STN EN 17721
| Name: | STN EN 17721 |
| Validity: | Valid |
| Number of pages: | 20 |
| Language: |
EN
|
| Paper: | 14,10€ |
| Electronic version |
a) Only read (without ability to print and copy)
12,69€ b) Without ability to print, with ability to copy (printscreen) 14,10€ c) With ability to print and copy (printscreen) 18,33€ |
| Slovak title | Rastlinné biostimulátory. Stanovenie pH pre kvapalné mikrobiálne rastlinné biostimulátory/pH v mikrobiálnych produktoch. Stanovenie pH |
| English title | Plant biostimulants - Determination of the pH for liquid microbial plant biostimulants/pH in microbial products - Determination of pH |
| Release Date: | 01. 03. 2025 |
| Date of withdrawal: | |
| ICS: | 65.080 |
| Sorting character/National clasification code | 46 5622 |
| Level of incorporation: | idt EN 17721:2024 |
| Official Journal | 02/25 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN P CEN/TS 17721:2022-07 (46 5622) |
| Note in Official Journal: | |
| Subject of the standard: | This document specifies a method for laboratory measurement of the pH value in liquid microbial plant biostimulants, using pH electrodes with a glass membrane. This document does not apply to plant biostimulants other than microbial plant biostimulants. This document is applicable to the blends of fertilizing products where a blend is a mix of at least two of the following component EU fertilising products categories: Fertilizers, Liming Materials, Soil Improvers, Growing Media, Plant Biostimulants and where the following category Plant Biostimulants is the highest percentage in the blend by mass or volume, or in the case of liquid form by dry mass. If Plant Biostimulants is not the highest percentage in the blend, the European Standard for the highest percentage of the blend applies. In case a blend of fertilizing products is composed of components in equal quantity or in case the component EU fertilising products used for the blend have identical formulations , the user decides which standard to apply. |
| Preview: | Náhľad normy (PDF) |