Standard No.:	GB/T 4633-2014
English Name:	Determination of fluorine in coal
Chinese Name:	煤中氟的测定方法
Chinese Classification:	D21    Coal analysis methods
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ; SAC
Issued on:	2014-06-09
Implemented on:	2014-10-1
Status:	valid
Superseding:	GB/T 4633-1997 Determination of fluorine in coal
Target Language:	English
File Format:	PDF
Word Count:	3000 words
Translation Price(USD):	60.0
Delivery:	via email in 1 business day

1 Scope This Standard specifies the method summary, reagents and materials, apparatus and equipment, determination procedures, result calculation and method precision, and test report etc., of determining fluorine content in coal by high temperature combustion hydrolysis-fluorion selective electrode (hereinafter referred to as fluorine electrode) method. This Standard applies to brown coal, bituminous coal and anthracite. 2 Normative References The following referenced documents are indispensable for application of this document. For dated references, only the dated edition applies. For undated references, the latest edition (including any amendments) applies to this document. GB/T 483 General Rules for Analytical and Testing Methods of Coal GB/T 6682 Water for Analytical Laboratory Use - Specification and Test Methods 3 Method Summary

Foreword I 1 Scope 2 Normative References 3 Method Summary 4 Reagents and Materials 5 Apparatus 6 High Temperature Combustion Hydrolysis of Coal Sample 7 Potential Measurement 8 Result Expression 9 Precision of Method 10 Test Report