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ASTM C737-13 + Redline
Standard Specification for Limestone for Dusting of Coal MinesMore info
1.1 This specification covers limestone suitable for use as dust in coal mines to reduce risk of coal dust explosions.
Note 1—Limestone can serve as a source of incombustible material 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 incombustible material. In return air courses the concentration of incombustible materials should be not less than 80 % of the total 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.
| Author | ASTM |
|---|---|
| Editor | ASTM |
| Document type | Standard |
| Format | File |
| ICS | 73.080 : Non-metalliferous minerals |
| Number of pages | 2 |
| Replace | ASTM C737-08 + Redline |
| Set | ASTMVOL0401 |
| Year | 2013 |
| Document history | ASTM C737-08 + Redline |
| Country | USA |
| Keyword | ASTM 737;ASTM C737;ASTM C737;10.1520/C0737-13 |