GB/T 13840-1992
Abolished
GB/T 18114.8-2025
Active
National standards
GB/T 18114.8-2025 Chemical analysis methods for rare earth concentrates—Part 8:Determination of rare earth oxide contents and distribution
GB/T 18114.8-2025 Chemical analysis methods for rare earth concentrates—Part 8:Determination of rare earth oxide contents and distribution
Basic Information
Standard Code:
GB/T 18114.8-2025
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:
2025-08-01
Implement Date:
2026-02-01
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:
24 pages
Scope
本文件描述了稀土精矿中稀土氧化物含量和配分量的测定方法。
本文件适用于稀土精矿中稀土氧化物含量和配分量的测定。
本文件包含2 个方法： 电感耦合等离子体发射光谱法(方法1)适用于稀土精矿中稀土氧化物配分量的测定，测定范围见表1。X 射线荧光光谱法(方法2)适用于稀土精矿中稀土氧化物含量的测定，测定范围见表2。
Development Information
Drafting Units:
包头稀土研究院、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、湖南稀土金属材料研究院有限责任公司、江西省钨与稀土产品质量监督检验中心(江西省钨与稀土研究院)、国标(北京)检验认证有限公司、厦门稀土材料研究所、国合通用(青岛)测试评价有限公司、赣州艾科锐检测技术有限公司
Drafting Persons:
吴文琪、都业俭、聂成宏、薛建萍、任旭东、姜玉娟、温斌、陈燕、王贵超、石雪峰、江媛、张春兰、陈燕群、黄晓日、徐娜、刘佳与、于磊、张其凯、任晟、王祥德、刘小建
Same series standard
GB/T 18114.3-2025 Chemical analysis methods for rare earth concentrates—Part 3:Determination of calcium oxide content
GB/T 18114.9-2025 Chemical analysis methods for rare earth concentrates—Part 9:Determination of phosphorus pentoxide content
GB/T 18114.11-2025 Chemical analysis methods for rare earth concentrates—Part 11:Determination of fluorine content
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
JJG 810-1993 Wavelength Dispersive X-Ray Fluorescence Spectrometers
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