CEN/TC 223
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 69554 | prEN 17733 | Soil improvers and growing media - Methods for sampling and sample preparation | Aptauja slēgta |
| 79448 | prEN 13040-2 | Soil improvers and growing media - Sample preparation - Part 2: Sample preparation for microbiological examination | Aptauja slēgta |
| 69625 | prEN 13654-1 | Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method | Aptauja slēgta |
| 10377 | LVS EN 13650:2002 A | Soil improvers and growing media - Extraction of aqua regia soluble elements | Standarts spēkā |
| 24337 | LVS EN 15428:2008 | Soil improvers and growing media - Determination of particle size distribution | Standarts spēkā |
| 71899 | LVS CEN/TS 17728:2022 | Organic soil improvers - Determination of specific parameters | Standarts spēkā |
| 10379 | LVS EN 13652:2002 A | Soil improvers and growing media - Extraction of water soluble nutrients and elements | Standarts spēkā |
| 10376 | LVS CR 13455:2003 A | Soil improvers and growing media - Guidelines for the safety of users, the environment and plants | Standarts spēkā |
| 24761 | LVS EN 13040:2008 | Soil improvers and growing media - Sample preparation for chemical and physical tests, determination of dry matter content, moisture content and laboratory compacted bulk density | Standarts spēkā |
| 65635 | LVS EN 16087-1:2020 | Soil improvers and growing media - Determination of the aerobic biological activity - Part 1: Oxygen uptake rate (OUR) | Standarts spēkā |
Displaying 121-130 of 161 results.