GB/T 12690.12-2024 Active National standards

GB/T 12690.12-2024 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 12:Determination of thorium and uranium contents—Inductively coupled plasma mass spectrum method

Publish Date: 2024-04-25 Implement Date: 2024-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 12690.12-2024

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Analysis methods for rare metals and their alloys

ICS Name: Other non-ferrous metals and their alloys

Publish Date: 2024-04-25

Implement Date: 2024-11-01

Publisher: 国家市场监督管理总局、国家标准化管理委员会

Technical Committee: 全国稀土标准化技术委员会(SAC/TC 229)

Pages: 16 pages

Scope

本文件描述了稀土金属及其氧化物中钍、铀量的测定方法。本文件适用于稀土金属及其氧化物中钍、铀量的测定。测定范围(质量分数)：钍量0.000 05%~0.020%；铀量0.000 05%~0.020%。

Development Information

Drafting Units:

江西省钨与稀土产品质量监督检验中心、湖南稀土金属材料研究院有限责任公司、福建省长汀金龙稀土有限公司、包头稀土研究院、定南大华新材料资源有限公司、虔东稀土集团股份有限公司、全南县新资源稀土有限责任公司

Drafting Persons:

徐娜、孙娜、曾庆平、陈荣、王贵超、王金凤、王宝华、张曼宁、温斌、张鵾、陈添连、常诚、陈燕、曹娅娟、王寿虹

Word Count: 17 Thousand words Pages: 16 pages

Same series standard

GB/T 12690.20-2024 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 20:Determination of minor amounts of fluorine and chlorine in rare earth oxides—Ion chromatography method GB/T 12690.21-2024 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

Replace the following standards

GB/T 12690.12-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides Determination of thorium content Arsenazo III spectrophotometric method and Inductively coupled plasma mass spectrum method

Referenced Standards

GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values JJF 1159-2006 Calibration Specification for Quadrupole Inductively Coupled Plasma Mass Spectrometers

Related Standards

GB/T 13840-1992 Abolished

GB/T 13840-1992 Wafer carriers

Publish Date: 1992-12-28

GB/T 15677-1995 Replaced

GB/T 15677-1995 Lanthanum metal

Publish Date: 1995-08-11

GB/T 3136-1995 abolished_transferred

GB/T 3136-1995 Tantalum powders

Publish Date: 1995-10-17

GB/T 3463-1995 Abolished

GB/T 3463-1995 Tantalum wires

Publish Date: 1995-10-17

GB/T 3628-1995 Replaced

GB/T 3628-1995 Tantalum and tantalum alloy foils

Publish Date: 1995-10-17

GB/T 16476-1996 Replaced

GB/T 16476-1996 Scandium metal

Publish Date: 1996-07-09