This Part of GB/T 19494 specifies the terms and definitions in coal sample preparation, sample structure, division, reduction, mixing and air-drying, preparation of various coal samples, reserve sample as well as design of sample-preparing device.
This Part is applicable to brown coals, bituminous coals and hard coals.
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Precision of Sampling Preparation
5 Sample Structure
6 Division
7 Reduction
8 Mixing
9 Air-drying
10 Preparation of Various Coal Samples
11 Reserve Sample
12 Design of Sample-Preparing Device
