Seam	Water content mass $W_{t}^{r}$		Ash content А^d, %		Volatile yield V^daf, %	Average high heat value, kcal/kg		Mass fraction, % (not more)
Seam	avg	lim	avg	lim	Volatile yield V^daf, %	$Q_{s}^{d a f}$	$Q_{r}^{i}$	Rock mixed with coal	Total sulfur $S_{t}^{d}$
Upper	30.7	33.0	17.0	18.0	49.0	6700	3490	2.5	0.4