RF Government Decree No. 644 dated 29.07.2013 (as of 22.05.2020 with amendments and modifications that will come into force since 01.07.2020)
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Oil, petrochemical and gas industry. Shell and tube heat-exchangers. Technical specifications. Replaces O’z DSt 1138:2007 in the part of section 7
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State system for ensuring the uniformity of measurements of the Republic of Uzbekistan. The procedure for geological control of the results of quantitative chemical analysis of samples of solid incombustible minerals
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Cylindrical container/vessel apparatus for gas and fluid environments. Technical specifications. Replaces Tst 39.0-026:2008
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Engine oils. Method for determination of apparent viscosity at temperatures between -5 deg. C and -35 deg. C using the cold-cranking simulator
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Nickel, ferronickel and nickel alloys. Determination of phosphorus content. Phosphovanadomolybdate molecular absorption spectrometric method
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Chalk. Method for determination of chloride ions content in water extract
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Coals and anthracites. Method for the determination of thermal stability
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Petroleum cokes of delayed coking. Sampling and preparation of samples
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