GB/T 27692-2024 (GB/T 27692-2011) PDF English
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Iron pellets for blast furnaces
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GB/T 27692-2011: Acidity iron pellet for blast furnace---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT27692-2011
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 73.060.10
D 31
Acidity Iron Pellet for Blast Furnace
Issued on: DECEMBER 30, 2011
Implemented on: OCTOBER 01, 2012
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative References... 4
3 Terms and Definitions... 5
4 Technical Requirements... 6
5 Test Methods... 6
6 Inspection Rules... 7
7 Packaging, Transportation, Storage and Quality Certificate... 8
Acidity Iron Pellet for Blast Furnace
1 Scope
This Standard specifies the terms and definitions, technical requirements, test
methods, inspection rules, packaging, transportation and quality certificates of acidity
iron pellets for blast furnace.
This Standard is applicable to acidity iron pellets for blast furnaces (hereinafter referred
to as iron pellets, the same as below) produced from iron ore concentrates or iron ore
powders.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 1361 Analytical Methods of Iron Ores - Generality and Common Rules
GB/T 6730.5 Iron Ores - Determination of Total Iron Content – Titanium (Ⅲ)
Chloride Reduction Methods
GB/T 6730.9 Iron Ores - Determination of Silicon Content - Silicomolybdic Blue
Spectrophotometric Method Reduced by Ammonium Ferrous Sulfate
GB/T 6730.11 Iron Ores - Determination of Aluminum Content - EDTA Titrimetric
Method
GB/T 6730.17 Iron Ores - Determination of Sulfur Content - Combustion
Iodometric Method
GB/T 6730.18 Iron Ores - Determination of Phosphorus Content - Molybdenum
Blue Spectrophotometric Method
GB/T 6730.62 Iron ores - Determination of Calcium, Silicon, Manganese, Titanium,
Phosphorus, Magnesium, Aluminum and Barium Content - Wavelength Dispersive
X-Ray Fluorescence Spectrometric Method
GB/T 10322.1 Iron Ores - Sampling and Sample Preparation Procedures
5.4 The analysis of phosphorus content in pellets shall be carried out in accordance
with provisions of GB/T6730.18.
5.5 The analysis of aluminum oxide content in pellets shall be conducted in accordance
with provisions of GB/T 6730.11.
5.6 The analysis of calcium oxide content and magnesium oxide content in pellets shall
be conducted in accordance with the provisions of GB/T 6730.62.
5.7 The reduction swelling index shall be determined in accordance with provisions of
GB/T 13240.
5.8 The reduction index shall be determined in accordance with provisions of GB/T
13241.
5.9 The low-temperature reduction degradation index shall be determined in
accordance with the provisions of GB/T 13242.
5.10 The tensile strength shall be determined in accordance with provisions of GB/T
14201.
5.11 The tumbler strength and abrasion resistance index shall be determined in
accordance with the provisions of YB/T 5166.
5.12 The particle size and sieving index shall be determined in accordance with
provisions of GB/T 10322.7.
6 Inspection Rules
6.1 Sampling and sample preparation methods of pellets shall be conducted in
accordance with provisions of GB/T10322.1.
6.2 Pellet products with the same variety, the same supplier and the same arriving time
shall be regarded as an inspection lot every 3000t; and pellet products of less than
3000t are also regarded as an inspection lot.
6.3 The following items are the routine inspection items such as total iron content,
silicon dioxide content, sulfur content, phosphorus content, tensile strength, and
sieving index.
6.4 The following items shall be regularly inspected or randomly selected by the
supplier and the purchaser through negotiation, such as particle-grade, tumbler
strength, abrasion resistance index, and metallurgical performance indicators.
6.5 When the purchaser has any objection to quality, it shall be resolved through
consultation between the supplier and the purchaser.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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