CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 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 |
| 32263 | EN 16039:2011 | Water quality - Guidance standard on assessing the hydromorphological features of lakes | Izstrādē |
| 32800 | EN 16101:2012 | Water quality - Guidance standard on interlaboratory comparison studies for ecological assessment | Izstrādē |
| 33487 | EN 16150:2012 | Water quality - Guidance on pro-rata Multi-Habitat sampling of benthic macro-invertebrates from wadeable rivers | Izstrādē |
Displaying 91-100 of 813 results.