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GB/T 10322.9-2023: Iron ores - Determination of specific surface area - Test method using air-permeability apparatus(Blaine)
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Iron ores - Determination of specific surface area - Test method using air-permeability apparatus(Blaine)
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GB/T 10322.9-2023
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Basic data | Standard ID | GB/T 10322.9-2023 (GB/T10322.9-2023) | | Description (Translated English) | Iron ores - Determination of specific surface area - Test method using air-permeability apparatus(Blaine) | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D31 | | Classification of International Standard | 73.060.10 | | Word Count Estimation | 14,113 | | Date of Issue | 2023-09-07 | | Date of Implementation | 2024-04-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 10322.9-2023: Iron ores - Determination of specific surface area - Test method using air-permeability apparatus(Blaine)
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ICS 73.060.10
CCSD31
National Standards of People's Republic of China
Determination of specific surface area of iron ore
Bertrand Breathing Method
(ISO 21283.2018,IDT)
Published on 2023-09-07
2024-04-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document is Part 9 of GB/T 10322.GB/T 10322 has published the following parts.
---Iron ore sampling and sample preparation methods;
---Experimental methods for evaluating quality fluctuations of iron ore;
---Experimental method for checking sampling precision of iron ore;
---Experimental methods for checking sampling deviations in iron ore;
---Determination of moisture content of iron ore delivery batches;
---Determination of thermal cracking index of iron ore used as blast furnace charge;
---Screening determination of particle size distribution of iron ore and direct reduced iron;
---Single-point determination of iron ore specific surface area by nitrogen adsorption method;
--- Determination of iron ore specific surface area by the Breton permeability method.
This document is equivalent to ISO 21283.2018 "Determination of specific surface area of iron ore - Breton method".
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed by the China Iron and Steel Industry Association.
This document is under the jurisdiction of the National Iron Ore and Direct Reduced Iron Standardization Technical Committee (SAC/TC317).
This document was drafted by. Ningbo Institute of Inspection and Quarantine Science and Technology, Zhangjiagang Baikun Materials Co., Ltd., Shaoxing Shangyu Hongxing Machinery
Mechanical Instrument Manufacturing Co., Ltd., Maanshan Metrology and Testing Institute, Xiamen Weihaotai Technology Co., Ltd., Beilun Customs, Ningbo Customs Technology Center
Center, Ningbo Metrology and Testing Institute, Panxi Vanadium and Titanium Inspection and Testing Institute, Metallurgical Industry Information Standards Institute, Chongqing University of Science and Technology.
The main drafters of this document. Liao Haiping, Yang Zhihao, Yu Dongyue, Yang Hui, Zhang Guanlai, Chen Jin, Zhang Li, He Shenda, Zhang Zhihuan, Liu Dong, Yang Jiawang,
Yu Dong, Fu Ranran, Chen Hehai, Shi Jianghuan, Sun Hao, Li Zijing, Zhu Rong, Dai Qingwei.
Introduction
Iron ore is the main raw material of the steel industry. In the steel field standard system, a series of standards for iron ore sampling, sample preparation, and physical test methods are
Accuracy is a very important part and plays an important role in ensuring the quality of iron ore products. This series of method standards serve iron ore
The production, trade and application of stone provide technical support for the high-quality development of my country's steel industry.
The GB/T 10322 series of standards respectively stipulates sampling and sample preparation methods, experimental methods for assessing quality fluctuations, and methods for checking sampling precision.
Experimental methods, experimental methods for checking sampling deviations, determination of moisture content of delivery batches, determination methods of thermal cracking index, screening test of particle size distribution
Single-point determination method of specific surface area (nitrogen adsorption method), determination method of specific surface area (Bureau's gas permeability method).
In.2000, GB/T 10322 released a series of five national standards for iron ore sampling and preparation for the first time. With the development of technology in the iron ore field and
Based on the actual needs of production, through the formulation and revision of the standards, a series of standards consisting of 9 parts has been formed.
---Iron ore sampling and sample preparation methods;
---Experimental methods for evaluating quality fluctuations of iron ore;
---Experimental method for checking sampling precision of iron ore;
---Experimental methods for checking sampling deviations in iron ore;
---Determination of moisture content of iron ore delivery batches;
---Determination of thermal cracking index of iron ore used as blast furnace charge;
---Screening determination of particle size distribution of iron ore and direct reduced iron;
---Single-point determination of iron ore specific surface area by nitrogen adsorption method;
--- Determination of iron ore specific surface area by the Breton permeability method.
Determination of specific surface area of iron ore
Bertrand Breathing Method
Warning---This document may involve the use of hazardous materials, operations, and equipment. This document does not address all security issues related to this
Suggestions are made on all issues. The user is responsible for using appropriate security and protective measures before using this document.
1 Scope
This document describes a test method for the determination of the specific surface area of iron ore using the Breton gas permeability tester.
This document is suitable for measuring the specific surface area of pellet materials. The measuring range is. 400cm2/g~2500cm2/g.
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
Note. GB/T 10322.1-2023 Iron ore sampling and preparation methods (ISO 3082.2017, IDT)
Note. GB/T 20565-2022 Iron ore and direct reduced iron terminology (ISO 11323.2010, IDT)
Note. GB/T 40401-2021 Measuring skeletal density gas volume displacement method (ISO 12154.2014, IDT)
3 Terms and definitions
The terms and definitions defined in ISO 11323 and below apply to this document.
3.1
Blaine surface area; BSA
The total surface area per unit mass of pellets.
Note. Usually expressed in cm2/g.
3.2
Pellets peletfeed
Iron ore concentrate for pellet production.
Note. Usually contains at least 80% particles with a particle size less than 0.150mm.
3.3
skeletondensity
The ratio of the sample mass to the sample volume, where the sample volume includes the particle closed pore volume (if present), but does not include the particle open pore volume
and the gaps between particles.
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