Russian standards PDF
Operation and repair of process pipelines operating under pressure up to 10.0 MPa (100 kgf/square centimeter)
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Mass concentration of nitrogen oxide and nitrogen dioxide in atmosphere air samples. The procedure of measurement by photometric method using sulfanilic acid and I-naphthylamine
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Guidelines for calculation of short circuit currents and selection of electrical equipment
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Requirements for installation of fixed gas detector sensors in process rooms and outdoors at petroleum and gas industry facilities
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