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Methods for the petrographic analysis of bituminous coal and anthracite — Part 5: Method of determining micro…

Methods for the petrographic analysis of bituminous coal and anthracite — Part 5: Method of determining micro…

Methods for the petrographic analysis of coals - Method of determining microscopically the reflectance of vit…

1 Scope This part of ISO 7404 specifies the methods for determining the reflectance of vitrinite of coals microscopically on the polished surfaces, immersed in oil. The methods are applicable to coal…

Methods for the petrographic analysis of coals — Part 5: Method of determining microscopically the reflectanc…

Overview ISO 7404-5:2009 - Methods for the petrographic analysis of coals - Part 5 specifies the microscopic method for determining vitrinite reflectance. Measurements are made on well‑polished coal…

Coal — Methods for petrographic analysis — Part 5: Method of determining microscopically the reflectance of v…

Overview ISO 7404-5:2025 - "Coal - Methods for petrographic analysis - Part 5: Method of determining microscopically the reflectance of vitrinite" specifies a microscope-based procedure to measure vi…