CNS 6939-1981
Quality Standard of Rock Dust Used in Coal Mines (English Version)

Standard No.
CNS 6939-1981
Language
Chinese, Available in English version
Release Date
1981
Published By
Taiwan Provincial Standard of the People's Republic of China
Latest
CNS 6939-1981
Scope
This standard applies to the quality of stone powder dispersed in coal mine pits containing flammable gas, coal dust, mixed dust explosions or risk of explosion propagation, and stone powder accumulated in stone powder sheds, or used in bags.

CNS 6939-1981 history

  • 1981 CNS 6939-1981 Quality Standard of Rock Dust Used in Coal Mines
Quality Standard of Rock Dust Used in Coal Mines



Copyright ©2024 All Rights Reserved