GB/T 14949.7-2024 Active National standards

GB/T 14949.7-2024 Manganese ores—Determination of sodium and potassium content—Flame atomic absorption spectrometric 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 14949.7-2024

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Manganese ore

ICS Name: Manganese ore

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: 全国生铁及铁合金标准化技术委员会(SAC/TC 318)

Pages: 20 pages

Scope

本文件规定了采用火焰原子吸收光谱法测定锰矿石中钠和钾含量的方法。
本文件适用于锰矿石中钠和钾含量的测定。钠的测定范围（质量分数）: 0.02%～0.90%；钾的测定范围（质量分数）∶0.05%～3.00%。

Development Information

Drafting Units:

湛江海关技术中心、中国检验认证集团广东有限公司湛江分公司、青岛博正检验技术有限公司、上海海关工业品与原材料检测技术中心、青岛海关技术中心、宁波城市职业技术学院、鄂尔多斯市西金矿冶有限责任公司、吉铁铁合金有限责任公司、冶金工业信息标准研究院

Drafting Persons:

田琼、杨树洁、徐杰、徐萃、叶金燕、徐金龙、洪武兴、曹越、刘曙、管嵩、马宁、刘冰、范玉、卢春生、刘艳婷

Word Count: 27 Thousand words Pages: 20 pages

Replace the following standards

GB/T 14949.7-1994 Manganese ores—Determination of sodium and potassium contents

Referenced Standards

GB/T 2011-1987 Method of sampling and sample preparation of manganese ores in bulk GB/T 6379.1-2004 Accuracy(trueness and precision)of measurement methods and results—Part 1:General principles and definitions 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 7728-2021 Chemical analysis of metallurgical products—General rule for flame atomic absorption spectrometric 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 GB/T 14949.8-1994 Manganese ores—Determination of hygroscopic moisture content in analytical samples GB/T 14949.8-2018 Manganese ores—Determination of hygroscopic moisture content—Gravimetric method

Adopt standards

ISO 7969:1985

Related Standards

GB/T 1506-2002 Replaced

GB/T 1506-2002 Manganese ores—Determination of manganese content—Potentiometric method and ammonium iron (II) sulphate titrimetric method

Publish Date: 2002-09-11

GB/T 1508-2002 Active

GB/T 1508-2002 Manganese ores—Determination of total iron content—Potassium dichromate titrimetric method and 1,10-phenanthroline spectrophotometric method

Publish Date: 2002-09-11

GB/T 1515-2002 Active

GB/T 1515-2002 Manganese ores—Determination of phosphorus content—Phosphomolybdenum blue spectrophotometric method

Publish Date: 2002-09-11

GB/T 1510-2006 Replaced

GB/T 1510-2006 Manganese ores—Determination of aluminium content—EDTA titrimetric method

Publish Date: 2006-03-02

GB/T 1507-2006 Active

GB/T 1507-2006 Manganese Ores—Determination of active oxygen content—Potassium dichromate titrimetric method

Publish Date: 2006-09-12

GB/T 1509-2006 Replaced

GB/T 1509-2006 Manganese ores—Determination of silicon content—Perchloric acid dehydration gravimetric method

Publish Date: 2006-09-12