CEN/TC 238
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 67516 | EN ISO 10715:2022 | Natural gas - Gas sampling (ISO 10715:2022) | Izstrādē |
| 71059 | EN ISO 10101-1:2022 | Natural gas - Determination of water by the Karl Fischer method - Part 1: General requirements (ISO 10101-1:2022) | Izstrādē |
| 71673 | EN ISO 20765-5:2022 | Natural gas - Calculation of thermodynamic properties - Part 5: Calculation of viscosity, Joule-Thomson coefficient, and isentropic exponent (ISO 20765-5:2022) | Izstrādē |
| 76596 | FprEN ISO 14912 | Gas analysis - Conversion of gas mixture composition data (ISO/FDIS 14912:2025) | Izstrādē |
| 71061 | EN ISO 10101-3:2022 | Natural gas - Determination of water by the Karl Fischer method - Part 3: Coulometric procedure (ISO 10101-3:2022) | Izstrādē |
| 66278 | EN ISO 6141:2015/A1:2020 | Gas analysis - Contents of certificates for calibration gas mixtures - Amendment 1: Cross reference list to ISO Guide 31:2015 and ISO/IEC 17025:2017 (ISO 6141:2015/Amd 1:2020) | Izstrādē |
| 76595 | FprEN ISO 6143 | Gas analysis - Comparison methods for determining and checking the composition of calibration gas mixtures (ISO/FDIS 6143:2025) | Izstrādē |
| 63003 | EN ISO 6974-3:2018 | Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 3: Precision and bias (ISO 6974-3:2018) | Izstrādē |
| 30138 | EN ISO 6145-8:2008 | Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 8: Diffusion method (ISO 6145-8:2005) | Izstrādē |
| 78335 | prEN ISO 14532 rev | Natural gas — Vocabulary | Izstrādē |
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