oSIST prEN 16087-2:2025

SLOVENSKI STANDARD
01-december-2025
Izboljševalci tal in rastni substrati - Določanje aerobne biološke razgradljivosti
organskih snovi - 2.del: Preskus samodejnega segrevanja komposta
Soil improvers and growing media - Determination of the aerobic biological degradation
rate of organic matter - Part 2: Self heating test for compost
Bodenverbesserungsmittel und Kultursubstrate - Bestimmung der aeroben biologischen
Abbaurate organischer Substanz - Teil 2: Selbsterhitzungstest für Kompost
Amendements du sol et supports de culture - Détermination de la cinétique de
dégradation biologique aérobie de la matière organique - Partie 2 : Test d’auto-
échauffement pour compost
Ta slovenski standard je istoveten z: prEN 16087-2
ICS:
65.080 Gnojila Fertilizers
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2025
ICS 65.080 Will supersede EN 16087-2:2011
English Version
Soil improvers and growing media - Determination of the
aerobic biological degradation rate of organic matter - Part
2: Self heating test for compost
Amendements du sol et supports de culture - Bodenverbesserungsmittel und Kultursubstrate -
Détermination de la cinétique de dégradation Bestimmung der aeroben biologischen Abbaurate
biologique aérobie de la matière organique - Partie 2 : organischer Substanz - Teil 2: Selbsterhitzungstest für
Test d'auto-échauffement pour compost Kompost
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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16087-2:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 4
5 Apparatus . 4
6 Sampling . 4
7 Procedure . 4
7.1 General. 4
7.2 Sample preparation . 5
7.2.1 General. 5
7.2.2 Fist test . 5
7.3 Determination of self-heating . 5
8 Expression of results . 6
9 Test report . 6
10 Validation of the method . 7
10.1 Validation in accordance with ISO 5725-2. 7
10.2 Performance characteristics. 7
Annex A (informative) Performance characteristics of the method . 8
Bibliography . 10

European foreword
This document (prEN 16087-2:2025) 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 CEN Enquiry.
This document will supersede EN 16087-2:2011.
EN 16087-2:2011:
— A more precise description of the fist test was added.
This document has been prepared under a standardization request given to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
1 Scope
This document specifies a method to determine the aerobic biological activity using a self-heating test.
This method is only applicable to composted material.
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 17732:2022, Soil improvers and growing media — Terminology
EN 12579:2024, Soil improvers and growing media — Sampling
3 Terms and definitions
For the purposes of this document, the terms and definitions given in CEN/TS 17732:2022 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/
4 Principle
Measurement of self-heating in a Dewar vessel and measurement of the maximum temperature, where
the temperature is an indicator of the state of aerobic biological activity.
5 Apparatus
5.1 Dewar vessel, with a volume of 1,5 l and an internal diameter of 100 mm ± 3 mm.
5.2 Temperature measurement device, capable of recording a maximum temperature with an
accuracy of ± 2 °C.
5.3 Sieve, square aperture with a 10 mm mesh size.
5.4 Temperature controlled room or climate cabinet, with a temperature of 20 °C ± 2 °C.
6 Sampling
Sampling is not part
...