Russian standards PDF
Methods for the petrographic analysis of coals. Part 5. Method of determining microscopically the reflectance of vitrinite
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Methods for the petrographic analysis of coals. Part 2. Methods of preparing coal samples
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Water-tube boilers and auxiliary installations. Part 12. Requirements for boiler feedwater and boiler water quality
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Water-tube boilers and auxiliary installations. Part 16. Requirements for grate and fluidized-bed firing systems for solid fuels for the boiler
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Drinking water. Methods for the determination of permanganate index
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Real-time audiovisual information system (RAVIS). Monitoring receiver. General technical requirements
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