GB/T 478-2008 English PDFUS$369.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 478-2008: Method for float and sink analysis of coal Status: Valid GB/T 478: Historical versions
Basic dataStandard ID: GB/T 478-2008 (GB/T478-2008)Description (Translated English): Method for float and sink analysis of coal Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: D27 Classification of International Standard: 73.040 Word Count Estimation: 16,163 Date of Issue: 2008-08-07 Date of Implementation: 2009-03-01 Older Standard (superseded by this standard): GB/T 478-2001; GB/T 19092-2003 Quoted Standard: GB 474 Adopted Standard: ISO 7936-1992, MOD Regulation (derived from): National Standard Approval Announcement 2008 No.12 (Total No.125) 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 ups and downs of coal samples tested, drifting laboratory, equipment and apparatus (apparatus), heavy liquid formulation, trial preparation, test procedure, analysis and test results of the project and finishing. This standard applies to bituminous coal and anthracite, lignite can reference implementation. GB/T 478-2008: Method for float and sink analysis of coal---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.Method for float and sink analysis of coal ICS 73.040 D27 National Standards of People's Republic of China Replacing GB/T 478-2001, GB/T 19092-2003 Coal drifting Test Method (ISO 7936.1992, Hardcoal-Determinationandpresentationoffloatand apparatusandprocedures, MOD) Posted 2008-08-07 2009-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis revised standard adopts ISO 7936.1992 "Determination of hard coal properties and drifting --- --- instruments and procedures represent a general guide." This standard is based on ISO 7936.1992 redrafted. For ease of comparison, the information in Appendix A lists the provisions of this national standard Standard Terms and international control list. Consider China's national conditions, in the use of ISO 7936.1992 doing some changes to the qualitative description of the steps described in the technical A single vertical line marked difference in terms of what they involve margin. Technical differences and their reasons are given in Appendix B The list for reference. For ease of use, this standard also made the following editorial changes. a) "this International Standard" be replaced by "this standard"; b) Remove the foreword and introduction of international standards. This standard replaces GB/T 478-2001 "coal drifting test method" and GB/T 19092-2003 "pf drifting test methods." This standard and GB/T 478-2001 and major changes GB/T 19092-2003, compared as follows. --- Added "big ups and downs" and "small drifting" is defined; --- Verify the quality of the test sample before and after the test results of the accuracy of the difference from 2% to 1%; --- Revised verify the accuracy of the test results of coal ash content greater than or equal to 15% of the formula; --- Increased in Appendices A and B. The Standard Appendix A, Appendix B, Appendix C, Appendix D is an informative annex. The standard proposed by China Coal Industry Association. This standard coal by the National Standardization Technical Committee (SAC/TC42) centralized. This standard was drafted. Tangshan Coal Science Research Institute. The main drafters of this standard. Yangjun Li, Xing Yumei, Cao Xue-Zhang, Lize Pu, Wenhua, Zhang Shao. This standard replaces the standards previously issued as follows. --- GB/T 478-1964, GB/T 478-1980, GB/T 478-1987, GB/T 478-2001. --- GB/T 19092-2003. Coal drifting Test Method1 ScopeThis standard specifies the coal samples, drifting laboratories, equipment (instruments) and instruments, heavy liquid coal preparation drifting test, test preparation, test step Sudden, laboratory analysis and results of the project finishing. This standard applies to bituminous coal and anthracite, lignite can reference implementation.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Can you use the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB 474 coal sample preparation method (GB 474-1996, eqv ISO 1988. 1975)3 Terms and DefinitionsThe following terms and definitions apply to this standard. 3.1 Drifting test in particle size greater than 0.5mm of coal carried out. 3.2 Drifting test of particle size less than 0.5mm of coal carried out.4 coal4.1 General 4.1.1 coal sample preparation should meet the requirements of GB 474. 4.1.2 drifting coal quality tests determined depending on the pilot projects. 4.2 Great drifting 4.2.1 Coal Each grain of coal rank coal samples see Table 1 minimum mass execution. Table 1 given grain size minimum quality coal Grain size upper/mm minimum mass/kg grain size upper/mm minimum mass/kg 7.5 4.2.2 Coal Products 4.2.2.1 coal, coal and waste rock due to the uneven distribution of the density of the composition (concentrated in certain density level), in order to ensure correct test results and each secret Degree level sufficient sample for analysis, the required coal quality should be increased, increasing the amount of generally greater than 50% Table 1 given amount. 4.2.2.2 Material flows through a sorting operation should be as fast as sampling, testing. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 478-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 478-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 478-2008?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 478-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
