CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 10992 | LVS EN ISO 8467:1995 A | Water quality - Determination of permanganate index | Standarts spēkā |
| 40875 | LVS EN ISO 8199:2019 | Water quality - General requirements and guidance for microbiological examinations by culture (ISO 8199:2018) | Standarts spēkā |
| 28151 | LVS EN ISO 8199:2008 | Water quality - General guidance on the enumeration of micro-organisms by culture | Atcelts |
| 25492 | LVS EN ISO 8192:2007 | Water quality - Test for inhibition of oxygen consumption by activated sludge for carbonaceous and ammonium oxidation | Standarts spēkā |
| 11008 | LVS EN ISO 8192:1995 | Water quality - Test for the inhibition of oxygen consumption by activated sludge | Atcelts |
| 11087 | LVS EN ISO 7980:2000 | Water quality - Determination of calcium and magnesium - Atomic absorption spectrometric method (ISO 7980:1986) | |
| 78021 | LVS EN ISO 7899-3:2025 | Water quality - Enumeration of intestinal enterococci - Part 3: Most probable number method (ISO 7899‑3:2025) | Standarts spēkā |
| 11035 | LVS EN ISO 7899-2:2001 A | Water quality - Detection and enumeration of intestinal enterococci - Part 2: Membrane filtration method | Standarts spēkā |
| 11125 | LVS EN ISO 7899-1:1998 A /AC:2002 | Water quality - Detection and enumeration of intestinal enterococci in surface and waste water - Part 1: Miniaturized method (most probable number) by inoculation in liquid medium | Standarts spēkā |
| 10999 | LVS EN ISO 7899-1:1998 A | Water quality - Detection and enumeration of intestinal enterococci in surface and waste water - Part 1: Miniaturized method (Most Probable Number) by inoculation in liquid medium | Standarts spēkā |
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