CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 63239 | EN ISO 21253-2:2019 | Water quality - Multi-compound class methods - Part 2: Criteria for the quantitative determination of organic substances using a multi-compound class analytical method (ISO 21253-2:2019) | Izstrādē |
| 63240 | EN ISO 21253-1:2019 | Water quality - Multi-compound class methods - Part 1: Criteria for the identification of target compounds by gas and liquid chromatography and mass spectrometry (ISO 21253-1:2019) | Izstrādē |
| 73873 | EN ISO 20595:2022 | Water quality - Determination of selected highly volatile organic compounds in water - Method using gas chromatography and mass spectrometry by static headspace technique (HS-GC-MS) (ISO 20595:2018) | Izstrādē |
| 76872 | EN ISO 20236:2024 | Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2024) | Standarts spēkā |
| 73640 | EN ISO 20236:2021 | Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018) | Atcelts |
| 60334 | EN ISO 20227:2017 | Water quality - Determination of the growth inhibition effects of waste waters, natural waters and chemicals on the duckweed Spirodela polyrhiza - Method using a stock culture independent microbiotest (ISO 20227:2017) | Izstrādē |
| 26423 | EN ISO 20079:2006 | Water quality - Determination of the toxic effect of water constituents and waste water on duckweed (Lemna minor) - Duckweed growth inhibition test (ISO 20079:2005) | Izstrādē |
| 24739 | EN ISO 19493:2007 | Water quality - Guidance on marine biological surveys of hard-substrate communities (ISO 19493:2007) | Izstrādē |
| 23247 | EN ISO 19458:2006 | Water quality - Sampling for microbiological analysis (ISO 19458:2006) | Izstrādē |
| 63234 | EN ISO 19340:2017 | Water quality - Determination of dissolved perchlorate - Method using ion chromatography (IC) (ISO 19340:2017) | Izstrādē |
Displaying 511-520 of 792 results.