CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 11007 | EN 25663:1993 | Water quality - Determination of Kjeldahl nitrogen - Method after mineralization with selenium (ISO 5663:1984) | Izstrādē |
| 63239 | EN ISO 21253-2:2019 | Water quality - Multi-compound class methods - Part 2: Criteria for the quantitative determination of organic substances using a multi-compound class analytical method (ISO/DIS 21253-2:2018) | Izstrādē |
| 40875 | EN ISO 8199:2018 | Water quality - General requirements and guidance for microbiological examinations by culture (ISO/DIS 8199:2017) | Izstrādē |
| 35023 | EN ISO 9308-1:2014 | Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 1: Membrane filtration method for waters with low bacterial background flora (ISO/DIS 9308-1:2012) | Izstrādē |
| 26423 | EN ISO 20079:2006 | Water quality - Determination of the toxic effect of water constituents and waste water on duckweed (Lemna minor) - Duckweed growth inhibition test (ISO 20079:2005) | Izstrādē |
| 23844 | EN 15204:2006 | Water quality - Guidance standard on the enumeration of phytoplankton using inverted microscopy (Utermöhl technique) | Izstrādē |
| 11029 | EN ISO 11369:1997 | Water quality - Determination of selected plant treatment agents - Method using high performance liquid chromatography with UV detection after solid-liquid extraction (ISO 11369:1997) | Izstrādē |
| 10997 | EN ISO 11905-1:1998 | Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate (ISO 11905-1:1997) | Izstrādē |
| 11035 | EN ISO 7899-2:2000 | Water quality - Detection and enumeration of intestinal enterococci - Part 2: Membrane filtration method (ISO 7899-2:2000) | Izstrādē |
| 83562 | prEN ISO 11348-3 rev | Water quality — Determination of the inhibitory effect of water samples on the light emission of Vibrio fischeri (Luminescent bacteria test) — Part 3: Method using freeze-dried bacteria | Izstrādē |
Displaying 591-600 of 841 results.