CEN/TC 223
| Reģistrācijas numurs (WIID) | Projekta Nr. | Nosaukums | Statuss |
|---|---|---|---|
| 29353 | - | Soil improvers and growing media - Extraction of nitric acid soluble elements | Izstrādē |
| 10339 | - | Soil improvers and growing media - Determination of total elements content - Part 2: Determination of nitrogen content | Izstrādē |
| 10324 | - | Soil improvers and growing media - Determination after extraction by water - Part 3: Determination of nitrate nitrogen content | Izstrādē |
| 10323 | - | Soil improvers and growing media - Determination after extraction by water - Part 2: Determination of ammoniacal nitrogen contents | Izstrādē |
| 80631 | prEN 13041 rev | Soil improvers and growing media — Determination of physical properties — Dry bulk density, air volume, water volume, shrinkage value and total pore space | Izstrādē |
| 69622 | EN 15238:2022 | Bodenverbesserungsmittel und Kultursubstrate - Bestimmung der Menge für Materialien mit einer Partikelgröße über 60 mm | Izstrādē |
| 10331 | - | Soil improvers and growing media - Determination after extraction by ammonium acetate - Part 7: Determination of Boron content | Izstrādē |
| 10369 | - | Soil improvers and growing media - Determination of mercury content | Izstrādē |
| 10377 | EN 13650:2001 | Bodenverbesserungsmittel und Kultursubstrate - Extraktion von in Königswasser löslichen Elementen | Izstrādē |
| 10381 | EN 13654-2:2001 | Bodenverbesserungsmittel und Kultursubstrate - Bestimmung von Stickstoff - Teil 2: Verfahren nach Dumas | Izstrādē |
Attēlo no 51. līdz 60. no pavisam 161 ieraksta(-iem).