SN/T 1072: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 1072-2011 | English | 399 |
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Test method for proximate analysis of coal for import and export by instrumental procedures
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SN/T 1072-2011
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| SN/T 1072-2002 | English | 439 |
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Method for proximate analysis of coal for export. By instrumental procedures
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SN/T 1072-2002
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PDF similar to SN/T 1072-2011
Basic data | Standard ID | SN/T 1072-2011 (SN/T1072-2011) | | Description (Translated English) | Test method for proximate analysis of coal for import and export by instrumental procedures | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | D21 | | Classification of International Standard | 73.040 | | Word Count Estimation | 10,183 | | Date of Issue | 2011-02-25 | | Date of Implementation | 2011-07-01 | | Older Standard (superseded by this standard) | SN/T 1072-2002 | | Quoted Standard | GB/T 212; GB/T 215; GB 474; GB 475; GB/T 483; GB/T 3715; GB/T 19494.1; GB/T 19494.2 | | Adopted Standard | ASTM D5142-2004, MOD | | Regulation (derived from) | National-Quality-Inspection-accreditation (2011) 90 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the method of thermal gravimetric analyzer import and export of industrial analysis of coal. This standard applies to the import and export of coal moisture, Ash, determination of volatile and fixed carbon. Measuring range: Moisture: (0. 2% to 27. 9%), ash (dry basis) | SN/T 1072-2011: Test method for proximate analysis of coal for import and export by instrumental procedures
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Test method for proximate analysis of coal for import and export by instrumental procedures
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Instead of the SN/T 1072-2002
Import and export of coal industry analysis instrument method
(ASTMD5142-04, Standardtestmethodsforproximateanalysisofthe
analysissampleofcoalandcokebyinstrumentalprocedures, MOD)
Issued on. 2011-02-25
2011-07-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
Instead of the standard SN/T 1072-2002 "Coal Industry Import and Export Analysis Instruments Act."
The standard method used to modify the American Society for Testing Materials industry standard ASTMD5142-04 "coal and coke analysis of samples
Standard Test Method for Analysis --- instrument law, "the main technical content. Appendix B of this standard and the standard ASTMD5142-04
Terms table.
The major changes in comparison with the standard SN/T 1072-2002 phase as follows.
--- Delete the original standard ASTM foreword;
--- 5.6 Precision and Bias modify the method precision and bias of the content included in 5.7;
--- Formula (5) content to (10) shown in Table 1, as well as original content Appendix B1 in Table 3;
--- Appendix A and Appendix B to delete the original standard;
--- Part of the original standard narrative text made editorial changes.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. Shanxi People's Republic of China Exit Inspection and Quarantine.
The main drafters of this standard. Chen Yong, Xue Ping, Song Huan, Fang Hong, Yang Xiaobing, Li Weihua, Kang Jie, Wang Xu, Qu Jun.
This standard superseded standard previously issued as follows.
--- SN/T 1072-2002.
Import and export of coal industry analysis instrument method
1 Scope
This standard specifies the method for determination of thermal gravimetric analysis and export of coal industry analysis.
This standard applies to moisture, ash, volatile matter and fixed carbon in the determination of the import and export of coal. Measurement range. moisture. (0.2% to 27.9%);
Ash (dry basis) .( 6.0% ~ 19.6%); volatile matter (dry basis) (1.0% ~ 50.8%).
For some coal, instrument method specified in this standard and GB/T 212 standard method in the determination of the existence of time-volatile relative bias,
GB/T 212 standard method of determination shall be deemed to arbitration. Thermal instrument method specified in this standard does not apply to sub-microgram sample weight
Analyzer.
This standard does not set forth all of the safety problems, the present standard of responsibility of the user to develop appropriate safety measures before use health, and to make clear
Limit the scope of use.
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.
Analysis Method GB/T 212 coal
Determination of GB/T 215 various forms of sulfur in coal
GB 474 coal sample preparation
GB 475 coal samples of goods taken by artificial methods
GB/T 483 coal analysis test methods - General provisions
GB/T 3715 coal quality and coal analysis related terms
GB/T 19494.1 coal mechanization sampling - Part 1. Sampling
GB part/T 19494.2 coal mechanization sampling 2. Preparation of coal sample
3 Definitions
Terms and definitions GB/T 3715 established applicable to this document.
4 Method summary
Instrument method specified in this standard using computer-controlled thermal analyzer, the coal sample into a crucible inside the instrument, the instrument starts analytical process
Order, the order can be determined moisture, volatile matter and ash. 100% fixed carbon and moisture, ash and volatile and points of difference.
This standard specifies the method of the instrument measured water content of air-dry basis moisture, it can be used in accordance with the method of GB/T 483 other provisions
The results in terms of the other group.
5 Reagents and materials
5.1 Nitrogen (purity > 99.5%, moisture content ≤1.9mg/L).
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