Chemical Composition
Fixed Carbon	98.5% Min.
Moisture	0.1% Max.
Ash	0.5% Max.
Sulphur	2.0% Max.
Volatile Matter	0.5% Max.
Practical Size
+ 0.25	Nil
+ 6 mesh	10% Max.
+ 60 mesh	90% Min.
- 100 mesh	5% (Max.)