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GB/T 20565-2022Iron ores and direct reduced iron - Vocabulary (English PDF)

铁矿石和直接还原铁术语

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

April 15, 2022

Implementation date

November 1, 2022

Scope

GB/T 20565-2022 is the English-translated version of 铁矿石和直接还原铁术语.

GB/T 20565-2022 is the Chinese standard "Iron ores and direct reduced iron - Vocabulary".

Its scope clause reads: This document defines the processes involved in the sampling, preparation, moisture and particle size analysis of iron ore and direct reduced iron, as well as physical testing, chemical analysis terms and definitions, and also include some special analytical terms used in the corresponding international/national standards.

This document applies to iron ore and direct reduced iron. Its clauses include natural and processed iron ore.

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Document preview — GB/T 20565-2022

National Standard of the People's Republic of China

Classification: D 31

Issued by: State Administration for Market Regulation, China National Standardization Administration

3.1, 3.3, 3.9, 3.10);
5.19, 5.25, 5.29, 5.31~5.38);
5.5, 5.8, 5.9);
6.15, 6.17, 6.22);
7.3.1, 7.4.3~7.4.11, 7.1.1~7.1.5, 7.2.1, 7.2.5, 7.2.13, 7.2.14, 7.3.1, 7.4.3~ of the.2006 edition
7.4.11);
8.18);
8.5, 8.7);

1 Scope

This document defines the processes involved in the sampling, preparation, moisture and particle size analysis of iron ore and direct reduced iron, as well as physical testing, chemical analysis terms and definitions, and also include some special analytical terms used in the corresponding international/national standards.

This document applies to iron ore and direct reduced iron.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

ISO 565 Test sieves, basic dimensions of woven wire mesh, perforated plates and electroformed sheet sieves (Testsieves-Metalwire

Note. GB/T 6005-2008 Basic dimensions of test sieve wire woven mesh, perforated plate and electroformed sheet mesh (ISO 565.1990, MOD)

ISO 3310-1 Test sieves - Technical conditions and tests - Part 1.Wire woven mesh test sieves (Testsieves-Technical

Note. GB/T 6003.2-2012 Technical requirements and inspection of test sieves - Part 2.Metal perforated plate test sieves (ISO 3310-2.1999.MOD)

Note. GB/T 6003.1-2012 Technical requirements and inspection of test sieves - Part 1.Wire woven mesh test sieves (ISO 3310-1.2000.MOD)

3 Natural and processed iron ore

3.1 iron ore

Any natural or processed rock, mineral or ore aggregate from which iron can be produced commercially.

Note. Iron ore contains one or several main iron-bearing minerals.

a) reddish-brown hematite, maghemite and pseudohematite;

b) magnetite;

c) hydrated iron oxides, including goethite, limonite and borosite;

d) Iron carbonates, including siderite or nodularite, iron dolomite and other mixed carbonates;

e) roasted pyrite or pyrite slag;

f) Sometimes ferrites (eg calcium ferrite) produced in natural ores, mainly molten pellets and sintered bodies.

Also included (dry basis after heating at 105°C) manganese iron ores and concentrates with manganese content not exceeding 8%.

Excludes the use of pigments, glazes, thick suspension media and other ultra-fine iron-bearing minerals not related to the production of iron and steel.

3.2 natural iron ore

Mined from mines, ore that has not undergone any beneficiation process except for crushing.

Note. This ore is also referred to as drop-ship ore or raw ore.

3.3 lump ore lumpore; orelump

The lower limit of the specified particle size is the ore composed of coarse particles of 10mm~6.3mm.

GB/T 14201 | GB/T 13241 | GB/T 27692 | GB/T 10322.7 | GB/T 24204 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 66 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 565 · ISO 565.1990 · ISO 3310

Cited by

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