1.1 This standard covers the classification of coals by rank, that is, according to their degree of metamorphism, or progressive alteration, in the natural series from lignite to anthracite.
Product Details
- Published:
- 11/01/2019
- Number of Pages:
- 8
- File Size:
- 1 file , 140 KB
- Redline File Size:
- 2 files , 260 KB
