CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 26423 | LVS EN ISO 20079:2007 | Water quality - Determination of the toxic effect of water constituents and waste water on duckweed (Lemna minor) - Duckweed growth inhibition test | Standarts spēkā |
| 60334 | LVS 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) | Standarts spēkā |
| 73640 | LVS EN ISO 20236:2022 | 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 |
| 76872 | LVS 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 |
| 73873 | LVS 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) | Standarts spēkā |
| 75415 | LVS EN ISO 20596-2:2022 | Water quality - Determination of cyclic volatile methylsiloxanes in water - Part 2: Method using liquid-liquid extraction with gas chromatography-mass spectrometry (GC-MS) (ISO 20596-2:2021) | Standarts spēkā |
| 63240 | LVS EN ISO 21253-1:2020 | 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) | Standarts spēkā |
| 63239 | LVS EN ISO 21253-2:2020 | 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) | Standarts spēkā |
| 29875 | LVS EN ISO 21427-2:2009 | Water quality - Evaluation of genotoxicity by measurement of the induction of micronuclei - Part 2: Mixed population method using the cell line V79 (ISO 21427-2:2006) | Standarts spēkā |
| 33298 | LVS EN ISO 21427-2:2009 /AC:2009 | Water quality - Evaluation of genotoxicity by measurement of the induction of micronuclei - Part 2: Mixed population method using the cell line V79 (ISO 21427-2:2006/Cor 1:2009) | Standarts spēkā |
Displaying 621-630 of 800 results.