CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 11075 | LVS EN ISO 7027:2002 | Water quality - Determination of turbidity | Atcelts |
| 63219 | LVS EN ISO 7027-2:2019 | Water quality - Determination of turbidity - Part 2: Semi-quantitative methods for the assessment of transparency of waters (ISO 7027-2:2019) | Standarts spēkā |
| 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 |
| 11037 | LVS EN ISO 7346-2:2000 | Water quality - Determination of acute lethal toxicity of substances to a freshwater fish (Brachydanio rerio - Hamilton - Buchanan (Teleostei, Cyprinidae)] - Part 2: Semi-static method | Standarts spēkā |
| 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 |
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