Уголь бурый и лигниты. Принципы отбора проб. Часть 2. Приготовление проб для определения содержания влаги и общего анализа
Название (англ.):
Brown coals and lignites; Principles of sampling; Part 2 : Sample preparation for determination of moisture content and for general analysis
Описание (англ.):
The process of sample preparation consists of several operations three of which are fundamental: particle size reduction by crushing or grinding and milling; mixing; decrease of sample mass by dividing the sample (sample division). In most cases, the drying process of the sample is also necessary.