Уголь каменный. Определение показателя размалываемости Хардгрова
Название (англ.):
Hard coal; Determination of Hardgrove grindability index
Описание (англ.):
A prepared sample of coal of limited size range is treated under defined conditions in a laboratory apparatur of standardized design (calibrated Hardgrove machine). The grindability index is derived from sieve analysis of the ground product and by reference to a calibration chart prepared from standard reference material.