GB/T 18114.11-2025 Active National standards

GB/T 18114.11-2025 Chemical analysis methods for rare earth concentrates—Part 11:Determination of fluorine content

GB/T 18114.11-2025 Chemical analysis methods for rare earth concentrates—Part 11:Determination of fluorine 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 18114.11-2025

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: 16 pages

Scope

本文件描述了稀土精矿中氟含量的测定方法。
本文件适用于稀土精矿中氟含量的测定。
本文件共包含3个方法：EDTA滴定法(方法1)、茜素分光光度法(方法2)、氟离子选择电极法(方法3)。方法1测定范围(质量分数)：2.00%~20.00%，方法2测定范围(质量分数)：0.10%~2.00%，方法3测定范围(质量分数)：0.10%~20.00%。
当本文件中测定范围0.10%~5.00%出现重叠时，以方法3作为仲裁方法；测定范围>5.00%~20.00%出现重叠时，以方法1作为仲裁方法。

Development Information

Drafting Units:

包头稀土研究院、虔东稀土集团股份有限公司、包头稀土新材料技术研发中心、国标(北京)检验认证有限公司、包头华美稀土高科有限公司、中稀(凉山)稀土有限公司、青岛盛瀚色谱技术有限公司

Drafting Persons:

刘春、高立红、张慧珍、李志强、张宇婕、张秀艳、张立锋、邢嵘嵘、刘通、李立刚、温斌、王晓轩、朱霓、董琳、钟群英、王可、赵霞、薛建萍、袁红霞、强文志、胡改霞、王立、杨春林、张锦梅

Word Count: 27 Thousand words Pages: 16 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 18114.9-2025 Chemical analysis methods for rare earth concentrates—Part 9:Determination of phosphorus pentoxide content

Replace the following standards

GB/T 18114.11-2010 Chemical analysis methods of rare earth concentrates—Part 11:Determination of fluorine content—EDTA titration

Referenced Standards

GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions 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

Related Standards

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