Registration number (WIID)Project No.TitleStatus
76144prEN 437 revTest gases - Test pressures - Appliance categoriesIzstrādē
32315EN ISO 12213-1:2009Natural gas - Calculation of compression factor - Part 1: Introduction and guidelines (ISO 12213-1:2006)Izstrādē
18775EN ISO 6974-4:2001Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 4: Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns (ISO 6974-4:2000)Izstrādē
18760EN ISO 6570:2004Natural gas - Determination of potential hydrocarbon liquid content - Gravimetric methods (ISO 6570:2001)Izstrādē
34338EN ISO 6974-5:2014Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 5: Isothermal method for nitrogen, carbon dioxide, C1 to C5 hydrocarbons and C6+ hydrocarbons (ISO 6974-5:2014)Izstrādē
40208EN ISO 15970:2014Natural gas - Measurement of properties - Volumetric properties: density, pressure, temperature and compression factor (ISO 15970:2008)Izstrādē
26037EN 437:2003/prA1Test gases - Test pressures - Appliance categoriesIzstrādē
37358EN ISO 6142-1:2015Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures (ISO 6142-1:2015)Izstrādē
30139EN ISO 6145-10:2008Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 10: Permeation method (ISO 6145-10:2002)Izstrādē
66279prEN ISO 14912 revGas analysis - Conversion of gas mixture composition dataIzstrādē
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