1 Scope This European Standard defines requirements for the end of life handling, transportation, storage, sorting and treatment of WEEE household appliances containing volatile fluoroc
Trang 1BSI Standards Publication
Collection, logistics &
treatment requirements for end-of-life household appliances containing volatile fluorocarbons or volatile
hydrocarbons
Trang 2incorporating corrigenda November 2012 and December 2014.
The UK participation in its preparation was entrusted to Technical Committee GEL/111, Electrotechnical environment committee
A list of organizations represented on this committee can be obtained
on request to its secretary
This publication does not purport to include all the necessary provisions
of a contract Users are responsible for its correct application
© The British Standards Institution 2015
Published by BSI Standards Limited 2015ISBN 978 0 580 89297 4
Amendments/corrigenda issued since publication
31 May 2013 Implementation of CENELEC corrigendum
November 2012 Note removed from the Scope
31 January 2015 This corrigendum renumbers BS EN 50574:2012 as
BS EN 50574-1:2012
Trang 3Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members
Ref No EN 50574:2012 E
ICS 13.030.30; 13.030.40; 97.030
English version
Collection, logistics & treatment requirements for end-of-life household appliances containing volatile fluorocarbons or volatile hydrocarbons
Exigences de collecte, logistique et
traitement pour la fin de vie des appareils
domestiques contenant des
fluorocarbures volatils ou des
hydrocarbures volatils
Anforderungen an die Sammlung, Logistik und Behandlung von Altgeräten aus dem Haushalt die flüchtige
Fluorkohlenwasserstoffe oder flüchtige Kohlenwasserstoffe enthalten
This European Standard was approved by CENELEC on 2012-03-26 CENELEC 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 CENELEC 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 CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom
Trang 4Contents
Foreword 3
Introduction 4
1
Scope 52
Normative references 53
Abbreviations, terms and definitions 53.1
Abbreviations 53.2
Terms and definitions 64
Requirements prior to treatment 94.1
General 94.2
Site requirements 94.3
Transportation 94.4
Sorting 104.5
Compliance criteria 105
Requirements for treatment facilities 105.1
General 105.2
Step 1 treatment 115.3
Step 2 treatment 115.4
Step 3 treatment 115.5
Monitoring 125.6
Regular reporting 135.7
Compliance criteria 146
Responsible take-back party General 14Annex A (normative) Methodology for running performance tests for step 1 treatment 16
A.1
Introduction 16A.2
Operating conditions, test preparation, and test procedures of the performance test 16A.3
Calculations for performance test step 1 18Annex B (normative) Methodology for running performance tests for step 2 treatment 22
B.1
Introduction 22B.2
Operating conditions, test preparation, and test procedures of the performance test 22B.3
Calculations performance test step 2 25Annex C (informative) Overview of monitoring requirements at treatment facilities 32
Annex D (informative) Sorting requirements for heat pump tumble driers - Instructions for identifying tumble dryers containing fluorinated refrigerants 34
D.1
Introduction 34D.2
Identification of heat pump tumble dryers with VFC 34 Trang 5Contents
Foreword 3
Introduction 4
1
Scope 52
Normative references 53
Abbreviations, terms and definitions 53.1
Abbreviations 53.2
Terms and definitions 64
Requirements prior to treatment 94.1
General 94.2
Site requirements 94.3
Transportation 94.4
Sorting 104.5
Compliance criteria 105
Requirements for treatment facilities 105.1
General 105.2
Step 1 treatment 115.3
Step 2 treatment 115.4
Step 3 treatment 115.5
Monitoring 125.6
Regular reporting 135.7
Compliance criteria 146
Responsible take-back party General 14Annex A (normative) Methodology for running performance tests for step 1 treatment 16
A.1
Introduction 16A.2
Operating conditions, test preparation, and test procedures of the performance test 16A.3
Calculations for performance test step 1 18Annex B (normative) Methodology for running performance tests for step 2 treatment 22
B.1
Introduction 22B.2
Operating conditions, test preparation, and test procedures of the performance test 22B.3
Calculations performance test step 2 25Annex C (informative) Overview of monitoring requirements at treatment facilities 32
Annex D (informative) Sorting requirements for heat pump tumble driers - Instructions for identifying tumble dryers containing fluorinated refrigerants 34
D.1
Introduction 34D.2
Identification of heat pump tumble dryers with VFC 34Foreword
This document (EN 50574:2012) was prepared by CLC/TC 111X/WG 04, "Environment - End
of life requirements for household appliances containing volatile fluorinated substances or volatile hydrocarbons"
The following dates are fixed:
• latest date by which this document has to
be implemented at national level by publication of an identical national standard
