CEN/TC 223
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 69579 | prEN 13039 | Soil improvers and growing media - Determination of organic matter content and ash | Aptauja slēgta |
| 70759 | prEN 18261 | Compost and digestate - Determination of polycyclic aromatic hydrocarbons (PAH) by gas chromatography (GC) and high performance liquid chromatography (HPLC) | Aptauja slēgta |
| 70752 | prEN 18253 | Soil improvers and growing media - Determination of total organic carbon by dry combustion | Aptauja slēgta |
| 77936 | prEN 18259 | Soil improvers and growing media - Determination of aqua regia soluble elements | Aptauja slēgta |
| 70767 | prEN 18257 | Soil improvers and growing media - Determination of chromium(VI) | Aptauja slēgta |
| 70756 | prEN 18254 | Soil improvers and growing media - Determination of the inorganic arsenic content | Aptauja slēgta |
| 69582 | prEN 13038 | Soil improvers and growing media - Determination of electrical conductivity | Aptauja slēgta |
| 69625 | prEN 13654-1 | Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method | Aptauja slēgta |
| 70758 | prEN 18255 | Soil improvers and growing media - Determination of organic nitrogen | 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.