Registration number (WIID)Project No.TitleStatus
11087LVS EN ISO 7980:2000Water quality - Determination of calcium and magnesium - Atomic absorption spectrometric method (ISO 7980:1986) 
11008LVS EN ISO 8192:1995Water quality - Test for the inhibition of oxygen consumption by activated sludgeAtcelts
25492LVS EN ISO 8192:2007Water quality - Test for inhibition of oxygen consumption by activated sludge for carbonaceous and ammonium oxidationStandarts spēkā
28151LVS EN ISO 8199:2008Water quality - General guidance on the enumeration of micro-organisms by cultureAtcelts
40875LVS EN ISO 8199:2019Water quality - General requirements and guidance for microbiological examinations by culture (ISO 8199:2018)Standarts spēkā
10992LVS EN ISO 8467:1995 AWater quality - Determination of permanganate indexStandarts spēkā
11045LVS EN ISO 8689-1:2001 AWater quality - Biological classification of rivers - Part 1: Guidance on the interpretation of biological quality data from surveys of benthic macroinvertebratesStandarts spēkā
11058LVS EN ISO 8689-2:2001 AWater quality - Biological classification of rivers - Part 2: Guidance on the presentation of biological quality data from surveys of benthic macroinvertebratesStandarts spēkā
11099LVS EN ISO 8692:2005Water quality - Freshwater algal growth inhibition test with unicellular green algaeAtcelts
33113LVS EN ISO 8692:2012Water quality - Fresh water algal growth inhibition test with unicellular green algae (ISO 8692:2012)Standarts spēkā
Displaying 701-710 of 813 results.