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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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Projects of ISO/TC 158/WG 5

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Document number	Begin	Title	Comment
DIN EN ISO 6145-4 rev	2026-05-04	Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 4: Continuous syringe injection method More	Comment
ISO/AWI 6145-4	2026-04-24	Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 4: Continuous syringe injection method 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

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