CEN/TC 223
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 69624 | prEN 13651 rev | Soil improvers and growing media - Extraction of calcium chloride/DTPA (CAT) soluble nutrients | Izstrādē |
| 69625 | prEN 13654-1 rev | Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method | Izstrādē |
| 69623 | prEN 13654-2 rev | Soil improvers and growing media - Determination of nitrogen - Part 2: Dumas method | Izstrādē |
| 69627 | prEN 15761 | Pre-shaped growing media - Determination of the dimensions measured and bulk density | Aptauja slēgta |
| 78568 | prEN 16086-1 rev | Soil improvers and growing media - Determination of plant response - Part 1: Pot growth test with Chinese cabbage | Izstrādē |
| 69626 | prEN 16087-1 rev | Soil improvers and growing media - Determination of the aerobic biological activity - Part 1: Oxygen uptake rate (OUR) | Izstrādē |
| 69621 | prEN 16087-2 rev | Soil improvers and growing media - Determination of the aerobic biological activity - Part 2: Self heating test for compost | Izstrādē |
| 70755 | prEN 16202 rev | Soil improvers and growing media — Determination of the content of macroscopic impurities and stones | Izstrādē |
| 71900 | prEN 17728 | Organic soil improvers - Overview of methods for the determination of the pH, electrical conductivity, the organic carbon content and the organic nitrogen content | Izstrādē |
| 71896 | prEN 17729 | Soil improvers - Overview of methods for the determination of the dry matter, quantity, the copper, zinc, chloride, nitrogen, P2O5 and K2O content | Izstrādē |
Displaying 131-140 of 159 results.