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

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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

Pages: 20 pages

Scope

This document specifies the method for determining the content of sodium and potassium in manganese ores by flame atomic absorption spectrometry.
This document is applicable to the determination of the content of sodium and potassium in manganese ores. The determination range of sodium (mass fraction): 0.02% to 0.90%; the determination range of potassium (mass fraction): 0.05% to 3.00%.

Development Information

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

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

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GB/T 1509-2006 Replaced

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