GB/T 14949.12-2021 Active National standards

GB/T 14949.12-2021 Manganese ores—Determination of combined water content—Gravimetric method

Publish Date: 2021-05-21 Implement Date: 2021-12-01 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 14949.12-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Manganese ore

ICS Name: Manganese ore

Publish Date: 2021-05-21

Implement Date: 2021-12-01

Pages: 12 pages

Scope

This document specifies the determination of the water of hydration content in manganese ores by the gravimetric method. This document is applicable to the determination of the water of hydration content in manganese ores, with a determination range (mass fraction) of 1.00% to 8.00%.

Development Information

Word Count: 25 Thousand words Pages: 12 pages

Same series standard

GB/T 14949.2-2021 Manganese ores—Determination of nickel content—Flame atomic absorption spectrometric method GB/T 14949.5-2021 Manganese ores—Determination of titanium content—Diantipyrylmethane spectrophotometric method GB/T 14949.6-2021 Manganese ores—Determination of copper,lead and zinc content—Flame atomic absorption spectrometric method GB/T 14949.11-2021 Manganese ores—Determination of carbon content—Gravimetric method and infrared absorption method

Replace the following standards

GB/T 14949.12-1994 Manganese ores—Determination of combined water content

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 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

Adopt standards

ISO 549:1981

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