ASTM International - ASTM C737-97
Standard Specification for Limestone for Dusting of Coal Mines
| Organization: | ASTM International |
| Publication Date: | 10 June 1997 |
| Status: | inactive |
| Page Count: | 1 |
| ICS Code (Non-metalliferous minerals): | 73.080 |
scope:
1.1 This specification covers limestone suitable for use as dust in coal mines to prevent coal dust explosions.
Note-In coal mine operations, limestone is dusted onto coal exposures in sufficient amount so that not less than 65% of all loose dust shall be limestone. With such a concentration of limestone, explosions cannot initiate or be propagated from nearby gas explosions. The limestone must be substantially dry in order to dust satisfactorily.
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