Brown coals and lignites. Determination of yield of toluene-soluble extract and content of acetone-soluble materials (resinous substances) in it
STANDARD published on 1.1.1993
Designation standards: GOST 10969-91
Publication date standards: 1.1.1993
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: Russian technical standard
Category: Technical standards GOST