or by endorsement
(dop) 2013-03-26
• latest date by which the national standards conflicting with this document have to
be withdrawn
(dow) 2015-03-26
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights
Trang 6Introduction
This document establishes requirements for the transportation, sorting and treatment of household appliances containing volatile fluorocarbons or volatile hydrocarbons after they have been discarded as waste electrical and electronic equipment (WEEE)
The methodologies for the inspection of the performance of treatment systems for household refrigerators and freezers in step 2 treatment was developed in the early 1990s The methodologies used for performance tests since then have been created to evaluate the efficiency of treatment plants designed to recover VFCs from insulating foam The evaluation criteria used for performance testing are based on the VFC content of household refrigerators and freezers that were produced in the 1970s and 1980s
The increasing appearance on the recycling market of appliances with VFC-free insulation (foamed with VHC) has had a strong impact on the general framework conditions for performance testing over the last few years In the early 1990s the quantity of R11 (a VFC) was reduced by approximately 50 % R11 was then largely phased out in favour of VHCs in the early 2000s
Consequently the expected values from step 2 treatment that had been achieved in the 1990s are no longer applicable for the appliances that are recycled today Nowadays more and more VFC-free appliances and appliances containing reduced quantities of VFC come back for recycling
The WEEE within the scope of this standard could contain substances that if released untreated to the atmosphere could contribute to ozone depletion or global warming The substances may be present in the refrigerating system and in insulating foam This standard seeks to reduce the environmental impact caused by such WEEE by defining requirements covering sorting, transportation, handling and treatment It covers how substances with a high global warming potential and/or ozone depletion potential are removed from WEEE and subsequently treated so as to significantly reduce environmental impacts
By addressing the above issues this standard supports the WEEE Directive 2002/96/EC
Trang 7EN 50574:2012 – 4 –
Introduction
This document establishes requirements for the transportation, sorting and treatment of
household appliances containing volatile fluorocarbons or volatile hydrocarbons after they
have been discarded as waste electrical and electronic equipment (WEEE)
The methodologies for the inspection of the performance of treatment systems for household
refrigerators and freezers in step 2 treatment was developed in the early 1990s The
methodologies used for performance tests since then have been created to evaluate the
efficiency of treatment plants designed to recover VFCs from insulating foam The evaluation
criteria used for performance testing are based on the VFC content of household refrigerators
and freezers that were produced in the 1970s and 1980s
The increasing appearance on the recycling market of appliances with VFC-free insulation
(foamed with VHC) has had a strong impact on the general framework conditions for
performance testing over the last few years In the early 1990s the quantity of R11 (a VFC)
was reduced by approximately 50 % R11 was then largely phased out in favour of VHCs in
the early 2000s
Consequently the expected values from step 2 treatment that had been achieved in the 1990s
are no longer applicable for the appliances that are recycled today Nowadays more and more
VFC-free appliances and appliances containing reduced quantities of VFC come back for
recycling
The WEEE within the scope of this standard could contain substances that if released
untreated to the atmosphere could contribute to ozone depletion or global warming The
substances may be present in the refrigerating system and in insulating foam This standard
seeks to reduce the environmental impact caused by such WEEE by defining requirements
covering sorting, transportation, handling and treatment It covers how substances with a high
global warming potential and/or ozone depletion potential are removed from WEEE and
subsequently treated so as to significantly reduce environmental impacts
By addressing the above issues this standard supports the WEEE Directive 2002/96/EC
1 Scope
This European Standard defines requirements for the end of life handling, transportation, storage, sorting and treatment of WEEE household appliances containing volatile fluorocarbons, volatile hydrocarbons, or both Furthermore, this European Standard only applies to WEEE household appliances that use heat-transfer media other than water e.g refrigerators, freezers, heat pump tumble dryers, de-humidifiers and portable air conditioners Discarded appliances covered by this European Standard will have been deposited at a collection facility as domestic WEEE
