• 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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Publications of ISO/TC 221/WG 4

ISO 12958-1 2020-10 Standards Geotextiles and geotextile-related products - Determination of water flow capacity in their plane - Part 1: Index test More  Order from DIN Media
ISO 12958-2 2020-10 Standards Geotextiles and geotextile-related products - Determination of water flow capacity in their plane - Part 2: Performance test More  Order from DIN Media
ISO 18325 2015-11 Standards Geosynthetics - Test method for the determination of water discharge capacity for prefabricated vertical drains More  Order from DIN Media

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