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Coal. Methods for petrographic analysis - Method of preparing coal samples. Original standard BS ISO 7404-2-2025 in PDF full version. Additional info + preview on request

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Coal. Methods for petrographic analysis - Method of determining maceral group composition. Original standard BS ISO 7404-3-2025 in PDF full version. Additional info + preview on request

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Coal. Methods for petrographic analysis - Method of determining microlithotype, carbominerite and minerite composition. Original standard BS ISO 7404-4-2025 in PDF full version. Additional info + preview on request

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Coal - Methods for petrographic analysis - Method of determining microscopically the reflectance of vitrinite. Original standard BS ISO 7404-5-2025 in PDF full version. Additional info + preview on request

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Lithium - Vocabulary. Original standard BS ISO 7819-2025 in PDF full version. Additional info + preview on request

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Reciprocating internal combustion engine driven alternating current generating sets - Controlgear and switchgear. Original standard BS ISO 8528-4-2025 in PDF full version. Additional info + preview on request

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