CEN/TC 223
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 10320 | - | Soil improvers and growing media - Methods of extraction - Part 1: Extraction by water | Izstrādē |
| 10321 | - | Soil improvers and growing media - Methods of extraction - Part 2: Extraction by ammonium acetate | Izstrādē |
| 10322 | - | Soil improvers and growing media - Determination after extraction by water - Part 1: Determination of chloride content | Izstrādē |
| 10323 | - | Soil improvers and growing media - Determination after extraction by water - Part 2: Determination of ammoniacal nitrogen contents | Izstrādē |
| 10324 | - | Soil improvers and growing media - Determination after extraction by water - Part 3: Determination of nitrate nitrogen content | Izstrādē |
| 10325 | - | Soil improvers and growing media - Determination after extraction by ammonium acetate - Part 1: Determination of phosphorus | Izstrādē |
| 10326 | - | Soil improvers and growing media - Determination after extraction by ammonium acetate - Part 2: Determination of potassium content | Izstrādē |
| 10327 | - | Soil improvers and growing media - Determination after extraction by ammonium acetate - Part 3: Determination of calcium content | Izstrādē |
| 10328 | - | Soil improvers and growing media - Determination after extraction by ammonium acetate - Part 4: Determination of magnesium content | Izstrādē |
| 10329 | - | Soil improvers and growing media - Determination after extraction by ammonium acetate - Part 5: Determination of sulfur content | Izstrādē |
Displaying 11-20 of 159 results.