Standard No.:	GB/T 5447-2014
English Name:	Determination of caking index for bituminous coal
Chinese Name:	烟煤黏结指数测定方法
Chinese Classification:	D21    Coal analysis methods
Professional Classification:	GB    National Standard
Issued by:	AQSIQ; SAC
Issued on:	2014-06-09
Implemented on:	2014-10-1
Status:	valid
Superseding:	GB/T 5447-1997 Determination of caking index of bituminous coal
Language:	English
File Format:	PDF
Word Count:	8000 words
Price(USD):	130.0
Delivery:	via email in 1 business day

1 Scope This standard specifies principle, reagents and materials, apparatus, coal sample, test procedure, expression of result, method precision and test report for determination of caking index for bituminous coal. This standard is applicable to bituminous coal. 2 Normative References The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB 474 Method for Preparation of Coal Sample GB/T 483 General Rules for Analytical and Testing Methods of Coal GB/T 14181 Specifications of Anthracite for Determination of Caking Index of Bituminous Coal 3 Principle A portion of prepared sample of coal of limited size range and the standard anthracite are mixed under defined conditions, and the mixture is carbonized rapidly. The crucible coke thus obtained is tested for strength in a drum conforming to certain specifications. The caking power of the test sample is expressed by the abrasive strength, i.e. resistance to breakage of the crucible coke. 4 Material

Foreword II 1 Scope 2 Normative References 3 Principle 4 Material 5 Apparatus 6 Coal Sample 7 Test Procedure 8 Expression of Result 9 Method Precision 10 Test Report Annex A (Informative) Comparison List of Clauses in This Standard and the Equivalent Clauses in ISO 15585:2006 Annex B (Informative) Technical Deviations and Their Justifications between This Standard and ISO 15585:2006