CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 10992 | EN ISO 8467:1995 | Water quality - Determination of permanganate index (ISO 8467:1993) | Izstrādē |
| 10992 | LVS EN ISO 8467:1995 A | Water quality - Determination of permanganate index | Standarts spēkā |
| 10993 | EN ISO 9963-1:1995 | Water quality - Determination of alkalinity - Part 1: Determination of total and composite alkalinity (ISO 9963-1:1994) | Izstrādē |
| 10993 | LVS EN ISO 9963-1:1995 A | Water quality - Determination of alkalinity - Part 1: Determination of total and composite alkalinity | Standarts spēkā |
| 10995 | EN 1899-1:1998 | Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding method with allylthiourea addition (ISO 5815:1989, modified) | Atcelts |
| 10995 | LVS EN 1899-1:1998 | Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding method with allylthiourea addition (ISO 5815:1989, modified) | |
| 10996 | ENV 12260:1996 | Water quality - Determination of nitrogen - Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection | Atcelts |
| 10996 | LVS ENV 12260:2001 A | Water quality - Determination of nitrogen - Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection | Atcelts |
| 10997 | EN ISO 11905-1:1998 | Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate (ISO 11905-1:1997) | Izstrādē |
| 10997 | LVS EN ISO 11905-1:1998 | Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate | Standarts spēkā |
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