CEN/TR 14520:2005

SLOVENSKI STANDARD
01-april-2005
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Packaging - Reuse - Methods for assessing the performance of a reuse system
Verpackung - Wiederverwendung - Verfahren zur Bestimmung der Anzahl von
Produktwegen oder Kreislaufdurchgängen
Emballage - Réutilisation - Méthode d'évaluation de la performance d'un systeme de
réutilisation
Ta slovenski standard je istoveten z: CEN/TR 14520:2005
ICS:
55.020 Pakiranje in distribucija blaga Packaging and distribution of
na splošno goods in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL REPORT
CEN/TR 14520
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
February 2005
ICS 55.020
English version
Packaging - Reuse - Methods for determining the number of
trips or rotations
Emballage - Réutilisation - Méthode d'évaluation de la Verpackung - Wiederverwendung - Verfahren zur
performance d'un système de réutilisation Einschätzung der Leistungsfähigkeit eines
Wiederverwendungssystems
This Technical Report was approved by CEN on 23 October 2004. It has been drawn up by the Technical Committee CEN/TC 261.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 14520:2005: E
worldwide for CEN national Members.

Contents Page
Foreword.3
Introduction .4
1 Scope .5
2 Terms and definitions .5
3 Methods of calculation.6
3.1 Open and closed loop systems.6
3.1.1 Principle.6
3.1.2 Calculation of average number of rotations .6
3.1.3 Calculation of reuse ratio.7
3.1.4 Packaging lifetime .7
3.2 Hybrid system .8
4 Factors influencing the calculation .8
4.1 Selection of calculation period.8
4.2 Selection of measurement point .8
4.3 Market Fluctuation and product lifecycle.8
Annex A (informative) Trips and Rotations .9
Annex B (informative) Example of reuse ratio calculation.10
Bibliography .11

Foreword
This document (CEN/TR 14520:2005) has been prepared by Technical Committee CEN/TC 261 “Packaging”,
the secretariat of which is held by AFNOR.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this CEN Technical Report: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
Introduction
The methods set out in this Technical Report are both capable of giving realistic results in the relevant
circumstances. Experience over time with the results will indicate the levels of performance that are being
achieved.
1 Scope
This Technical Report gives methods of assessing the performance of a reuse system related to the
proportion of reused packaging in use. This may be measured by:
 the number of rotations or;
 the reuse ratio.
The choice of method will vary according to the type of reuse system and information available.
2 Terms and definitions
For the purposes of this Technical Report, the following terms and definitions apply.
2.1
trip
transfer of packaging, from filling/loading to emptying/unloading. A trip may be part of a rotation
2.2
rotation
cycle undergone by reusable packaging from filling/loading to filling/loading. A rotation will always contain a
trip
2.3
population
total number of a packaging type, empty or filled, in that whole reuse system
2.4
claiming company
packer/filler who is making a claim of ‘reusable’ for a type of packaging, in the circumstances of its intended
use
2.5
reuse ratio
ratio, expressed as a percentage, of reused packaging to the throughput at the measurement point (see
definition 2.7) over the calculation period (see definition 2.6)
2.6
calculation period
period over which the number of trips or reuse ratio is calculated. This should be of adequate duration to
smooth out the effects of seasonal variation, product lifetime, packaging inputs and other factors which may
affect the calculation
2.7
measurement point
point in the rotation loop at which the information for the calculation is gathered
NOTE Examples of some possible measurement points are given in clause 4.2.
2.8
newly manufactured packaging
newly purchased packaging entering the system for the first time to increase the popul
...