Registration number (WIID)Project No.TitleStatus
21815LVS EN 12260:2003 AWater quality - Determination of nitrogen - Determination of bound nitrogen (TN{sub}b), following oxidation to nitrogen oxidesAtcelts
10960LVS EN 1233:1996Water quality - Determination of chromium - Atomic absorption spectrometric methods 
11039LVS EN 12338:1998Water quality - Determination of mercury - Enrichment methods by amalgamationAtcelts
11018LVS EN 12673:1998Water quality - Gas chromatographic determination of some selected chlorophenols in waterStandarts spēkā
11078LVS EN 12780:2003 AWater quality - Detection and enumeration of Pseudomonas aeruginosa by membrane filtrationAtcelts
11078LVS EN 12780:2007 LWater quality - Detection and enumeration of Pseudomonas aeruginosa by membrane filtrationAtcelts
11031LVS EN 12918:2001Water quality - Determination of parathion, parathion-methyl and some other organophosphorus compounds in water by dichloromethane extraction and gas chromatographic analysisStandarts spēkā
11054LVS EN 13506:2002Water quality - Determination of mercury by atomic fluorescence spectrometryAtcelts
11059LVS EN 13946:2003Water quality - Guidance standard for the routine sampling and pretreatment of benthic diatoms from riversAtcelts
36146LVS EN 13946:2014Water quality - Guidance for the routine sampling and preparation of benthic diatoms from rivers and lakesStandarts spēkā
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