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Light petroleum products. Method for determination of colour
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Petroleum asphalts. Determination of staining tendency (stain index)
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Petroleum products. Calculating viscosity index from kinematic viscosity at 40 and 100 °C
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Peat. Methods for the determination of the disintegration degree
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Mining equipment. Multipurpose safety systems for coal mines. System of implosion protection of the mountain making. General technical requirements
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