The European Standard describes requirements for the removal of volatile fluorocarbons and volatile hydrocarbons These substances can be found as refrigerant in the refrigerating system (partly dissolved in the oil) and as blowing agent in the insulating foam of discarded household appliances
NOTE This European Standard has been prepared to fulfil the requirements of Directive 2002/96/EC but does not preclude the procedures described herein from being used to treat appliances that are not commonly found in private households
It defines requirements pertaining to producers, WEEE compliance schemes (acting on behalf
of producers) and waste treatment facilities so as to ensure the provisions of applicable national laws resulting from European legislation are fulfilled These requirements are intended to define procedures, parameters based on the best available technologies at the time of the publication; however, provisions laid down by national regulatory bodies will continue to additionally apply This standard only describes the results to be achieved, it does not specify how they are to be achieved nor does it prescribe the use of any specific technology
This European Standard does not generally cover collection facilities, nor does it cover how appliances arrive at these facilities However, this standard does address the sorting of heat-pump tumble dryers from other types of tumble dryer, a task that could be performed at a collection facility
This European Standard defines requirements relating to handling, transportation, sorting and treatment of WEEE covered by the scope of this standard This standard does not include any activity prior to delivery to a logistic facility
2 Normative references
None
3 Abbreviations, terms and definitions
For the purposes of this document, the following terms and definitions apply
3.1 Abbreviations 3.1.1
WEEE
waste electrical and electronic equipment
3.1.2 CFC
chlorofluorocarbon
3.1.3 HCFC
The European Standard describes requirements for the removal of volatile fluorocarbons and volatile hydrocarbons These substances can be found as refrigerant in the refrigerating system (partly dissolved in the oil) and as blowing agent in the insulating foam of discarded household appliances
NOTE This European Standard has been prepared to fulfil the requirements of Directive 2002/96/EC but does not preclude the procedures described herein from being used to treat appliances that are not commonly found in private households
It defines requirements pertaining to producers, WEEE compliance schemes (acting on behalf
of producers) and waste treatment facilities so as to ensure the provisions of applicable national laws resulting from European legislation are fulfilled These requirements are intended to define procedures, parameters based on the best available technologies at the time of the publication; however, provisions laid down by national regulatory bodies will continue to additionally apply This standard only describes the results to be achieved, it does not specify how they are to be achieved nor does it prescribe the use of any specific technology
This European Standard does not generally cover collection facilities, nor does it cover how appliances arrive at these facilities However, this standard does address the sorting of heat-pump tumble dryers from other types of tumble dryer, a task that could be performed at a collection facility
This European Standard defines requirements relating to handling, transportation, sorting and treatment of WEEE covered by the scope of this standard This standard does not include any activity prior to delivery to a logistic facility
2 Normative references
None
3 Abbreviations, terms and definitions
For the purposes of this document, the following terms and definitions apply
3.1 Abbreviations 3.1.1
WEEE
waste electrical and electronic equipment
3.1.2 CFC
chlorofluorocarbon
3.1.3 HCFC
hydrochlorofluorocarbon
Trang 8Note 2 to entry: Collection facilities are typically registered, listed, or otherwise approved or designated in accordance with the national legislation implementing Directive 2002/96/EC (the WEEE Directive)
responsible take-back party
organisation that both a) arranges for the physical delivery of WEEE from a collection facility
or logistics facility to a treatment facility and b) ensures that environmentally sound transport and treatment is performed on behalf of producers
Note 1 to entry: Different countries have different names for responsible take-back parties
Note 2 to entry: Depending on the particular legislative provisions, The responsible take-back party could be the producer or a second party acting on their behalf (such as a WEEE Compliance Scheme)
3.2.5
handling
activity where WEEE is physically moved by workers or equipment for the intended purpose of storage, transport or treatment
