Soil improvers and growing media - Determination of the aerobic biological activity - Part 1: Oxygen uptake rate (OUR)

This document describes a method to determine the aerobic biological activity of growing media and soil improvers or constituents thereof by measuring the oxygen uptake rate (OUR). The oxygen uptake rate is an indicator of the extent to which biodegradable organic matter is being broken down within a specified time period. The method is not suitable for material with a content of particle sizes > 10 mm exceeding 20 %.

Bodenverbesserungsmittel und Kultursubstrate - Bestimmung der aeroben biologischen Aktivität - Teil 1: Sauerstoffaufnahmerate (OUR)

Dieses Dokument beschreibt ein Verfahren zur Bestimmung der aeroben biologischen Aktivität von Kultursubstraten und Bodenverbesserungsmitteln oder von deren Bestandteilen durch die Messung der Sauerstoffaufnahmerate (OUR, en: oxygen uptake rate). Die Sauerstoffaufnahmerate ist ein Indikator für das Ausmaß, in dem biologisch abbaubare organische Substanz innerhalb einer festgelegten Zeitdauer abgebaut wird. Das Verfahren ist nicht für Material geeignet, dessen Gehalt an Korngrößen > 10 mm 20 % überschreitet.

Amendements du sol et supports de culture - Détermination de l'activité biologique aérobie - Partie 1 : Cinétique d'absorption de l'oxygène (OUR)

Le présent document décrit une méthode de détermination de l’activité biologique aérobie des supports de culture et des amendements du sol ou de leurs constituants par mesurage de la cinétique d’absorption de l’oxygène (OUR). La cinétique d’absorption de l’oxygène est un indicateur de l’importance de la dégradation de la matière organique biodégradable durant un intervalle de temps spécifié. La méthode ne convient pas à un matériau contenant plus de 20 % de particules d’une granulométrie > 10 mm.

Izboljševalci tal in rastni substrati - Določevanje aerobne biološke aktivnosti - 1. del: Stopnja porabe kisika

Ta evropski standard opisuje metodo za določevanje aerobne biološke aktivnosti izboljševalcev tal in rastnih substratov ali njihovih sestavin z merjenjem stopnje porabe kisika (OUR). Stopnja porabe kisika je kazalnik obsega razgradnje biološko razgradljive organske snovi v določenem časovnem obdobju. Metoda ni ustrezna za material, ki vsebuje več kot 20 % delcev > 10 mm.

General Information

Status
Published
Publication Date
14-Jan-2020
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
15-Jan-2020
Completion Date
15-Jan-2020

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SLOVENSKI STANDARD
SIST EN 16087-1:2020
01-marec-2020
Nadomešča:
SIST EN 16087-1:2012

Izboljševalci tal in rastni substrati - Določevanje aerobne biološke aktivnosti - 1.

del: Stopnja porabe kisika

Soil improvers and growing media - Determination of the aerobic biological activity - Part

1: Oxygen uptake rate (OUR)

Bodenverbesserungsmittel und Kultursubstrate - Bestimmung der aeroben biologischen

Aktivität - Teil 1: Sauerstoffaufnahme (OUR)

Amendements du sol et supports de culture - Détermination de l'activité biologique

aérobie - Partie 1 : Cinétique d'absorption de l'oxygène (OUR)
Ta slovenski standard je istoveten z: EN 16087-1:2020
ICS:
65.080 Gnojila Fertilizers
SIST EN 16087-1:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 16087-1:2020
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SIST EN 16087-1:2020
EN 16087-1
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2020
EUROPÄISCHE NORM
ICS 65.080 Supersedes EN 16087-1:2011
English Version
Soil improvers and growing media - Determination of the
aerobic biological activity - Part 1: Oxygen uptake rate
(OUR)

Amendements du sol et supports de culture - Bodenverbesserungsmittel und Substrate -

Détermination de l'activité biologique aérobie - Partie Bestimmung der aeroben biologischen Aktivität - Teil

1 : Cinétique d'absorption de l'oxygène (OUR) 1: Sauerstoffaufnahme (OUR)
This European Standard was approved by CEN on 21 October 2019.

