TECHNISCHE REGEL

Current

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

Frequently Asked Questions about ONR CEN/TS 17731

When you purchase a standard from the Austrian Standards webshop (e.g. ÖNORM, ISO), a single-user licence is included as standard. This entitles a single person to use the standard. A multi-user licence is required if several employees need access. It enables company-wide, legally compliant use and sharing of standards.

Find out more about the benefits of multi-user licences

Standardization thrives on expertise and participation. Anyone interested can play an active role in its further development – for example, by joining the relevant committee or a working group. In this way, you can help shape the content and contribute to advancing the state of the art.

Find out more about getting involved in standardization

If you have an extensive portfolio of standards, we recommend using a professional standards management tool. With effects 2.0, you can manage your standards centrally and efficiently. You can optimise your procurement processes and benefit from an integrated information and subscription service. This ensures you are always up to date and never miss any relevant developments.

Find out more about the benefits of effects 2.0

Recently Viewed

OVE EN 61094-3

Electroacoustics - Measurement microphones - Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique (IEC 61094-3:2016 + COR1:2016)

OVE HD 60364-7-708/AA

Low-voltage electrical installations -- Part 7-708: Requirements for special installations or locations - Caravan parks, camping parks and similar locations (Amendment)

ÖNORM EN ISO 1060-1

Plastics - Homopolymer and copolymer resins of vinyl chloride - Part 1: Designation system and basis for specifications (ISO 1060-1:1998)
€62.34
excl. USt.
€68.57
incl. 10% USt.
Standard
ONR CEN/TS 17731 - Growing media - Determination of specific parameters

Customize and purchase single-user license

€62.34
excl. USt.
€68.57
incl. 10% USt.
Free delivery

Subscribe to standards

Your shopping cart is empty

Regarding the newly released ISO 9001, we recommend:

Standard
ÖNORM EN ISO 9001 - Quality management systems - Requirements (ISO 9001:2026)
View details
Seminar [Live-Online]
€749.00
excl. USt.
€898.80
incl. 20% USt.
View details
Seminar [Hybrid]
€675.00
excl. USt.
€810.00
incl. 20% USt.
View details
€49.00
excl. USt.
€58.80
incl. 20% USt.
View details
€2,419.00
excl. USt.
€2,902.80
incl. 20% USt.
View details