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Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 21:Determination of sulfate radical content in rare earth oxides—Barium sulfate turbidimetry
Standard in brief
Scope of Application:
本文件描述了稀土氧化物中硫酸根含量的测定方法。
本文件适用于稀土氧化物中硫酸根含量的测定。测定范围(质量分数):0.010%~0.20%。
Basic information
Standard No:GB/T 12690.21-2024
Standard Name:稀土金属及其氧化物中非稀土杂质化学分析方法 第21部分:稀土氧化物中硫酸根含量的测定 硫酸钡比浊法
English Name:Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 21:Determination of sulfate radical content in rare earth oxides—Barium sulfate turbidimetry
Standard Status:现行
Release Date:2024-10-26
Effective Date:2025-05-01
Language of Publication:中文简体
Standard Classification
ICS Number:77.120.99
CCS Number:H14
Related Standards
Referenced Standards:GB/T 6379.2,GB/T 6682,GB/T 8170,JJG 178
Publication Information
Number of pages:12
Number of words:17 K
Format:大16
Edition:1
Color Pages:0
Electronic Version:Yes
Color Images:No
Print Publication Date:2024-10-01
Standard Revision Information
Has Amendment:No
Other Information
Application Dept:国家市场监督管理总局、国家标准化管理委员会
Standard Type:CN
Standard Attribute:GB
Other Standard Number:12690.21
Drafter:王宝华、王金凤、黄荣兴、方雄洲、刘丽媛、李净岩、刘鹏宇、权龙海、叶桂芳、凌乐玖、薛建萍、缪峰梅、母园园、谢宝平、胡改霞、孙林敬
Drafting Organization:福建省金龙稀土股份有限公司、国标(北京)检验认证有限公司、包头稀土研究院、四川省乐山锐丰冶金有限公司、赣州晨光稀土新材料有限公司、包头华美稀土高科有限公司、定南大华新材料资源有限公司
Management Organization:全国稀土标准化技术委员会(SAC/TC 229)
Proposing Department:全国稀土标准化技术委员会(SAC/TC 229)