CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 10974 | LVS EN 26461-2:1993 A | Water quality - Detection and enumeration of the spores of sulfite-reducting anaerobes (Clostridia) - Part 2: Method by membrane filtration | Standarts spēkā |
| 11123 | LVS EN 26595:1992/AC:1992 | Water quality - Determination of total arsenic - Silver diethyldithiocarbamate spectrophotometric method (ISO 6595:1982) | Atcelts |
| 10959 | LVS EN 26595:2000 | Water quality - Determination of total arsenic - Silver diethydithiocarbamate spectrometric method | Standarts spēkā |
| 10953 | LVS EN 26777:1993 | Water quality - Determination of nitrite - Molecular absorption spectrometric method (ISO 6777:1984) | |
| 10984 | LVS EN 27027:1994 | Water quality - Determination of turbidity (ISO 7027:1990) | Atcelts |
| 10977 | LVS EN 27828:2000 A | Water quality - Methods of biological sampling - Guidance on handnet sampling of aquatic bentic macro-invertebrates | Atcelts |
| 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 |
Displaying 471-480 of 792 results.