Description
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.
Product Details
- Published:
- 07/01/2022
- Number of Pages:
- 3
- File Size:
- 1 file , 250 KB
- Note:
- This product is unavailable in Russia, Ukraine, Belarus
