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Petroleum and petroleum products. Determination of hydrogen sulfide, methyl- and ethylmercaptans by gas chromatography method
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Insulating oils. Detection of corrosive sulfur. Silver strip test
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Brown coals, hard coals and anthracite. Radiation methods for the determination of ash content
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Petroleum and natural gas industries. Progressing cavity pump systems for artificial lift. Part 1. Pumps. General technical requirements
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Brown coals, hard coals, anthracites, combustible shales, turf and briquettes. Accuracy of weighting
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Hard coals. Method for determination of plastometric indices
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