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BSI 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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BSI 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)

PUBLISH DATE 1986
PAGES 14
BSI BS 6200-3.22.3:1986

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.

SDO BSI: British Standards Institution
Document Number 6200-3.22.3
Publication Date Sept. 30, 1986
Language en - English
Page Count 14
Revision Level
Supercedes
Committee ISE/1
Publish Date Document Id Type View
Sept. 30, 1986 BS 6200-3.22.3:1986 Revision