Abstract
Brown coals are classified in this International Standard according to the following properties: total moisture content calculated on the ash-free basis; tar hiels calculated on the dry, ash-free basis. In tables class numbers, group number and code numbers of brown coal types are given.
General information
-
Status: Under developmentStage: CD approved for registration as DIS [30.99]
-
Edition: 2
-
Technical Committee :ISO/TC 27/SC 5
- RSS updates
Life cycle
-
Previously
PublishedISO 2950:1974
-
Now