CEN/TC 238
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 81006 | prEN ISO 19739 rev | Natural gas — Determination of sulfur compounds using gas chromatography | Izstrādē |
| 83897 | prEN ISO 6145-4 rev | Gas analysis — Preparation of calibration gas mixtures using dynamic volumetric methods — Part 4: Continuous syringe injection method | Izstrādē |
| 18754 | prEN ISO 6326-1 | Natural gas - Determination of sulfur compounds - Part 1: General introduction (ISO 6326-1:2007) | Atcelts |
| 77314 | prEN ISO 6974-4 | Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 4: Guidance on gas analysis (ISO/DIS 6974-4:2025) | Izstrādē |
| 78847 | prEN ISO 6976 rev | Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition | Izstrādē |
| 81528 | prEN ISO 6978-2 rev | Natural gas — Determination of mercury — Part 2: Sampling of mercury by amalgamation on gold/platinum alloy | Izstrādē |
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