CEN/TR 14520:2007

SLOVENSKI STANDARD
01-januar-2008
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SIST-TP CEN/TR 14520:2005
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Packaging - Reuse - Methods for assessing the performance of a reuse system
Verpackung - Wiederverwendung - Verfahren zur Einschätzung der Leistungsfähigkeit
eines Wiederverwendungssystems
Emballage - Réutilisation - Méthode d'évaluation de la performance d'un systeme de
réutilisation
Ta slovenski standard je istoveten z: CEN/TR 14520:2007
ICS:
13.030.50 Recikliranje Recycling
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
July 2007
ICS 13.030.50; 55.180.40
English Version
Packaging - Reuse - Methods for assessing the performance of
a reuse system
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 25 May 2007. It has been drawn up by the Technical Committee CEN/TC 261.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, 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
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 14520:2007: 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 in the system during the calculation period .6
3.1.3 Calculation of reuse ratio.7
3.1.4 Calculation of average number of rotations in the system during the packaging lifetime.8
3.2 Hybrid system.8
4 Factors influencing the calculation .8
4.1 Selection of calculation period.8
4.2 Selection of measurement point .9
4.3 Market fluctuation and product lifecycle.9
Annex A (informative) Trips and rotations.10
Annex B (informative) Examples of average number of rotations and reuse ratio calculations .11
B.1 Average number of rotations.11
B.1.1 Example 1.11
B.1.2 Example 2.11
B.1.3 Example 3.12
B.1.4 Example 4.12
B.2 Reuse ratio - General example:.13
B.3 Rotations during the packaging lifetime .13
Bibliography .14

Foreword
This document (CEN/TR 14520:2007) has been prepared by Technical Committee CEN/TC 261 “Packaging”,
the secretariat of which is held by AFNOR.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

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 average number of rotations during a calculation period and the lifetime; 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 document, the following terms and definitions apply.
2.1
trip
transfer of packaging, from filling/loading to emptying/unloading. A trip can 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 the number of movements of reused packaging to the number of
movements of all the packaging 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
NOTE This should be of adequate duration to smooth out the effects of seasonal variation, product lifetime,
packaging inputs and other factors which can 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 4.2.
2.8
newly manufactured packaging
newly purchased packaging entering the system for the first time to increase the population or replace all
types of losses
2.9
system adjustment
increase or decrease of population of a packaging type due to market fluctuation
2.10
system losses
all types of losses of packaging from the system
2.11
closed loop system
system in which reusable packaging is circulated by a company or a co-operating group of companies
2.12
open loop system
system in which reusable packaging circulates amongst unspecified companies
2.13
hybrid system
system consisting of two parts:
a) reusable packaging, remaining with the end user, for which there exists no redistribution system leading to
commercial refilling;
b) one way packaging, used as an auxiliary product to transport the contents to the reusable packaging
2.14
lifetime
period from the first use of the packaging until it is no longer in use and becomes waste
3 Methods of calculation
3.1 Open and closed loop systems
3.1.1 Principle
The performance of a reuse system can be evaluated by calculating either the average number of rotations
(see definition 2.2) or the reuse ratio. The population figure needs to be known accurately to perform the
calculation of the average number of rotations. In the cases where this value can not be known, which
includes most open loop systems, only the reuse ratio can be calculated.
NOTE The packer/filler making the calculation will require the co-operation of all other partners in the system for that
product. See EN 13429:2004, 5.1.
3.1.2 Calculation of average number of rotations in the system during the calculation period
The simple equation to dete
...