• 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 CEN/TC 230

DIN EN ISO 9308-3 1999-07 Standards Water quality - Detection and enumeration of Escherichia coli and coliform bacteria in surface and waste water - Part 3: Miniaturized method (most probable number) by inoculation in liquid medium (ISO 9308-3:1998); German version EN ISO 9308-3:1998 More  Order from DIN Media
DIN EN ISO 9308-4 2025-12 Draft standard Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 4: Membrane filtration method for Escherichia coli in water with high levels of background bacteria (ISO/DIS 9308-4:2025); German and English version prEN ISO 9308-4:2025 More  Read draft and comment
DIN EN ISO 9509 2006-10 Standards Water quality - Toxicity test for assessing the inhibition of nitrification of activated sludge microorganisms (ISO 9509:2006); German version EN ISO 9509:2006 More  Order from DIN Media
DIN EN ISO 9562 2005-02 Standards Water quality - Determination of adsorbable organically bound halogens (AOX) (ISO 9562:2004); German version EN ISO 9562:2004 More  Order from DIN Media
DIN EN ISO 9696 2018-04 Standards Water quality - Gross alpha activity - Test method using thick source (ISO 9696:2017); German version EN ISO 9696:2017 More  Order from DIN Media
DIN EN ISO 9697 2020-12 Standards Water quality - Gross beta activity - Test method using thick source (ISO 9697:2018); German version EN ISO 9697:2019 More  Order from DIN Media
DIN EN ISO 9697 2026-01 Draft standard Water quality - Gross beta activity - Test method using thick source (ISO/DIS 9697:2025); German and English version prEN ISO 9697:2025 More  Read draft and comment
DIN EN ISO 9698 2024-09 Standards Water quality - Tritium - Test method using liquid scintillation counting (ISO 9698:2019); German version EN ISO 9698:2019 More  Order from DIN Media
DIN EN ISO 9887 1994-12 Standards Water quality - Evaluation of the aerobic biodegradability of organic compounds in an aqueous medium - Semi-continuous activated sludge method (SCAS) (ISO 9887:1992); German version EN ISO 9887:1994 More  Order from DIN Media
DIN EN ISO 9888 1999-11 Standards Water quality - Evaluation of ultimate aerobic biodegradability of organic compounds in aqueous medium - Static test (Zahn-Wellens method) (ISO 9888:1999); German version EN ISO 9888:1999 More  Order from DIN Media

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