CEN/TC 223
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 79448 | prEN 13040-2 | Soil improvers and growing media - Sample preparation - Part 2: Sample preparation for microbiological examination | Aptauja |
| 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 |
| 69581 | prEN 13650 | Soil improvers and growing media - Digestion by aqua regia for subsequent determination of elements | Aptauja slēgta |
| 69624 | prEN 13651 | Soil improvers and growing media - Extraction of calcium chloride/DTPA (CAT) soluble nutrients | Aptauja slēgta |
| 69625 | prEN 13654-1 | Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method | Aptauja slēgta |
| 69623 | prEN 13654-2 | Soil improvers and growing media - Determination of nitrogen - Part 2: Dumas method | 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 | Soil improvers and growing media - Determination of the aerobic biological degradation rate of organic matter - Part 1: Oxygen uptake rate (OUR) | Aptauja slēgta |
| 69621 | prEN 16087-2 | Soil improvers and growing media - Determination of the aerobic biological degradation rate of organic matter - Part 2: Self heating test for compost | Aptauja slēgta |
| 71900 | prEN 17728 | Organic soil improvers - Methods for the determination of pH, electrical conductivity, organic carbon content and organic nitrogen content | Aptauja |
Displaying 131-140 of 161 results.