CEN/TC 238
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 76144 | prEN 437 rev | Test gases - Test pressures - Appliance categories | Izstrādē |
| 18760 | EN ISO 6570:2004 | Natural gas - Determination of potential hydrocarbon liquid content - Gravimetric methods (ISO 6570:2001) | Izstrādē |
| 82173 | prEN ISO 15403-1 rev | Natural gas — Natural gas for use as a compressed fuel for vehicles — Part 1: Designation of the quality | Izstrādē |
| 23970 | EN ISO 6978-1:2005 | Natural gas - Determination of mercury - Part 1: Sampling of mercury by chemisorption on iodine (ISO 6978-1:2003 ) | Izstrādē |
| 28628 | CEN ISO/TR 24094:2007 | Analysis of natural gas - Validation methods for gaseous reference materials (ISO/TR 24094:2006) | Izstrādē |
| 32317 | EN ISO 12213-3:2009 | Natural gas - Calculation of compression factor - Part 3: Calculation using physical properties (ISO 12213-3:2006) | Izstrādē |
| 25708 | EN ISO 6144:2006 | Gas analysis - Preparation of calibration gas mixtures - Static volumetric method (ISO 6144:2003) | Izstrādē |
| 83589 | EN ISO 6143:2025/prA1 | Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures — Amendment 1: Software B_LEAST – Performance check for non-linear model functions using alternative computer programs | 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 |
| 83984 | EN ISO 6142-1:2015/prA1 | Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures - Amendment 1: Corrections to formulae in Annex E and Annex G (ISO 6142-1:2015/Amd 1:2020) | Izstrādē |
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