format(s)

Hardcopy , PDF

Superseded date

21-06-2024

Language(s)

English

Published date

30-09-1986

Publisher

British Standards Institution

National foreword
Method
1 Scope and field of application
2 Reference
3 Principle
4 Reagents
5 Apparatus
6 Sampling
7 Procedure
8 Expression of results
9 Test report
Annex
Precision data
Figures
1 Cation exchange column
2 Example of aluminium alloy heating block
3 Steam distillation apparatus

Describes a method for the spectrophotometric determination of nitrogen in steels. Intended to determine total nitrogen in very low nitrogen non alloy steels. May be used for any low nitrogen ferrous alloy that is soluble in hydrochloric acid provided that the acid resistant form of silicon nitride is not present. This highly resistant nitride has been found only in samples of silicon steels manufactured without aluminium addition and then only in sheet material. Applicable to nitrogen contents from 0.0005 to 0.005%.

Committee	ISE/1
DevelopmentNote	Also numbered as EN 10179 and EURONORM 179 Supersedes 82/71476 DC (09/2005)
DocumentType	Standard
Pages	14
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN 10179:2024

This EURONORM specifies a method for the spectrophotometric determination of nitrogen in steels.

The method is primarily intended for the determination of total nitrogen in very low nitrogen non-alloy steels. It may 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. This highly resistant nitride has 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 0.0005 to 0.005% (m/m).

NOTE – The method has also been successfully applied to a pure iron with a nitrogen content of 0.0038% (m/m) – see Annex.

DEFSTAN 03-27/2(1998) : 1998	ELECTRODEPOSITION OF NICKEL FOR ENGINEERING PURPOSES
BS 3605-2:1992	Austenitic stainless steel pipes and tubes for pressure purposes Specification for longitudinally welded tubes

EURONORM 18 : 1979	TAKING AND PREPARATION OF SAMPLES AND SAMPLE SECTIONS OF STEEL AND STEEL PRODUCTS
BS 6200-2.1:1993	Sampling and analysis of iron, steel and other ferrous metals. Sampling and sample preparation Methods for iron and steel
BS 6200-2.2:1993	Sampling and analysis of iron, steel and other ferrous metals. Sampling and sample preparation Methods for ferroalloys and other alloying additives

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BS 6200-3.22.3:1986

Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of nitrogen Steel: spectrophotometric method (for trace amounts)

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