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Niobium pentoxide. Chemical-atomic-emission method for determination of impurity metals
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Sodium chlorate for industrial use. Determination of mass fraction substances insoluble in water. Gravimetric method
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Underground mines. Explosion prevention and protection systems. Equipment and protective systems for firedamp drainage
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Petroleum and natural gas industries. Reciprocating compressors. General technical requirements
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Lubricants, industrial oils and related products (class L). Family C (Gears). Part 1. Specifications for lubricants for enclosed gear systems
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