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Chinese National Standard Category: Heavy metal ore

English Title: Methods for chemical analysis of bauxite--Determination of the loss on ignition--Gravimetric method
Chinese Title: 铝土矿石化学分析方法 重量法测定烧失量
Standard No.: GB/T 3257.21-1999
Category No.: D42
Issued by: State Qualtiy Technical Supervision Bureau
Issued on: 1999-08-03
Implemented on: 2000-4-1
Status: superseded
Superseded by:YS/T 575.19-2006 Methods for chemical analysis of bauxite -- Determination of the loss on ignition -- Gravimetric method
Superseded on:2006-10-11
Abolished on:
Superseding:GB/T 3257.21-1982 Methods for chemical analysis of bauxite ores--The gravimetric method for determination the loss content on ignition
Word Count:2500 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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