ISO 625:1996

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Solid mineral fuels — Determination of carbon and hydrogen — Liebig method

ISO 625:1996 refers to an international standard published by the International Organization for Standardization (ISO) that outlines a method for determining the total carbon and hydrogen content in solid mineral fuels like coal, brown coal, lignite, and coke, using the Liebig method; essentially, it provides a standardized procedure to analyze the composition of these fuels by measuring their carbon and hydrogen levels.