Registration number (WIID)Project No.TitleStatus
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
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
10491LVS 410:2002Quality of Environment - Determination of the Biodegradability of Non-ionic Surfactants - Reference methodStandarts spēkā
11516LVS ISO 13964:2001Air quality - Determination of ozone in ambient air - Ultraviolet photometric methodStandarts spēkā
10529LVS EN ISO 13395:2004 A/LWater quality - Determination of nitritenitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detectionStandarts spēkā
11511LVS 340:2001Water quality - Determination of nitrogen - Manual method using oxidative digestion with peroxodisulfate and cadmium reductionStandarts spēkā
10380LVS ISO 6060:1989Water quality - Determination of the chemical oxygen demandStandarts spēkā
12163LVS EN 1233:1996Water quality - Determination of chromium - Atomic absorbtion spectrometric methodsStandarts spēkā
11922LVS EN ISO 3696:2005 A/LWater for analytical laboratory use - Specification and test methodsStandarts spēkā
11963LVS EN 12457-1:2005 A/LCharacterisation of waste - Leaching; Compliance test for leaching of granular waste materials and sludges - Part 1: One stage batch test at a liquid to solid ratio of 2 l/kg for materials with high solid content and with particle size below 4 mm (without or with size reduction)Standarts spēkā
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