Standard No.:	GB/T 223.67-2008
English Name:	Iron, Steel and Alloy - Determination of Sulfur Content - Methylene Blue Spectrophotometric Method
Chinese Name:	钢铁及合金 硫含量的测定 次甲基蓝分光光度法
Chinese Classification:	H11    Steel and iron alloy analysis method
Professional Classification:	GB    National Standard
ICS Classification:	77.080.01 77.080.01    Ferrous metals in general 77.080.01
Issued by:	AQSIQ; SAC
Issued on:	2008-05-13
Implemented on:	2008-11-1
Status:	valid
Superseding:	GB 223.67-1989 Methods for chemical analysis of iron, steel and alloy The reducing distillation-methylene blue photometric method for the determination of sulfur content
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	60.00
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1 Scope

This part of GB/T 223 specifies a methylene blue spectrophotometric method for the determination of sulfur in steel and iron.

The method is applicable to sulfur contents between 0.0003 % (m/m) and 0.010 % (m/m). However, niobium, silicon, tantalum and titanium interfere in the determination of sulfur. Depending on the concentration of the interfering elements, the application ranges and test portion masses given in table 1 apply.