GB/T 211-2007: Determination of total moisture in coal

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Scope

This Standard specifies the reagent, apparatus, procedures, result calculation and
precision for the determination of total moisture in coal.
The methods of drying under nitrogen (Method A1 and B1) are applicable to all types
of coals; the method of drying in air (Method A2 and B2) are applicable to bitumite and
blind coal; and the method of drying by microwave is applicable to bitumite and lignite.
Method A1 shall be the arbitration method.

Basic Data

Standard ID	GB/T 211-2007 (GB/T211-2007)
Description (Translated English)	Determination of total moisture in coal
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	D21
Classification of International Standard	73.040
Word Count Estimation	13,143
Date of Issue	2007-11-01
Date of Implementation	2008-06-01
Older Standard (superseded by this standard)	GB/T 211-1996
Quoted Standard	GB 474; GB/T 19494.2; GB/T 212
Adopted Standard	ISO 589-2003, NEQ
Regulation (derived from)	National Standard Approval Announcement 2007 No.12 (Total No.112)
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 total moisture in coal reagents determination, equipment, procedure, outcome for and precision. Dried in a nitrogen flow method (Method A1 and a method B1) for all coal, dried in an air stream into a method (Method A2 and method B2) suitable bituminous coal and anthracite, microwave drying method (Method C) applies bituminous coal and lignite. Arbitration as a method to method A1.