Trang 9Note 1 to entry: The term “WEEE from private households” is defined in Directive 2002/96/EC (the WEEE Directive)
and the terms “collection” and “separate collection” are defined in Directive 2008/98/EC (the Waste Framework
Directive)
Note 2 to entry: Collection facilities are typically registered, listed, or otherwise approved or designated in
accordance with the national legislation implementing Directive 2002/96/EC (the WEEE Directive)
3.2.2
logistics facility
location for receiving WEEE in order to sort, store, and prepare for transport, with the
intention to deliver to treatment facilities
3.2.3
storage
locating WEEE temporary prior to treatment
3.2.4
responsible take-back party
organisation that both a) arranges for the physical delivery of WEEE from a collection facility
or logistics facility to a treatment facility and b) ensures that environmentally sound transport
and treatment is performed on behalf of producers
Note 1 to entry: Different countries have different names for responsible take-back parties
Note 2 to entry: Depending on the particular legislative provisions, The responsible take-back party could be the
producer or a second party acting on their behalf (such as a WEEE Compliance Scheme)
3.2.5
handling
activity where WEEE is physically moved by workers or equipment for the intended purpose of
storage, transport or treatment
3.2.6 transport
delivery of WEEE from a collection facility or a logistics facility to a treatment facility
3.2.7 treatment
Note 1 to entry: Directive 2002/96/EC defines “treatment” as:
“any activity that takes place after WEEE has been handed over to a facility for depollution, disassembly, shredding, recovery or preparation for disposal and any other operation carried out for the recovery and/or the disposal of WEEE”
3.2.8 treatment facility
location where WEEE undergoes treatment
3.2.9 step 1 treatment
removal of VFC, VHC and oil from the refrigerating system
Note 1 to entry: Other components (i.e compressors cable, glass shelves, plastic parts, mercury switches, capacitors) can also be removed during step 1 treatment
3.2.10 step 2 treatment
removal of VFC, VHC from insulating foam
Note 1 to entry: Other fractions (i.e ferrous metals, non-ferrous metals, plastics, PU foam) can also be separated during step 2 treatment
Note 2 to entry: Step 2 treatment is not applicable for heat pump tumble dryers, de-humidifiers and portable air conditioners if they do not contain insulating foam
3.2.11 step 3 treatment
converting VFC, VHC as a part of the treatment process into compounds that do not deplete the ozone layer
Note 1 to entry: Compounds should be considered to deplete the ozone layer are covered by EC Regulation 1005/2009
3.2.12 refrigerant
fluid used for heat transfer in a mechanical refrigerating system which absorbs heat at a low temperature and a low pressure of the fluid and rejects it at a higher temperature and higher pressure of the fluid usually involving reversible changes of the phase of the fluid
[SOURCE: ISO 817:2005]
3.2.13 refrigerating system
part that uses a refrigerant to transfer thermal energy from one part of an appliance to another part
Note 1 to entry: The refrigerating system in new appliances is hermetically sealed and typically also contains oil.
3.2.14 blowing agent
substance that is used to produce cells in the structure of an insulating foam
Trang 103.2.15
volatile fluorocarbon (VFC)
organic chemical compound consisting of carbon and fluorine atoms (in some cases also with chlorine and/or hydrogen), which is able to change phase when used as a refrigerant or produce cells in plastic structure of an insulating foam when used as a blowing agent
Note 1 to entry: Common commercial designations for these materials are R12, R11 for CFCs, R22, R141b for HCFCs and R134a for HFCs
Note 2 to entry: Chemically, volatile fluorocarbons could be either alkyl halides or alkene halides
Note 3 to entry: CFC, HCFC, HFC and HC are all VOCs – Volatile Organic Compounds
3.2.16
volatile hydrocarbon (VHC)
organic chemical compound consisting entirely of hydrogen and carbon which is able to change phase when used as a refrigerant or produce cells in plastic structure of an insulating foam when used as a blowing agent
Note 1 to entry: Common designations for volatile hydrocarbons are R290 for propane, R600a for isobutane, R1270 for propene and RC601 for cyclopentane Mixtures of VHC are also possible
quantity of blowing agent or refrigerant that is required to be recovered during treatment
Note 1 to entry: Target values could be set by e.g an industry expert group or law
Note 1 to entry: Category 3 appliances can have one or two compressors
Trang 113.2.15
volatile fluorocarbon (VFC)
organic chemical compound consisting of carbon and fluorine atoms (in some cases also with
chlorine and/or hydrogen), which is able to change phase when used as a refrigerant or
produce cells in plastic structure of an insulating foam when used as a blowing agent
