CEN/TC 444
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 35858 | EN ISO 12782-2:2012 | Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 2: Extraction of crystalline iron oxides and hydroxides with dithionite (ISO 12782-2:2012) | Izstrādē |
| 35859 | EN ISO 12782-3:2012 | Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 3: Extraction of aluminium oxides and hydroxides with ammonium oxalate/oxalic acid (ISO 12782-3:2012) | Izstrādē |
| 35860 | EN ISO 12782-4:2012 | Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 4: Extraction of humic substances from solid samples (ISO 12782-4:2012) | Izstrādē |
| 35861 | EN ISO 12782-5:2012 | Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 5: Extraction of humic substances from aqueous samples (ISO 12782-5:2012) | Izstrādē |
| 59371 | EN ISO 13196:2015 | Soil quality - Screening soils for selected elements by energy-dispersive X-ray fluorescence spectrometry using a handheld or portable instrument (ISO 13196:2013) | Izstrādē |
| 37228 | EN ISO 14238:2013 | Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes (ISO 14238:2012) | Izstrādē |
| 70500 | EN ISO 14239:2020 | Soil quality - Laboratory incubation systems for measuring the mineralization of organic chemicals in soil under aerobic conditions (ISO 14239:2017) | Izstrādē |
| 35431 | EN ISO 14240-1:2011 | Soil quality - Determination of soil microbial biomass - Part 1: Substrate-induced respiration method (ISO 14240-1:1997) | Izstrādē |
| 35432 | EN ISO 14240-2:2011 | Soil quality - Determination of soil microbial biomass - Part 2: Fumigation-extraction method (ISO 14240-2:1997) | Izstrādē |
| 35433 | EN ISO 14254:2011 | Soil quality - Determination of exchangeable acidity in barium chloride extracts (ISO 14254:2001) | Atcelts |
Displaying 161-170 of 338 results.