• Hydrogen Technologies Standards form the basic framework for market ramp-up

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  • Climate change Standards and specifications support climate targets

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  • Smart Farming Standards and specifications are drivers for the digitalization of agriculture

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Projects of CEN/TC 238

DIN EN ISO 6143/A1 2026-03-17 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 More  Comment 
DIN EN ISO 15403-1 rev 2025-07-07 Natural gas - Natural gas for use as a compressed fuel for vehicles - Part 1: Designation of the quality More  Comment 
DIN EN ISO 6145-7/A1 2025-05-12 Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 7: Thermal mass-flow controllers - Amendment 1: Correction of formula C.4 (ISO 6145-7:2018/DAM 1:2025); German and English version EN ISO 6145-7:2018/prA1:2025 More  Comment 
DIN EN ISO 6978-2 rev 2025-03-19 Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy More  Comment 
DIN EN ISO 19739 rev 2024-11-28 Natural gas - Determination of sulfur compounds using gas chromatography More  Comment 
DIN EN ISO 15112 rev 2024-07-17 Natural gas - Energy determination More  Comment 
DIN EN ISO 14532 2023-12-01 Natural gas - Vocabulary More  Comment 
DIN EN ISO 6976 rev 2023-10-23 Natural gas - Calculation of calorific values, density, relative density and Wobbe indices from composition More  Comment 
DIN EN ISO 14111 2023-07-14 Natural gas - Guidelines to metrological traceability More  Comment 
DIN EN ISO 6974-4 2023-01-16 Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 4: Guidance on gas analysis (ISO/DIS 6974-4:2025); German and English version prEN ISO 6974-4:2025 More  Comment 

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