Methods for chemical analysis of bauxite--Determination of iron oxide content--Orthophenanthroline photometric method GB/T 3257.5-1999 - Chinese Category:GB/T 3257.5-1999

English Title:	Methods for chemical analysis of bauxite--Determination of iron oxide content--Orthophenanthroline photometric method
Chinese Title:	铝土矿石化学分析方法邻二氮杂菲光度法测定三氧化二铁量
Standard No.:	GB/T 3257.5-1999
Category No.:	D42
Issued by:	SQTSB
Issued on:	1999-08-03
Implemented on:	2000-4-1
Status:	superseded
Superseded by:	YS/T 575.5-2006 Methods for chemical analysis of bauxite -- Determination of iron oxide content -- Orthophenanthroline photometric method
Superseded on:	2006-10-11
Abolished on:
Superseding:	GB/T 3257.5-1982 Methods for chemical analysis of bauxite ores The sulfosalicylic acid photometric method for determination of iron oxide content
Word Count:	2000 words
Similar Standards:	GB/T 3257.8-1999 GB/Z 39124-2020 YS/T 341.4-2016 YS/T 1115.5-2016 YS/T 1115.6-2016 YS/T 1115.2-2016 YS/T 1115.12-2016 YS/T 1115.7-2016 YS/T 1115.11-2016 YS/T 1115.3-2016 YS/T 1050.10-2016 YS/T 1115.14-2016 YS/T 1115.4-2016 YS/T 1115.9-2016 YS/T 1115.8-2016 YS/T 1115.1-2016 DZ/T 0279.19-2016 DZ/T 0279.16-2016 DZ/T 0279.14-2016 DZ/T 0279.13-2016

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