GB/T 13840-1992
Abolished
GB/T 16477.1-2024
Active
National standards
GB/T 16477.1-2024 Chemical analysis methods of silicon-based composite rare earth ferroalloy and RE-Mg ferro-silicon alloy—Part 1:Determination of total rare earth and fifteen rare earth elements contents
GB/T 16477.1-2024 Chemical analysis methods of silicon-based composite rare earth ferroalloy and RE-Mg ferro-silicon alloy—Part 1:Determination of total rare earth and fifteen rare earth elements contents
Basic Information
Standard Code:
GB/T 16477.1-2024
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:
2024-04-25
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:
28 pages
Scope
本文件描述了稀土硅铁合金及镁硅铁合金中稀土总量、十五个稀土元素含量的测定方法。
本文件适用于稀土硅铁合金及镁硅铁合金中稀土总量、十五个稀土元素含量的测定,包含电感耦合等离子体原子发射光谱法(方法一)和EDTA滴定法(方法二)。方法一测定范围见表1。方法二测定范围见表2。
Development Information
Drafting Units:
赣州有色冶金研究所有限公司、国合通用测试评价认证股份公司、中国北方稀土(集团)高科技股份有限公司、虔东稀土集团股份有限公司、赣州稀土友力科技开发有限公司、包头市宏博特科技有限责任公司、有研稀土新材料股份有限公司、包头华美稀土高科有限公司、包头稀土研究院、内蒙古圣泉科利源新材料科技有限公司
Drafting Persons:
谢璐、刘鸿、黎英、曾雪花、胡芳菲、田佳、董三力、徐宁、温斌、胡巍钟、江媛、李明来、崔春燕、薛建萍、罗燕生、于亚辉、马寒坤、艾凤革、石象、田智瑞、吴英昕、刘鹏宇、朱霓、孙二凤、吕楠楠、王新
Replace the following standards
Referenced Standards
GB/T 6379.2-2004 Accuracy(trueness and precision)of measurement methods and results—Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method
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
JJG 768-2005 Emission Spectrometer
Related Standards
GB/T 15677-1995
Replaced
GB/T 15677-1995 Lanthanum metal
GB/T 3136-1995
abolished_transferred
GB/T 3136-1995 Tantalum powders
GB/T 3463-1995
Abolished
GB/T 3463-1995 Tantalum wires
GB/T 3628-1995
Replaced
GB/T 3628-1995 Tantalum and tantalum alloy foils
GB/T 16476-1996
Replaced