oSIST prEN 17925:2022
(Main)Soil improvers and growing media - Determination of temperature and time profile during composting and digestion
Soil improvers and growing media - Determination of temperature and time profile during composting and digestion
This European Standard specifies methods for determining temperature and time profiles during composting and anaerobic digestion for the production of compost and digestate.
The process monitoring is an organized check and recording of the temperature during a specific time of the composting and anaerobic digestion process.
This standard only applies to composting and anaerobic digestion.
This standard is intended to be used by manufacturers, and enforcement agencies for the purpose of manufacturing control.
The requirements of this standard may differ from national legal requirements for the production process of compost and digestate.
Bodenverbesserungsmittel und Kultursubstrate - Bestimmung des Temperatur- und Zeitprofils bei der Kompostierung und Vergärung von Abfällen
Dieses Dokument legt Verfahren zur Bestimmung der Temperatur- und Zeitprofile während der Kompostierung und Vergärung zur Herstellung von Kompost und Gärrückständen fest.
Die Prozessüberwachung besteht aus dem organisierten Überprüfen und Aufzeichnen der Temperatur zu einem bestimmten Zeitpunkt während des Kompostier- und Vergärungsprozesses.
Dieses Dokument gilt nur für Kompostierung und Vergärung.
Dieses Dokument ist zur Anwendung durch Hersteller und Überwachungsbehörden bei der Kontrolle von Herstellungsprozessen vorgesehen.
Die Anforderungen dieses Dokuments können von den nationalen gesetzlichen Vorgaben bezüglich der Produktion von Kompost und Gärrückständen abweichen.
Amendements du sol et supports de culture - Détermination des profils temps/température pendant le compostage et la digestion
Le présent document spécifie des méthodes pour déterminer les profils température/temps lors du compostage et de la digestion anaérobie pour la production de compost et de digestat.
La surveillance du processus est une vérification et un enregistrement organisés de la température du processus de compostage et de digestion anaérobie, pendant une durée spécifique.
Le présent document s’applique uniquement au compostage et à la digestion anaérobie.
Le présent document est destiné à être utilisé par les fabricants et les agences de conformité pour les besoins du contrôle de fabrication.
Les exigences du présent document peuvent différer des exigences légales nationales pour le processus de production de compost et de digestat.
Izboljševalci tal in rastni substrati - Določanje temperaturnega in časovnega profila med kompostiranjem in razkrojem odpadkov
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 17925:2022
01-december-2022
Izboljševalci tal in rastni substrati - Določanje temperaturnega in časovnega
profila med kompostiranjem in razkrojem odpadkov
Soil improvers and growing media - Determination of temperature and time profile during
composting and digestion
Bodenverbesserungsmittel und Kultursubstrate - Bestimmung des Temperatur- und
Zeitprofils bei der Kompostierung und Vergärung von Abfällen
Ta slovenski standard je istoveten z: prEN 17925
ICS:
65.080 Gnojila Fertilizers
oSIST prEN 17925:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN 17925:2022
---------------------- Page: 2 ----------------------
oSIST prEN 17925:2022
DRAFT
EUROPEAN STANDARD
prEN 17925
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2022
ICS 65.080
English Version
Soil improvers and growing media - Determination of
temperature and time profile during composting and
digestion
Bodenverbesserungsmittel und Kultursubstrate -
Bestimmung des Temperatur- und Zeitprofils bei der
Kompostierung und Vergärung von Abfällen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 223.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.
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, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
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. prEN 17925:2022 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 17925:2022
prEN 17925:2022
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Requirements . 6
4.1 General. 6
4.2 Process requirements in composting plants . 6
4.3 Process requirements in anaerobic digestion plants . 7
5 Apparatus . 7
6 Procedure . 7
6.1 General. 7
6.2 Measurement of the temperature directly in the material of the composting system 8
6.3 Measurement of the temperature indirectly in the air of composting systems . 8
6.4 Measurement of the temperature in anaerobic digestion plants. 8
6.5 Documentation of temperature . 9
6.6 Measurement constraints . 9
2
---------------------- Page: 4 ----------------------
oSIST prEN 17925:2022
prEN 17925:2022
European foreword
This document (prEN 17925:2022) has been prepared by Technical Committee CEN/TC 223 “Soil
improvers and growing media”, the secretariat of which is held by NEN.
This document is currently submitted to the CEN enquiry.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association.
3
---------------------- Page: 5 ----------------------
oSIST prEN 17925:2022
prEN 17925:2022
Introduction
This document is applicable for the measurement of temperature during the composting and anaerobic
digestion process.
In composting plants, a high biological activity with corresponding self-heating of the biodegradable
material is achieved by a suitable process control under favourable oxygen and humidity conditions. The
temperature measurements are used to check the sanitation that takes place in the process.
In anaerobic digestion plants, the sanitation is achieved by a thermophilic anaerobic digestion process or
a pasteurization step. The temperature measurement serves as proof of the adherence to the given time–
temperature specifications.
4
---------------------- Page: 6 ----------------------
oSIST prEN 17925:2022
prEN 17925:2022
1 Scope
This document specifies methods for determining temperature and time profiles during composting and
anaerobic digestion for the production of compost and digestate.
The process monitoring is an organized check and recording of the temperature during a specific time of
the composting and anaerobic digestion process.
This document only applies to composting and anaerobic digestion.
This document is intended to be used by manufacturers and enforcement agencies for the purpose of
manufacturing control.
The requirements of this document can differ from national legal requirements for the production
process of compost and digestate.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
CEN/TS 17732, Soil improvers and growing media - Terminology
3 Terms and definitions
For the purposes of this document, the terms and definitions given in CEN/TS 17732 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org
3.1
additives
materials or substances which are used to improve the process performance and environmental
performance of the composting and/or anaerobic digestion process
3.2
anaerobic digestion
controlled decomposition of biodegradable materials which is predominately anaerobic and at
temperatures suitable for mesophilic or thermophilic bacteria
3.3
batch
quantity of goods manufactured by the same process under the same conditions, at the same time, and
labelled in the same manner and which are assumed to have the same characteristics to be sampled using
a particular sampling plan
3.4
compost
solid particulate material that is the result of a thermophilic aerobic composting of biodegradable matter
by microorganisms, which has been sanitized and stabilized
5
---------------------- Page: 7 ----------------------
oSIST prEN 17925:2022
prEN 17925:2022
3.5
composting
controlled decomposition
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.