CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 10983 | LVS EN 27888:1993 | Water quality - Determination of electrical conductivity | Standarts spēkā |
| 10978 | LVS EN 28265:2000 A | Water quality - Design and use of quantitative samplers for benthic macro-invertebrates on stony substrata in shallow freshwaters | Atcelts |
| 10975 | LVS EN 28692:2000 | Water quality - Fresh water algal growth inhibition test with Scenedesmus subspicatus and Selenastrum capricornutum | Atcelts |
| 10970 | LVS EN 29408:1993 | Water quality - Evaluation in an aqueous medium of the "ultimate" aerobic biodegradability of organic compounds - Method of determining the oxygen demand in a closed respirometer (ISO 9408:1991) | Atcelts |
| 10968 | LVS EN 29439:1993 | Water quality - Evaluation in an aqueous medium of the "ultimate" aerobic biodegradability of organic compounds - Method by analysis of released carbon dioxide (ISO 9439:1990) | Atcelts |
| 10969 | LVS EN 29888:1993 | Water quality - Evaluation of the aerobic biodegradability of organic compounds in an aqueous medium - Static test (Zahn-Wellens method) (ISO 9888:1991) | Atcelts |
| 11012 | LVS EN 872:1996 | Water quality - Determination of suspended solids - Method by filtration through glass fibre filters | Atcelts |
| 22918 | LVS EN 872:2005 A | Water quality - Determination of suspended solids - Method by filtration through glass fibre filters | Standarts spēkā |
| 10955 | LVS EN 903:2001 | Water quality - Determination of anionic surfactants by measurement of the methylene blue index MBAS | Standarts spēkā |
| 10987 | LVS EN ISO 10253:2000 | Water quality - Marine algal growth inhibition test with Skeletonema costatum and Phaeodactylum tricornutum | Atcelts |
Displaying 481-490 of 800 results.