01.01.2026
prEN 18258 Soil improvers and growing media Determination
of the mercury content
CEN/TC 223 15.01.01.01.2026
prEN 13654-2 Soil improvers and growing media Determination
of nitrogen Part Dumas method
CEN/TC 223 15.01.01.01.2026
prEN 18259 Soil improvers and growing media Determination
of aqua regia soluble elements
CEN/TC 223 15.2026
prEN 18255 Soil improvers and growing media Determination
of organic nitrogen
CEN/TC 223 01.01.01.01.2026
prEN 16087-1 Soil improvers and growing media Determination
of the aerobic biological degradation rate organic
matter Part Oxygen uptake rate (OUR)
CEN/TC 223 01.2026
prEN 18261 Compost and digestate Determination
of polycyclic aromatic hydrocarbons (PAH) gas
chromatography (GC) and high performance liquid
chromatography (HPLC)
CEN/TC 223 08.01.2026
prEN 13651 Soil improvers and growing media Extraction
of calcium chloride/DTPA (CAT) soluble nutrients
CEN/TC 223 15.2026
prEN 18252 Soil improvers and growing media Determination
of the chloride content
CEN/TC 223 08.2026
prEN 18251 Soil improvers and growing media Determination
of phosphonate content
CEN/TC 223 08.2026
prEN 18250 Soil improvers and growing media Plugs -
Determination the dimensions, volume and bulk
density
CEN/TC 223 08.2026
prEN ISO 14644-13 Cleanrooms and associated controlled environments -
Part 13: Cleaning surfaces achieve defined
levels cleanliness terms particle and chemical
concentration (ISO/FDIS 14644-13:2025)
CEN/TC 243 15.12.01.01.2025
prEN 13037 Soil improvers and growing media Determination
of pH
CEN/TC 223 25.2026
prEN ISO 14855-2 Determination the ultimate aerobic
biodegradability plastic materials under controlled
composting conditions Method analysis
of evolved carbon dioxide Part Gravimetric
measurement carbon dioxide evolved
in laboratory-scale test (ISO/DIS 14855-2:2025)
CEN/TC 249 16.12.2026
prEN 13654-1 Soil improvers and growing media Determination
of nitrogen Part Modified Kjeldahl method
CEN/TC 223 15.01.2026
prEN 13038 Soil improvers and growing media Determination
of electrical conductivity
CEN/TC 223 25.2026
prEN 18257 Soil improvers and growing media Determination
of chromium(VI)
CEN/TC 223 15.Věstník 12/2025
40
prEN 13650 Soil improvers and growing media Digestion by
aqua regia for subsequent determination elements
CEN/TC 223 08.2026
prEN ISO 14644-14 Cleanrooms and associated controlled environments -
Part 14: Assessment suitability for use of
equipment airborne particle concentration
(ISO/FDIS 14644-14:2025)
CEN/TC 243 15.01.2025
prEN 16087-2 Soil improvers and growing media Determination
of the aerobic biological degradation rate organic
matter Part Self heating test for compost
CEN/TC 223 01.2026
prEN 18253 Soil improvers and growing media Determination
of total organic carbon dry combustion
CEN/TC 223 01.2026
prEN 18256 Digestate Determination the residual biogas
potential
CEN/TC 223 01.01.2026
prEN 18254 Soil improvers and growing media Determination
of the inorganic arsenic content
CEN/TC 223 01.01.2026
.01.01
