CHAPTER 24: NATIONAL AND INTERNATIONAL STANDARDS APPERTAINING TO BROWN COALS AND LIGNITES: 24.1 Selected standards and comments.

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    • Abstract:
      The article focuses on the international standards for coal and lignites, its calorific value. It discusses the International Organization for Standardization (ISO) standard on vitrinite reflectance identifying brown coal, American Society for Testing and Materials (ASTM) standards analysing carbon, hydrogen and nitrogen.