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ASTM C737-97
Standard Specification for Limestone for Dusting of Coal Mines
Standard Specification for Limestone for Dusting of Coal Mines
C0737-97
ASTM|C0737-97|en-US
Standard Specification for Limestone for Dusting of Coal Mines
Standard
C737 Standard Specification for Limestone for Dusting of Coal Mines>
new
BOS Vol. 04.01 Committee C07
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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.