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ASTM C737-22

Current Revision

Standard Specification for Limestone for Dusting of Coal Mines

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1.1 This specification covers pulverized limestone suitable for use as dust in coal mines to reduce risk of coal dust explosions.

Note 1: Pulverized limestone can serve as a source of incombustible material in coal mine operations. Limestone is dusted onto coal exposures in sufficient amount so that the incombustible content of the combined coal dust, rock dust, other dust, and moisture shall not be less than 80 % of all loose dust (MSHA 30 CFR 75.403). With such a concentration of limestone incombustible material, dust explosions cannot initiate or be propagated from nearby gas explosions. The limestone must be substantially dry in order to dust satisfactorily.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


This specification covers limestone suitable for use as dust in coal mines to prevent coal dust explosions. The limestone shall conform to the chemical composition requirements prescribed. The chemical analysis and the particle size analysis of the limestone shall be conducted.


SDO ASTM: ASTM International
Document Number C737
Publication Date July 1, 2022
Language en - English
Page Count 3
Revision Level 22
Supercedes
Committee C07.02
Publish Date Document Id Type View
July 1, 2022 C0737-22 Revision
Dec. 1, 2013 C0737-13 Revision
Dec. 1, 2008 C0737-08 Revision
Dec. 10, 2002 C0737-02 Revision
June 10, 1997 C0737-97 Revision