Registration number (WIID)Project No.TitleStatus
62890LVS EN ISO 20765-2:2019Natural gas - Calculation of thermodynamic properties - Part 2: Single-phase properties (gas, liquid, and dense fluid) for extended ranges of application (ISO 20765-2:2015)Standarts spēkā
23971EN ISO 6978-2:2005Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy (ISO 6978-2:2003)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
23968EN ISO 6975:2005Natural gas - Extended analysis - Gas-chromatographic method (ISO 6975:1997)Standarts spēkā
32828EN ISO 6145-1:2019Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 1: General aspects (ISO 6145-1:2019)Standarts spēkā
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
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
76596LVS EN ISO 14912:2025Gas analysis - Conversion of gas mixture composition data (ISO 14912:2025)Standarts spēkā
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