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ONR CEN/TS 17731

Issue date: 2022 05 15

Growing media - Determination of specific parameters

This document provides an overview of relevant methods for the determination of specific parameters in growing media, including: - the electrical conductivity; - the pH; - dry matter; - the nitrogen, P(2)O(5) (phosphorus pentoxide) and K(2)O (potassium oxide) content extractable by CaCl(2)/DTPA; - the total copper and zinc content; - the quantity. This document is applicable to EU fertilizing products classified as PFC 4 and PFC 7 as long as the main function of the EU fertilizing product is classified as PFC 4 of Regulation (EU) 2019/1009. This document is not applicable to preformed materials such as mineral wool slabs and foam slabs.

General information on ONR CEN/TS 17731

Format
Digital | 10 Pages
Language
German | English | Download GER/ENG
Publisher
Austrian Standards International

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