GB/T 6730.71-2014Iron ores -- Determination of acid-soluble iron (II) content -- Titrimetric method (English PDF)
铁矿石 酸溶亚铁含量的测定 滴定法
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Issued by
Standardization Administration of China
Level / Type
National · Recommended
Issue date
June 9, 2014
Implementation date
January 1, 2015
Scope
GB/T 6730.71-2014 is the English-translated version of 铁矿石 酸溶亚铁含量的测定 滴定法.
GB/T 6730.71-2014 — GB/T 6730 provisions of this part of the determination of iron content titration. This section applies to the determination of natural and processed iron ore ferrous content measurement range (mass fraction).
0.2% to 28.0%. This method is only suitable for GB/T 24515 or GB/T 24189 stipulated in reducing the ore used in the test, the sulfur content does not apply to large Than 0.3%, or more than 5.0% of free carbon-containing ore.
Tests showed that reducing test method precision to meet the requirements, the acid-insoluble residue Slag can be ignored.
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Document preview — GB/T 6730.71-2014
National Standard of the People's Republic of China
- ICS
- 73.060.10
- Classification
- D 31
Issued by: Standardization Administration of China
Contents
- What this standard covers1
- Document data2
- Standards quoted by this document3
What this standard covers
This Standard specifies the determination of iron content titration. This Standard applies to the determination of natural and processed ferrous iron content, the measurement range (mass fraction): 0. 2% - 28. 0%. This method is only adapted to GB/T 24515
Document data
International classification (ICS): 73.060.10.
Chinese classification (CCS): D31.
Estimated length of the Chinese original: 11,178 words.
Adopted international standard: ISO 9035-1989, MOD.
Standards quoted by this document
GB/T 6379.2; GB/T 6682; GB/T 6730.1; GB/T 8170; GB/T 10322.1; GB/T 12805; GB/T 24189; GB/T 24515; ISO 4791-1; GB/T 12806; GB/T 12808
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 6379.2Measurement methods and results -- Accuracy (trueness and precision) -- Part 2: Determine the standard methods of measurement repeatability and reproducibility of the basic method
- GB/T 6379.2-2004Measurement methods and results -- Accuracy (trueness and precision) -- Part 2: Determine the standard methods of measurement repeatability and reproducibility of the basic method
- GB/T 6682Water for analytical laboratory use - Specification and test methods
- GB/T 6682-2008Water for analytical laboratory use - Specification and test methods
- GB/T 6730.1Iron ores -- Preparation of pre-dried test samples for chemical analysis
- GB/T 6730.1-1986Iron ores -- Preparation of pre-dried test samples for chemical analysis
ISO 5725 · ISO 3696 · ISO 7764 · ISO 3082 · ISO 385 · ISO 1042 · ISO 648 · GB/T 24189-2009 · GB/T 24189 · ISO 4695 · ISO 4791
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Related Standards
GB/T 10322.1-2023 — Iron ores - Sampling and sample preparation procedures
GB/T 12805-2011 — Laboratory glassware -- Burettes
GB/T 12806-2011 — Laboratory glassware -- One-mark volumetric flasks
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GB/T 6730.71-2014
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