Registration number (WIID)Project No.TitleStatus
12133LVS EN 872:2007 LWater quality - Determination of suspended solids - Method by filtration through glass fibre filtersStandarts spēkā
10412LVS ISO 6058:1984Water quality - Determination of calcium - EDTA titrimetric methodStandarts spēkā
12062LVS EN ISO 9308-3:2006 +AC A/LWater quality - Detection and enumeration of Escherichia coli and coliform bacteria in surface and waste water - Part 3: Miniaturized method (most probable number) by inoculation in liquid mediumStandarts spēkā
11905LVS EN ISO 15587-1:2005 LWater quality - Digestion for the determination of selected elements in water - Part 1: Aqua regia digestionStandarts spēkā
12055LVS EN ISO 14593:2006 A/LWater quality - Evaluation of ultimate aerobic biodegradability of organic compounds in aqueous medium - Method by analysis of inorganic carbon in sealed vessels (CO<(Index)2> headspace test)Standarts spēkā
12074LVS EN ISO 7899-1:2006 +AC LWater quality - Detection and enumeration of intestinal enterococci in surface and waste water - Part 1: Miniaturized method (most probable number) by inoculation in liquid mediumStandarts spēkā
12073LVS EN ISO 7899-2:2006 LWater quality - Detection and enumeration of intestinal enterococci - Part 2: Membrane filtration methodStandarts spēkā
11658LVS ISO 11261:2002 LSoil quality - Determination of total nitrogen - Modified Kjeldahl methodStandarts spēkā
11637LVS 409:2002Quality of Environment - Determination of the Biodegradability of Anion Surfactants - Reference methodStandarts spēkā
11511LVS 340:2001Water quality - Determination of nitrogen - Manual method using oxidative digestion with peroxodisulfate and cadmium reductionStandarts spēkā
Displaying 141-150 of 177 results.