STN P CEN/TS 17789-1
| Name: | STN P CEN/TS 17789-1 |
| Validity: | Valid |
| Number of pages: | 16 |
| 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 | Organicko-minerálne hnojivá. Identifikácia chelátotvorných činidiel. Časť 1: Stanovenie EDTA, HEEDTA a DTPA iónovou chromatografiou |
| English title | Organo-mineral fertilizers - Identification of chelating agents - Part 1: Determination of EDTA, HEEDTA and DTPA by ion chromatography |
| Release Date: | 01. 08. 2022 |
| Date of withdrawal: | |
| ICS: | 65.080 |
| Sorting character/National clasification code | 65 5064 |
| Level of incorporation: | idt CEN/TS 17789-1:2022 |
| Official Journal | 07/22 |
| Amendments | |
| Replaced by: | |
| Repleces: | |
| Note in Official Journal: | Táto predbežná slovenská technická norma je určená na overenie. Prípadné pripomienky pošlite do apríla 2024 Úradu pre normalizáciu, metrológiu a skúšobníctvo SR. |
| Subject of the standard: | This document specifies a method for the determination by ion chromatography of the total amount of each of the individual chelating agents EDTA, HEEDTA, and DTPA in organo-mineral fertilizers, having an organic matrix based on vegetal residues (cocoa shells, grape residue, soybean residue, ...), algae extract, and animal meal (feather, bones, blood, ...) and containing one or more of these substances. The method allows the identification and the determination of the total water-soluble fraction of each of these chelating agents. It does not allow to distinguish between the free form and the metal bound form of the chelating agents. This method applies to organo-mineral fertilizers containing chelates of one or more of the following micronutrients: cobalt, copper, iron, manganese, zinc and with a mass fraction of at least 0,1 %. |
| Preview: | Náhľad normy (PDF) |