Registration number (WIID)Project No.TitleStatus
11511LVS 340:2001Water quality - Determination of nitrogen - Manual method using oxidative digestion with peroxodisulfate and cadmium reductionStandarts spēkā
11923LVS EN ISO 3696:2005 LWater for analytical laboratory use - Specification and test methodsStandarts spēkā
11169LVS ISO 7875-2:1984Water quality - Determination of surfactants - Part 2: Determination of non-ionic surfactants using Dragedorff reagentStandarts spēkā
11510LVS 339:2001Water quality - Determination of nitrite - Manual cadmium reduction methodStandarts spēkā
12081LVS ISO 10694:2006 A/LSoil quality - Determination of organic and total carbon after dry combustion (elementary analysis)Standarts spēkā
11833LVS EN ISO 8689-2:2004 LWater quality - Biological classification of rivers - Part 2: Guidance on the presentation of biological quality data from surveys of benthic macroinvertebratesStandarts spēkā
11831LVS EN ISO 8689-1:2004 LWater quality - Biological classification of rivers - Part 1: Guidance on the interpretation of biological quality data from surveys of benthic macroinvertebratesStandarts spēkā
10934LVS ISO 5664:2004 L /NAC:2007Water quality; Determination of ammonium; Distillation and titration methodStandarts spēkā
11920LVS EN ISO 6878:2005 A/LWater quality - Determination of phosphorus - Ammonium molybdate spectrometric methodStandarts spēkā
11548LVS ISO 12884:2001Ambient air - Determination of total (gas- and particle-phase) polycyclic aromatic hydrocarbons - Collection on sorbent-backed filters with gas chromatographic/mass spectrometric analysesStandarts spēkā
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