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GB/T 20475.3-2012: Classification for content of harmful elements in coal -- Part 3: Arsenic
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 20475.3-2012 | English | 78 |
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Classification for content of harmful elements in coal -- Part 3: Arsenic
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GB/T 20475.3-2012
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Basic data | Standard ID | GB/T 20475.3-2012 (GB/T20475.3-2012) | | Description (Translated English) | Classification for content of harmful elements in coal -- Part 3: Arsenic | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D20 | | Classification of International Standard | 73.040 | | Word Count Estimation | 5,529 | | Quoted Standard | GB 474; GB 475; GB/T 482; GB/T 3058; GB/T 19494.1; GB/T 19494.2; MT/T 988 | | Regulation (derived from) | National Standards Bulletin No. 41 of 2012 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the arsenic content of coal on dry base w (Asd) range classification, nomenclature and code, as well as coal production, processing and utilization of arsenic content requirements. This standard applies to coal exploration, product | GB/T 20475.3-2012: Classification for content of harmful elements in coal -- Part 3: Arsenic---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.
Classification for content of harmful elements in coal Part 3. Arsenic
ICS 73.040
D20
National Standards of People's Republic of China
The content of harmful elements in coal classification - Part 3. Arsenic
Issued on. 2012-12-31
2013-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
The standard proposed by China Coal Industry Association.
This standard coal by the National Standardization Technical Committee (SAC/TC42) centralized.
This standard was drafted. Coal Research Institute Beijing Coal Chemical Research Branch.
The main drafters of this standard. even Beijing, Bai Xiangfei, Jiang Ying, Fu Cong, Shao many have suggested.
The content of harmful elements in coal classification - Part 3. Arsenic
1 Scope
This standard specifies the coal by dry basis arsenic content w (Asd) range classification, name and code, as well as coal production, processing and utilization of
Arsenic content requirements.
This standard applies to coal exploration, production, processing, marketing and utilization.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB 474 coal sample preparation
GB 475 commercial coal artificial method adopted
GB/T 482 Seam coal sampling method
GB/T 3058 Determination of Arsenic in Coal
GB/T 19494.1 coal mechanization sampling - Part 1. Sampling
GB part/T 19494.2 coal mechanization sampling 2. Preparation of coal sample
MT/T 988 production of coal sampling method
3 coal arsenic content classification, nomenclature and code
Arsenic content in coal classification, nomenclature and the code shown in Table 1.
Table 1 Classification of arsenic in coal
Level Name Code arsenic content in the range w (Asd)/(μg/g)
Special low-arsenic coal As-1 ≤4
Low-arsenic coal As-2 > 4 ~ 25
Arsenic in coal As-3 > 25 ~ 80
High arsenic coal As-4 > 80
4 coal production, processing and use of arsenic content requirements
4.1 of arsenic in coal power requirements
Power coal arsenic content w (Asd) should not exceed 80μg/g.
4.2 coking coal arsenic content requirements
Coking coal arsenic content w (Asd) should not exceed 35μg/g.
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