CEN/TC 223
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 70758 | prEN 18255 | Soil improvers and growing media - Determination of organic nitrogen | 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 |
| 69625 | prEN 13654-1 | Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method | Aptauja slēgta |
| 69624 | prEN 13651 | Soil improvers and growing media - Extraction of calcium chloride/DTPA (CAT) soluble nutrients | Aptauja slēgta |
| 69580 | prEN 13040-1 | Soil improvers and growing media - Sample preparation - Part 1: Sample preparation for chemical and physical tests, determination of dry matter content, moisture content and laboratory bulk density | 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 |
| 69623 | prEN 13654-2 | Soil improvers and growing media - Determination of nitrogen - Part 2: Dumas method | Aptauja slēgta |
| 70756 | prEN 18254 | Soil improvers and growing media - Determination of the inorganic arsenic content | Aptauja slēgta |
| 71901 | prEN 18299 | Soil improvers and growing media - Methods for the detection of Salmonella spp. and the enumeration of Escherichia coli and enterococci | Aptauja |
Displaying 51-60 of 161 results.