Fixed carbon : 43.5 % (+/-5 %). Volatility : 20 % (+/-3 %). Moisture : 10 % max. Shape & size of pellet : cylinder : diameter 8 mm ; length : 2 3 cm. Bulk specific gravity: 350 ~ 400/ 1000 ml grams. Ash ; S1O2 : 85 % (+/-5 %). Al2O3 ; CaO ; MgO ; Fe2O3 are 2 % max respectively. Duration of live coals ~ 50 minutes Contains no chemicals, No spark, Odorless