CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 11038 | LVS EN ISO 7346-3:2000 | Water quality - Determination of acute lethal toxicity of substances to a freshwater fish (Brachydanio rerio - Hamilton - Buchanan (Teleostei, Cyprinidae)] - Part 3: Flow-through method | Standarts spēkā |
| 11084 | LVS EN ISO 7393-1:2001 | Water quality - Determination of free chlorine and total chlorine - Part 1: Titrimetric method using N, N-diethyl-1, 4-phenylenediamine | Standarts spēkā |
| 11085 | LVS EN ISO 7393-2:2001 | Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N, N-diethyl-1, 4-phenylenediamine for routine control purposes | Atcelts |
| 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 |
| 11086 | LVS EN ISO 7393-3:2001 | Water quality - Determination of free chlorine and total chlorine - Part 3: Iodometric titration method for the determination of total chlorine | Standarts spēkā |
| 61308 | LVS EN ISO 7704:2023 | Water quality - Requirements for the performance testing of membrane filters used for direct enumeration of microorganisms by culture methods (ISO 7704:2023) | Standarts spēkā |
| 10986 | LVS EN ISO 7827:2000 | Water quality - Evalution in an aquenos medium of the "ultimate" aerobic biodegrability of organic compounds - Method by analysis of dissolved organic carbon | Atcelts |
| 36652 | LVS EN ISO 7827:2013 | Water quality - Evaluation of the "ready", "ultimate" aerobic biodegradability of organic compounds in an aqueous medium - Method by analysis of dissolved organic carbon (DOC) (ISO 7827:2010) | Standarts spēkā |
| 10982 | LVS EN ISO 7887:1994 | Water quality - Examination and determination of color | Atcelts |
| 29946 | LVS EN ISO 7887:2012 | Water quality - Examination and determination of colour (ISO 7887:2011) | Standarts spēkā |
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