CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 11036 | LVS EN ISO 7346-1:2000 | Water quality - Determination of acute lethal toxicity of substances to a freshwater fish (Brachydanio rerio - Hamilton - Buchanan (Teleostei, Cyprinidae)] - Part 1: Static method | Standarts spēkā |
| 10999 | LVS EN ISO 7899-1:1998 A | Water quality - Detection and enumeration of intestinal enterococci in surface and waste water - Part 1: Miniaturized method (Most Probable Number) by inoculation in liquid medium | Standarts spēkā |
| 11090 | LVS EN ISO 15587-2:2002 A | Water quality - Digestion for the determination of selected elements in water - Part 2: Nitric acid digestion | Standarts spēkā |
| 36151 | LVS EN 16870:2017 | Water quality - Guidance standard on determining the degree of modification of lake hydromorphology | Standarts spēkā |
| 11018 | LVS EN 12673:1998 | Water quality - Gas chromatographic determination of some selected chlorophenols in water | Standarts spēkā |
| 63237 | LVS EN ISO 5815-1:2020 | Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding method with allylthiourea addition (ISO 5815-1:2019) | Standarts spēkā |
| 71941 | LVS EN ISO 13163:2022 | Water quality - Lead-210 - Test method using liquid scintillation counting (ISO 13163:2021) | Standarts spēkā |
| 11045 | LVS EN ISO 8689-1:2001 A | Water quality - Biological classification of rivers - Part 1: Guidance on the interpretation of biological quality data from surveys of benthic macroinvertebrates | Standarts spēkā |
| 36146 | LVS EN 13946:2014 | Water quality - Guidance for the routine sampling and preparation of benthic diatoms from rivers and lakes | Standarts spēkā |
| 72995 | LVS EN ISO 10872:2021 | Water and soil quality - Determination of the toxic effect of sediment and soil samples on growth, fertility and reproduction of Caenorhabditis elegans (Nematoda) (ISO 10872:2020) | Standarts spēkā |
Displaying 571-580 of 800 results.