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GB/T 42524-2023: Iron ore fines in bulk - Determination of transportable moisture limits - Compaction curve test procedure
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 42524-2023 | English | 309 |
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Iron ore fines in bulk - Determination of transportable moisture limits - Compaction curve test procedure
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GB/T 42524-2023
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Basic data | Standard ID | GB/T 42524-2023 (GB/T42524-2023) | | Description (Translated English) | Iron ore fines in bulk - Determination of transportable moisture limits - Compaction curve test procedure | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D31 | | Classification of International Standard | 73.060.10 | | Word Count Estimation | 16,178 | | Date of Issue | 2023-05-23 | | Date of Implementation | 2023-12-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 42524-2023: Iron ore fines in bulk - Determination of transportable moisture limits - Compaction curve test procedure
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS73:060:10
CCSD31
National Standards of People's Republic of China
Determination of transportable moisture limit for bulk iron ore fines
compaction curve method
Released on 2023-05-23
2023-12-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
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 for Standardization Documents"
to be drafted:
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed by 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 is drafted by: China Inspection and Certification Group Fujian Co:, Ltd:, Qingdao Yaoxin Intelligent Technology Co:, Ltd:, Fangge Testing Technology (Qingdao
Island) Co:, Ltd:, Yantai Inspection and Certification Co:, Ltd:, Rizhao Quality Inspection and Testing Research Institute, and Metallurgical Industry Information Standard Research Institute:
The main drafters of this document: Bai Lizhou, Wang Cunbao, Chen Ningjie, Huang Xiaodong, Lu Qi, Ruan Guodong, Yu Shuangmin, Ma Yunrong, Lin Liu, Lin Qian,
Tang Gongwei, Zhao Kui, Meng Leilei, Xiao Yuping, Zhu Rong:
Determination of transportable moisture limit for bulk iron ore fines
compaction curve method
Caution --- Personnel using this document should have practical experience in formal laboratory work: This document does not address all possible security issues
Therefore, the user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in relevant national laws and regulations:
1 Scope
This document describes the compaction curve method for determining the transportable moisture limit (TML) of bulk iron ore fines:
This document is applicable to the determination of the transportable moisture limit of iron ore meeting the following two conditions at the same time:
a) The mass fraction of delivery batch with particle size less than 1mm is greater than or equal to 10%;
b) The mass fraction of the delivery batch with particle size less than 10mm is greater than or equal to 50%:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
GB/T 6379:1 Accuracy of measurement methods and results (trueness and precision) Part 1: General principles and definitions
GB/T 6379:2 Accuracy of measurement methods and results (trueness and precision) - Part 2: Determination of repeatability of standard measurement methods
Fundamental methods of sex and reproducibility
GB/T 6730:2 Gravimetric method for determination of moisture content in iron ore
GB/T 8170 Numerical rounding off rules and expression and determination of limit values
GB/T 10322:1 Iron ore sampling and sample preparation methods
GB/T 10322:7 Sieve Determination of Particle Size Distribution of Iron Ore and Direct Reduced Iron
GB/T 20565 Terminology of iron ore and direct reduced iron
GB/T 24586 Determination of Apparent Density, True Density and Porosity of Iron Ore
3 Terms and Definitions
The following terms and definitions defined in GB/T 20565 apply to this document:
3:1
flow state
The sample reaches a state of plastic flow:
Note: When the liquid in a large amount of granular matter is saturated to a certain extent, due to the influence of external factors such as vibration, impact or ship swaying, it will lose its internal shear resistance:
Intensity and presents the same characteristics as a liquid:
3:2
When transported by non-specific ships, the maximum moisture content of bulk iron ore fines can be safely transported:
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