GB/T 6730.68-2009 Active National standards

GB/T 6730.68-2009 Iron ores—Determination of loss on ignition—Gravimetric method

GB/T 6730.68-2009 Iron ores—Determination of loss on ignition—Gravimetric method

Publish Date: 2009-10-30 Implement Date: 2010-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 6730.68-2009

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Iron ore

ICS Name: Iron ore

Publish Date: 2009-10-30

Implement Date: 2010-05-01

Pages: 5 pages

Scope

This part of GB/T 6730 specifies the determination of the loss on ignition (LOI) in iron ore by the weight method.
This part is applicable to the determination of the loss on ignition in natural iron ore, iron concentrate, and sintered ore. The determination range (mass fraction): -10.0% to 12.0%.
This part is not applicable to processed ores containing metallic iron, or natural or processed ores with a sulfur content greater than 0.2% (mass fraction).

Development Information

Word Count: 6 Thousand words Pages: 5 pages

Same series standard

GB/T 6730.65-2009 Iron ores—Determination of total iron content—Titanium(Ⅲ) chloride reduction potassium dichromate titration methods(routine methods) GB/T 6730.66-2009 Iron ores—Determination of total iron content—Automatic potentiometric titration method GB/T 6730.67-2009 Iron ores—Determination of arsenic content—Hydride generation atomic absorption spectrometric method

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 6730.1-1986 Methods for chemical analysis of iron ores—Preparation of predried test samples for chemical analysis GB/T 6730.1-2016 Iron ores—Preparation of predried test samples for chemical analysis 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 10322.1-2000 Iron ores—Sampling and sample preparation procedures GB/T 10322.1-2014 Iron ores—Sampling and sample preparation procedures GB/T 10322.1-2023 Iron ores—Sampling and sample preparation procedures GB/T 20565-2006 Iron ores and direct reduced iron—Vocabulary GB/T 20565-2022 Iron ores and direct reduced iron—Vocabulary

Related Standards

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GB/T 10322.2-2000 Active

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GB/T 10322.3-2000 Replaced

GB/T 10322.3-2000 Iron ores—Experimental methods for checking the precision of sampling

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GB/T 10322.4-2000 Replaced

GB/T 10322.4-2000 Iron ores—Experimental methods for checking the bias of sampling

Publish Date: 2000-06-05

GB/T 10322.5-2000 Replaced

GB/T 10322.5-2000 Iron ores—Determination of moisture content of a consignment

Publish Date: 2000-06-05