CEN/TC 223
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 69581 | prEN 13650 | Soil improvers and growing media - Digestion by aqua regia for subsequent determination of elements | Aptauja slēgta |
| 70768 | prEN 18258 | Soil improvers and growing media - Determination of the mercury content | Aptauja slēgta |
| 70752 | prEN 18253 | Soil improvers and growing media - Determination of total organic carbon by dry combustion | Aptauja slēgta |
| 70756 | prEN 18254 | Soil improvers and growing media - Determination of the inorganic arsenic content | Aptauja slēgta |
| 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 |
| 70767 | prEN 18257 | Soil improvers and growing media - Determination of chromium(VI) | Aptauja slēgta |
| 69582 | prEN 13038 | Soil improvers and growing media - Determination of electrical conductivity | Aptauja slēgta |
| 71896 | prEN 17729 | Soil improvers - Methods for the determination of the dry matter, quantity, copper, zinc, chloride, nitrogen, P2O5 and K2O content | Aptauja slēgta |
| 77936 | prEN 18259 | Soil improvers and growing media - Determination of aqua regia soluble elements | Aptauja slēgta |
| 69624 | prEN 13651 | Soil improvers and growing media - Extraction of calcium chloride/DTPA (CAT) soluble nutrients | Aptauja slēgta |
Displaying 41-50 of 161 results.