1. Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke;American Society for Testing and Materials (ASTM) ASTM D5373,2021
2. Standard Test Method for Gross Calorific Value of Coal and Coke;American Society for Testing and Materials (ASTM) ASTM D5865/D5865M,2019
3. Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light;American Society for Testing and Materials (ASTM) D2797/D2797M,2020
4. Standard Test Method for Ash in the Analysis Sample of Coal and Coke from Coal;American Society for Testing and Materials (ASTM) D3174,2020
5. Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke;American Society for Testing and Materials (ASTM) D3175,2020