Registration number (WIID)Project No.TitleStatus
71673LVS EN ISO 20765-5:2022Natural gas - Calculation of thermodynamic properties - Part 5: Calculation of viscosity, Joule-Thomson coefficient, and isentropic exponent (ISO 20765-5:2022)Standarts spēkā
64361EN ISO 6145-7:2018Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 7: Thermal mass-flow controllers (ISO/DIS 6145-7:2017)Standarts spēkā
76596LVS EN ISO 14912:2025Gas analysis - Conversion of gas mixture composition data (ISO 14912:2025)Standarts spēkā
67717LVS EN 1749:2020Classification of gas appliances according to the method of supplying combustion air and of evacuation of the combustion products (types)Standarts spēkā
60267LVS EN ISO 6976:2016Natural gas - Calculation of calorific values, density, relative density and Wobbe indices from composition (ISO 6976:2016)Standarts spēkā
35800EN ISO 13734:2013Natural gas - Organic components used as odorants - Requirements and test methods (ISO/DIS 13734:2012)Standarts spēkā
61352LVS EN ISO 14532:2017Natural gas - Vocabulary (ISO 14532:2014)Standarts spēkā
76595LVS EN ISO 6143:2025Gas analysis - Comparison methods for determining and checking the composition of calibration gas mixtures (ISO 6143:2025)Standarts spēkā
74767CEN/TR 1404:2024Test gases - Determination of emissions from appliances burning gaseous fuels during type-testingStandarts spēkā
66879EN ISO 15112:2018Natural gas - Energy determination (ISO/DIS 15112:2018)Standarts spēkā
Displaying 101-110 of 124 results.