Registration number (WIID)Project No.TitleStatus
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
11832LVS EN ISO 8689-2:2004 A/LWater quality - Biological classification of rivers - Part 2: Guidance on the presentation of biological quality data from surveys of benthic macroinvertebratesStandarts spēkā
10987LVS ISO 7996:2001Ambient air - Determination of the mass concentration of nitrogen oxides - Chemiluminescence 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
11152LVS ISO 6777:1984Water quality - Determination of nitrite - Molecular absorption spectrometric methodStandarts spēkā
11916LVS EN ISO 5961:2005 LWater quality - Determination of cadmium by atomic absorption spectrometryStandarts spēkā
12083LVS ISO 11222:2006 LAir quality - Determination of the uncertainty of the time average of air quality measurementsStandarts spēkā
Displaying 21-30 of 177 results.