GB/T 18114.9-2025 Active National standards

GB/T 18114.9-2025 Chemical analysis methods for rare earth concentrates—Part 9:Determination of phosphorus pentoxide content

Publish Date: 2025-08-01 Implement Date: 2026-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 18114.9-2025

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: 12 pages

Scope

本文件描述了稀土精矿中五氧化二磷含量的测定方法。
本文件适用于稀土精矿中五氧化二磷含量的测定。
本文件共包含两个方法：磷铋钼蓝分光光度法（方法1)，电感耦合等离子体发射光谱法（方法2)。测定范围（质量分数)：0.10%~30.00%，以方法1作为仲裁方法。

Development Information

Drafting Units:

包头稀土研究院、国标(北京)检验认证有限公司、江西金世纪新材料股份有限公司、厦门稀土材料研究所、包头稀土新材料技术研发中心、包头华美稀土高科技有限公司、四川省冕宁县方兴稀土有限公司

Drafting Persons:

于勇海、李佳、李志强、王素梅、杜梅、权龙海、刘琴、孙海峰、胡梦桥、刘建刚、张力久、权晓云、邬启帆、黄平丹、张其凯、袁晓红、秦波、白洋、王秉华、王彩霞、廖丕勇、康亚先

Word Count: 19 Thousand words Pages: 12 pages

Same series standard

GB/T 18114.3-2025 Chemical analysis methods for rare earth concentrates—Part 3:Determination of calcium oxide content GB/T 18114.8-2025 Chemical analysis methods for rare earth concentrates—Part 8:Determination of rare earth oxide contents and distribution GB/T 18114.11-2025 Chemical analysis methods for rare earth concentrates—Part 11:Determination of fluorine content

Replace the following standards

GB/T 18114.9-2010 Chemical analysis methods of rare earth concentrates—Part 9:Determination of phosphorus pentoxide content—Phosphorus-bismuth-molybdenum blue spectrophotometry

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 178-2007 Ultraviolet,Visible,Near-Infrared Spectrophotometers JJG 768-2005 Emission Spectrometer

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