• 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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Publications of ISO/TC 221/WG 4

DIN EN ISO 11058 2019-09 Standards Geotextiles and geotextile-related products - Determination of water permeability characteristics normal to the plane, without load (ISO 11058:2019); German version EN ISO 11058:2019 More  Order from Beuth Verlag
DIN EN ISO 12956 2020-05 Standards Geotextiles and geotextile-related products - Determination of the characteristic opening size (ISO 12956:2019); German version EN ISO 12956:2020 More  Order from Beuth Verlag
DIN EN ISO 12958-1 2021-05 Standards Geotextiles and geotextile-related products - Determination of water flow capacity in their plane - Part 1: Index test (ISO 12958-1:2020); German version EN ISO 12958-1:2020 More  Order from Beuth Verlag
DIN EN ISO 12958-2 2021-05 Standards Geotextiles and geotextile-related products - Determination of water flow capacity in their plane - Part 2: Performance test (ISO 12958-2:2020); German version EN ISO 12958-2:2020 More  Order from Beuth Verlag
ISO 10769 2011-06 Standards Clay geosynthetic barriers - Determination of water absorption of bentonite More  Order from Beuth Verlag
ISO 10772 2012-08 Standards Geotextiles - Test method for the determination of the filtration behaviour of geotextiles under turbulent water flow conditions More  Order from Beuth Verlag
ISO 10773 2011-05 Standards Clay geosynthetic barriers - Determination of permeability to gases More  Order from Beuth Verlag
ISO 10776 2012-08 Standards Geotextiles and geotextile-related products - Determination of water permeability characteristics normal to the plane, under load More  Order from Beuth Verlag
ISO 11058 2019-05 Standards Geotextiles and geotextile-related products - Determination of water permeability characteristics normal to the plane, without load More  Order from Beuth Verlag
ISO 12956 2019-12 Standards Geotextiles and geotextile-related products - Determination of the characteristic opening size More  Order from Beuth Verlag

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