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. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists 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, 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

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16087-1:2020 E

worldwide for CEN national Members.
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SIST EN 16087-1:2020
EN 16087-1:2020 (E)
Contents Page

European Foreword ...................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 4

2 Normative references .................................................................................................................................... 4

3 Terms and Definitions ................................................................................................................................... 4

4 Principle ............................................................................................................................................................. 4

5 Apparatus ........................................................................................................................................................... 4

5.1 Testing facility .................................................................................................................................................. 4

5.2 Pressure transducer....................................................................................................................................... 4

5.3 CO -absorbent containing unit .................................................................................................................. 5

5.4 Reaction vessel ................................................................................................................................................. 5

5.5 Mixing device .................................................................................................................................................... 5

5.6 Balance ................................................................................................................................................................ 5

5.7 pH meter ............................................................................................................................................................. 5

5.8 Dispenser ........................................................................................................................................................... 5

5.9 Glassware ........................................................................................................................................................... 5

5.10 Sieve ..................................................................................................................................................................... 5

6 Reagents ............................................................................................................................................................. 5

6.1 Water of class 3 ................................................................................................................................................ 5

6.2 pH buffer............................................................................................................................................................. 5

6.3 Macronutrient solution ................................................................................................................................. 5

6.4 Micronutrient solution .................................................................................................................................. 5

6.5 Complete nutrient solution ......................................................................................................................... 6

6.6 Nitrification inhibitor .................................................................................................................................... 6

6.7 CO -absorbent ................................................................................................................................................. 6

6.8 NaOH (0,5 mol/l) ............................................................................................................................................. 6

6.9 HCI (0,5 mol/l).................................................................................................................................................. 6

7 Procedure........................................................................................................................................................... 6

7.1 Sample preparation ........................................................................................................................................ 6

7.2 Determination of moisture content and organic matter content .................................................. 6

7.3 Starting the procedure .................................................................................................................................. 6

7.4 Respiration measurement ........................................................................................................................... 7

8 Calculations ....................................................................................................................................................... 8

8.1 Theoretical background ............................................................................................................................... 8

8.2 Calculations ....................................................................................................................................................... 8

9 Test report ......................................................................................................................................................... 9

Annex A (informative) Validation ....................................................................................................................... 10

Annex B (informative) Specific information on the OUR-test ................................................................... 11

Bibliography ................................................................................................................................................................. 13

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SIST EN 16087-1:2020
EN 16087-1:2020 (E)
European Foreword

This document (EN 16087-1:2020) has been prepared by Technical Committee CEN/TC 223 “Soil

improvers and growing media”, the secretariat of which is held by NEN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by July 2020, and conflicting national standards shall be

withdrawn at the latest by July 2020.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 16087-1:2011.
The main changes compared with the previous edition are as follows:
 For the balance (5.6) requirements are added;
 Clarification of sample preparation (7.1) is added;
 Formula 3 and 5 are corrected;
 The figures in Annex B have been updated;
 The Bibliography has been corrected.

SAFETY PRECAUTIONS — Care should be taken when handling substances of caustic nature or samples

that may contain sharps or is of a dusty nature.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: 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 the United

Kingdom.
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SIST EN 16087-1:2020
EN 16087-1:2020 (E)
1 Scope

This document describes a method to determine the aerobic biological activity of growing media and soil

improvers or constituents thereof by measuring the oxygen uptake rate (OUR). The oxygen uptake rate

is an indicator of the extent to which biodegradable organic matter is being broken down within a

specified time period. The method is not suitable for material with a content of particle sizes > 10 mm

exceeding 20 %.
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.

EN 13039, Soil improvers and growing media – Determination of organic matter content and ash

EN 13040, Soil improvers and growing media – Sample preparation for chemical and physical tests,

determination of dry matter content, mois
...

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