CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 23981 | EN 14996:2006 | Water quality - Guidance on assuring the quality of biological and ecological assessments in the aquatic environment | Izstrādē |
| 23980 | EN 15110:2006 | Water quality - Guidance standard for the sampling of zooplankton from standing waters | Izstrādē |
| 24309 | EN 15196:2006 | Water quality - Guidance on sampling and processing of the pupal exuviae of Chironomidae (Order Diptera) for ecological assessment | Izstrādē |
| 23844 | EN 15204:2006 | Water quality - Guidance standard on the enumeration of phytoplankton using inverted microscopy (Utermöhl technique) | Izstrādē |
| 24872 | EN 15460:2007 | Water quality - Guidance standard for the surveying of macrophytes in lakes | Izstrādē |
| 32516 | EN 15708:2009 | Water quality - Guidance standard for the surveying, sampling and laboratory analysis of phytobenthos in shallow running water | Izstrādē |
| 28623 | EN 15843:2010 | Water quality - Guidance standard on determining the degree of modification of river hydromorphology | Atcelts |
| 79410 | EN 15843:2025 | Water quality - Guidance standard on determining the degree of modification of river hydromorphology | Standarts spēkā |
| 34758 | EN 15910:2014 | Water quality - Guidance on the estimation of fish abundance with mobile hydroacoustic methods | Izstrādē |
| 32125 | EN 15972:2011 | Water quality - Guidance on quantitative and qualitative investigations of marine phytoplankton | Izstrādē |
Displaying 91-100 of 839 results.