CEN/TC 223
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 70768 | prEN 18258 | Soil improvers and growing media - Determination of the mercury content | Aptauja slēgta |
| 77935 | prEN 18252 | Soil improvers and growing media - Determination of the chloride content | Aptauja slēgta |
| 69581 | prEN 13650 | Soil improvers and growing media - Digestion by aqua regia for subsequent determination of elements | Aptauja slēgta |
| 76755 | prEN 18250 | Soil improvers and growing media - Plugs - Determination of the dimensions, volume and bulk density | Aptauja slēgta |
| 70757 | prEN 18280 | Soil improvers and growing media - Enumeration of Escherichia coli | Aptauja slēgta |
| 70765 | prEN 18278 | Soil improvers and growing media - Detection of Salmonella spp. | 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 |
| 70756 | prEN 18254 | Soil improvers and growing media - Determination of the inorganic arsenic content | Aptauja slēgta |
| 71900 | prEN 17728 | Organic soil improvers - Methods for the determination of pH, electrical conductivity, organic carbon content and organic nitrogen content | Aptauja slēgta |
| 71907 | prEN 17731 | Growing media - Methods for the determination of the electrical conductivity, pH, dry matter, quantity, total copper and zinc content, water soluble chloride content, and CaCl2/DTPA extractable nitrogen, P2O5 and K2O content | Aptauja slēgta |
Displaying 101-110 of 161 results.