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Tungsten concentrate. Methods of determination of sulphur
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Organic chemical products. Determination of solidification point by thermistor
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Oils and greases. Method for determination of mechanical impurities in counting chamber
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Hydrochloric acid for industrial use. Determination of arsenic content by silver diethyldithiocarbamate photometric method
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Insulating mineral oils. Determination of interfacial tension of oil against water by the ring method
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