Code of China Chinese Classification Professional Classification ICS Classification Latest Value-added Services

Chinese National Standard Category: Heavy metal ore

English Title: Methods for chemical analysis of bauxite--Determination the total content of rare earth oxide--Tribromo-arsenazo photometric method
Chinese Title: 铝土矿石化学分析方法 三溴偶氮胂光度法测定 稀土氧化物总量
Standard No.: GB/T 3257.15-1999
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Status: superseded
Superseded by:YS/T 575.14-2006 Methods for chemical analysis of bauxite -- Determination the total content of rare earth oxide -- Tribromo-arsenazo photometric method
Superseded on:2006-10-11
Abolished on:
Superseding:GB/T 3257.15-1982 Methods for chemical analysis of bauxite ores--The arsenazo III-extraction photometric method for determination of the total content of rare earth oxide
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  
Back          Detail

Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 | Email: coc@codeofchina.com | QQ: 672269886
Copyright: Foryou Tech Co., Ltd. 2008-2020