GB/T 20565-2022 English PDF

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GB/T 20565-2022: Iron ores and direct reduced iron - Vocabulary
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GB/T 20565: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 20565-2022	684	Add to Cart	6 days	Iron ores and direct reduced iron - Vocabulary	Valid
GB/T 20565-2006	RFQ	ASK	5 days	Iron ores and direct reduced iron -- Vocabulary	Obsolete

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Basic data

Standard ID: GB/T 20565-2022 (GB/T20565-2022)
Description (Translated English): Iron ores and direct reduced iron - Vocabulary
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D31
Word Count Estimation: 39,357
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 20565-2022: Iron ores and direct reduced iron - Vocabulary

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Iron ores and direct reduced iron -- Vocabulary ICS 73.060.10 CCSD31 National Standards of People's Republic of China Replacing GB/T 20565-2006 Iron Ore and DRI Terminology (ISO 11323.2010, IDT) Published on 2022-04-15 2022-11-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document replaces GB/T 20565-2006 "Terminology of Iron Ore and Direct Reduced Iron", compared with GB/T 20565-2006, except for the In addition to structural adjustments and editorial changes, the main technical changes are as follows. a) Added normative references ISO 3310-1 and ISO 3310-2 (see Chapter 2); b) Added the term "sintered pellets" and its definition (see 3.11); c) Chapter 3 revised the definitions of the terms "iron ore", "lumps", "sinter" and "pellets" (see 3.1, 3.3, 3.9, 3.10,.2006 edition) 3.1, 3.3, 3.9, 3.10); d) Chapter 5 added "sample preparation", "minimum mass of reduced large sample", "field sampling", "quantitative sampling", "sampling drill", "auger" and "reference". Terms and definitions such as "method", "reference sample", "quality fluctuation", "precision", "repeatability limit", "Grubbs test" (see 5.8, 5.19, 5.25, 5.29, 5.31~5.38); e) Chapter 5 revised the definitions of the terms "layer", "subsample", "increment sample" and "cut" (see 5.2, 5.5, 5.9, 5.10, 5.2, 5.5, 5.8, 5.9); f) Chapter 6 adds the terms "test sieve", "dry basis", "natural basis", "constant weight", "partial drying", "average particle size", "delivery batch moisture" and other terms and Definition (see 6.11, 6.24~6.29); g) Chapter 6 revised the terms "specification particle size", "nominal maximum particle size", "finest particle size", "manual screening", "auxiliary manual screening", "batch size" Definition of "sieving" and "screening endpoint" (see 6.3, 6.4, 6.8, 6.15, 6.16, 6.18, 6.23, 6.3, 6.4, 6.8, 6.14,.2006 edition, 6.15, 6.17, 6.22); h) Chapter 7 adds terms and definitions such as "air-dried samples", "oven-dried samples", "alkalinity", "static method" and "dynamic method" (see 7.1.7, 7.1.8, 7.2.19, 7.4.12, 7.4.13); i) Chapter 7 revised the terms "bulk density", "apparent density", "apparent volume", "open pores", "closed pores", "mixed ore" and "priming material" "Sintering Return", "Sintering Finished Product", "Drum Strength", "Reduction Degree", "Reduction", "Metalization Rate", "Reduction and Pulverization", "Low-Temperature Reduction and Pulverization" Definitions of "free expansion", "load reduction", "clumping" and "clumping" (see 7.1.1~7.1.5, 7.2.1, 7.2.5, 7.2.13, 7.2.14, 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); j) Deleted the term "wear resistance index" and its definition (see 7.3.2 of the.2006 edition); k) Chapter 8 adds "Certified Reference Material for Iron Ore", "Laboratory Sample", "Drying Base", "Air Drying Base", "Blank Test", "Verification" "Test", "Oxide Coefficient", "Standardization Test", "Precision Test", "Internal Reference Material" and other terms and definitions (see 8.9~ 8.18); l) Chapter 8 revised the definitions of the terms "hygroscopic water", "metallic iron" and "acid-soluble iron (II)" (see 8.1, 8.5, 8.7, 8.1,.2006 edition, 8.5, 8.7); m) The content range of the main elements was deleted, and the "Compendium of Statistical Terms" was added (see Appendix A, Appendix A of the.2006 edition); n) Revised Appendix B (see Appendix B, Appendix B of the.2006 edition). This document is equivalent to ISO 11323.2010 Terminology for iron ore and direct reduced iron. The following minimal editorial changes have been made to this document. --- Additional information in the definition is changed to the definition's note; ---In order to facilitate the application in my country, the Chinese Pinyin index has been added. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Iron and Steel Association. This document is under the jurisdiction of the National Standardization Technical Committee for Iron Ore and Direct Reduced Iron (SAC/TC317). This document is drafted by. Baoshan Iron and Steel Co., Ltd., Shaoxing Shangyu Hongxing Machinery & Instrument Manufacturing Co., Ltd., Metallurgical Industry Information Standards Institute. The main drafters of this document. Chen Hailan, Chu Yongjun, Wang Chunsheng, Sun Liang, Shen Jian, Zhang Guanlai, Chen Jin, Chen Zibin, Zhu Rong, Lin Xuewu, Xu Lubin. This document was first published in.2006 and this is the first revision. Iron Ore and DRI Terminology

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 ironore 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 naturalironore 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. ......

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