GB/T 15663.4-1995

GB/T 2007.2-1987 General rules for the sampling and sample preparation of minerals in bulk--Sample preparation by manual method GB/T 2007.7-1987 General rules for the sampling and sample preparation of minerals in bulk--The method for determination of size by manual sieving GB/T 2007.6-1987 General rules for thesampling and sample preparation of minerals in bulk--Determination of moisture content--Heat drying method GB/T 2007.1-1987 General rules for the sampling and sample preparation of minerals in bulk--Sampling by manual method GB/T 2007.3-1987 General rules for the sampling and sample preparation of minerals in bulk--Experimental method for evaluation of quality variation GB/T 15663.9-1995 Terms relating to coal mining--Explosive material and blasting technique GB/T 15663.5-1995 Terms relating to coal mining--Hoisting and transport GB/T 15663.11-1995 Terms relating to coal mining--Mining electrical engineering