Standard No.:	GB/T 223.4-2008
Chinese Name:	钢铁及合金 锰含量的测定 电位滴定或可视滴定法
English Name:	Alloyed steel - Determination of manganese content - Potentiometric or visual titration method
Professional Classification:	H11 Steel and iron alloy analysis method
Professional Classification:	GB National Standard
ICS Classification:	77.080.20 Steel
Issued by:
Issued on:	2008-05-30
Implemented on:	2008-12-01
Status:	VALID
Replace:	GB223.4-1988 Methods for chemical analysis of iron, steel and alloy; The volumetric method for determination of manganese content by ammonium nitrate oxidation
Language:	English
File Format:	PDF
Word Count:
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This Part specifies potentiometric titration method or visual titration method for determination of manganese content.
This Part is applicable to determination of manganese, with mass fraction (m/m) of 2%~25%, in alloyed steels.
It also applies interference determination "results" of vanadium and cerium. If the content of cerium in the sample is less than 0.01% or that of vanadium is less than 0.005%, interference determination may be negligible. If the content of cerium in the sample is larger than 0.01% or that of vanadium is larger than 0.005%, theoretical value correction may be carried out.