CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 32125 | LVS EN 15972:2012 | Water quality - Guidance on quantitative and qualitative investigations of marine phytoplankton | Standarts spēkā |
| 28623 | LVS EN 15843:2010 | Water quality - Guidance standard on determining the degree of modification of river hydromorphology | Standarts spēkā |
| 30623 | LVS EN ISO 5667-23:2011 | Water quality - Sampling - Part 23: Guidance on passive sampling in surface waters (ISO 5667-23:2011) | 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 |
| 29946 | LVS EN ISO 7887:2012 | Water quality - Examination and determination of colour (ISO 7887:2011) | Standarts spēkā |
| 33488 | LVS CEN/TR 16151:2011 | Water quality - Guidance on the design of Multimetric Indices | Standarts spēkā |
| 41270 | LVS EN ISO 7393-2:2018 | Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N,N-dialkyl-1,4-phenylenediamine, for routine control purposes (ISO 7393-2:2017) | Standarts spēkā |
| 40119 | LVS EN 16772:2016 | Water quality - Guidance on methods for sampling invertebrates in the hyporheic zone of rivers | Standarts spēkā |
| 10997 | LVS EN ISO 11905-1:1998 | Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate | Standarts spēkā |
| 39328 | LVS EN ISO 9308-2:2014 | Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 2: Most probable number method (ISO 9308-2:2012) | Standarts spēkā |
Displaying 191-200 of 801 results.