CEN/TS 17721:2022
(Main)Plant biostimulants - Determination of the pH for liquid microbial plant biostimulants/pH in microbial products - Determination of pH
Plant biostimulants - Determination of the pH for liquid microbial plant biostimulants/pH in microbial products - Determination of pH
This document specifies a method for laboratory measurement of the pH value in liquid microbial plant biostimulants, using pH electrodes with a glass membrane.
From the scope of this document plant biostimulants other than microbial plant biostimulants are excluded because there is no essential requirement in the Regulation (EU) 2019/1009 [1] for measuring the pH of non-microbial plant biostimulants.
Pflanzen-Biostimulanzien - Bestimmung des pH Wertes für flüssige mikrobielle Pflanzen-Biostimulanzien/pH Wert in mikrobiellen Produkten - Bestimmung des pH Wertes
Dieses Dokument legt ein Verfahren zur Messung des pH Wertes in flüssigen mikrobiellen Pflanzen-Biostimulanzien im Labor unter Verwendung von pH Elektroden mit einer Glasmembran fest.
Andere Pflanzen-Biostimulanzien als mikrobielle Pflanzen-Biostimulanzien gehören nicht zum Anwendungsbereich dieses Dokuments, da die Verordnung (EU) 2019/1009[1] keine grundlegenden Anforderungen hinsichtlich der Messung des pH Wertes von nicht-mikrobiellen Pflanzen-Biostimulanzien enthält.
Biostimulants des végétaux - Détermination du pH des biostimulants microbiens liquides des végétaux/pH dans les produits microbiens - Détermination du pH
Le présent document spécifie une méthode de mesure en laboratoire de la valeur du pH dans les biostimulants microbiens des végétaux sous forme liquide, à l’aide d’électrodes de pH avec une membrane en verre.
Les biostimulants des végétaux autres que les biostimulants microbiens des végétaux sont exclus du domaine d’application du présent document, car il n’existe pas d’exigence essentielle dans le Règlement (UE) 2019/1009 [1] de mesure du pH des biostimulants des végétaux non microbiens.
Rastlinski biostimulanti - Določevanje pH-vrednosti za tekoče mikrobne biostimulante/mikrobne proizvode - Določevanje pH-vrednosti
Ta dokument določa metodo za laboratorijsko merjenje pH-vrednosti v tekočih mikrobnih rastlinskih biostimulantih s pH-elektrodami, ki imajo stekleno membrano.
Rastlinski biostimulanti, razen mikrobnih rastlinskih biostimulantov, so izključeni s področja uporabe tega dokumenta, ker v Uredbi [1] ni bistvene zahteve za merjenje pH nemikrobnih rastlinskih biostimulantov.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST-TS CEN/TS 17721:2023
01-februar-2023
Rastlinski biostimulanti - Določevanje pH-vrednosti za tekoče mikrobne
biostimulante/mikrobne proizvode - Določevanje pH-vrednosti
Plant biostimulants - Determination of the pH for liquid microbial plant biostimulants/pH in
microbial products - Determination of pH
Pflanzen-Biostimulanzien - Bestimmung des pH Wertes für flüssige mikrobielle Pflanzen-
Biostimulanzien/pH Wert in mikrobiellen Produkten - Bestimmung des pH Wertes
Biostimulants des végétaux - Détermination du pH des biostimulants microbiens liquides
des végétaux/pH dans les produits microbiens - Détermination du pH
Ta slovenski standard je istoveten z: CEN/TS 17721:2022
ICS:
65.080 Gnojila Fertilizers
SIST-TS CEN/TS 17721:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST-TS CEN/TS 17721:2023
---------------------- Page: 2 ----------------------
SIST-TS CEN/TS 17721:2023
CEN/TS 17721
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
March 2022
TECHNISCHE SPEZIFIKATION
ICS 65.080
English Version
Plant biostimulants - Determination of the pH for liquid
microbial plant biostimulants/pH in microbial products -
Determination of pH
Biostimulanzien für die pflanzliche Anwendung -
Bestimmung des pH-Wertes für flüssige mikrobielle
Biostimulanzien für die pflanzliche Anwendung/pH-
Wert in mikrobiellen Produkten - Bestimmung des pH-
Wertes
This Technical Specification (CEN/TS) was approved by CEN on 3 January 2022 for provisional application.
The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.
CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 17721:2022 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST-TS CEN/TS 17721:2023
CEN/TS 17721:2022 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 10
5 Apparatus and materials . 10
5.1 General . 10
5.2 pH measuring apparatus . 10
5.3 Water . 11
5.4 pH meter . 11
5.5 pH electrode .
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.