Water. Graphimetric method of determining sulphates in natural, sewage water. Put into effect in substitution of NM AM No. 316-g
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Water Quality. Determination of chemical oxygen demand (COD)
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Water supply. Requirements for systems and components for water storage
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Water quality. Determination of neutral sulphite semi-chemical number
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Water Quality. Chrome determination. Spectrometric method using 1.5-Diphenylcarbazide
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Water for water-flooding of oil reservoirs, determination of mechanical impurities content in river water and produced water. Put into effect in substitution of OST 39-231-89
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Water for Oil Reservoir Flooding. Quality requirements Put into effect in substitution of OST OST 39-225-88
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Environment protection. Hydrosphere. Determination of metals (Zn, Cd, Pb, Cu) in surface water, underground sources and sewage water
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Method for determining the mass concentration of ammonia and ammonium ions by the titrimetric method in polluted wastewater
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Manometers and vacuum gauges with elastic sensitive elements METROLOGICAL AND TECHNICAL CHARACTERISTICS
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Mass concentration of phosphates in sea waters Photometric measurement method
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Water Quality. Determination of atomic absorption spectrophotometry micro-element content using a graphite furnace
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