Note 1 to entry: Common commercial designations for these materials are R12, R11 for CFCs, R22, R141b for
HCFCs and R134a for HFCs
Note 2 to entry: Chemically, volatile fluorocarbons could be either alkyl halides or alkene halides
Note 3 to entry: CFC, HCFC, HFC and HC are all VOCs – Volatile Organic Compounds
3.2.16
volatile hydrocarbon (VHC)
organic chemical compound consisting entirely of hydrogen and carbon which is able to
change phase when used as a refrigerant or produce cells in plastic structure of an insulating
foam when used as a blowing agent
Note 1 to entry: Common designations for volatile hydrocarbons are R290 for propane, R600a for isobutane,
R1270 for propene and RC601 for cyclopentane Mixtures of VHC are also possible
quantity of blowing agent or refrigerant that is required to be recovered during treatment
Note 1 to entry: Target values could be set by e.g an industry expert group or law
refrigerators or combined refrigerator/freezers having a total storage capacity ranging from
0,18 m3 to 0,35 m3, as specified by the appliance manufacturer
Note 1 to entry: Category 2 appliances can have one or two compressors
3.2.21
category 3 appliances
freezers having a storage capacity of less than, or equal to, 0,50 m3 and refrigerator or
combined refrigerator/freezer having a total storage capacity greater than 0,35 m3 and less
than or equal to 0,50 m3 as specified by the appliance manufacturer
Note 1 to entry: Category 3 appliances can have one or two compressors
refrigerators or freezers or combined refrigerator/freezers that are not household appliances
Note 1 to entry: Appliances like heat pump tumble dryers, de-humidifiers and portable air conditioners are not explicitly categorised but are taken into account in monitoring
3.2.24 Disposal
operation which is not recovery even where the operation has as a secondary consequence the reclamation of substances or energy
Note 1 to entry: Text taken from Directive 2008/98/EC
3.2.25 recovery
Note 1 to entry: Directive 2008/98/EC (the Waste Framework Directive) defines this term as:
“any operation the principal result of which is waste serving a useful purpose by replacing other materials which would otherwise have been used to fulfil a particular function, or waste being prepared to fulfil that function, in the plant or in the wider economy Annex II [from Directive 2008/98/EC] sets out a non-exhaustive list of recovery operations."
4 Requirements prior to treatment
• prevent, as far as reasonably practicable, the emission of VFCs;
• reduce the risk of explosion due to the release of VHCs by ensuring that levels and measures are consistent with health and safety legislation
NOTE 1 These measures are required to ensure that VFCs and VHCs are not released due mishandling, since leakage of VFC could damage to the environment and leakage of VHC in confined places could result in an explosion
NOTE 2 Employers should ensure that they are familiar with the general requirements for health and safety as laid down in Directive 89/391 EEC and also the particular requirements set out in Directive 1999/92/EC for the safety and health protection of workers potentially at risk from explosive atmospheres and Directive 94/9/EC on equipment and protective systems intended for use in potentially explosive atmospheres (ATEX)
If leakage of oil is detected, appropriate measures shall be taken to minimise environmental impacts
4.2 Site requirements
All sites shall be secured against unauthorised access or egress
The operator shall possess infrastructure in terms of size, technologies installed, and characteristics of the operations that are suitable for the activities performed on site Suitability of site shall be assessed by an operational risk management process for all tasks performed on site and include the identification of hazards, the assessment of risk and, where appropriate, the elimination or reduction of the risk, and documentation of the process
NOTE Technical requirements for sites for storage and treatment are described in Annex III of Directive 2002/96/EC
4.3 Transportation
It is permitted to transport WEEE within the scope of this standard with other WEEE providing the WEEE covered by this standard is not damaged as a consequence of this optimisation
Trang 12The WEEE within the scope of this standard shall not be crushed, compacted, or handled in a way that could damage any part of the refrigerant system or the insulating foam In particular during transportation, internal transit or when loading and unloading appliances, care shall be taken to ensure that appliances’ refrigerating systems and cabinets are not damaged
4.4 Sorting
WEEE within the scope of this standard shall be separated from other WEEE at logistic facilities and delivered to treatment facilities primarily specialized in the treatment of WEEE containing VFCs or VHCs This sorting shall only be performed by trained or adequately supervised personnel
To ensure that heat pump tumble dryers are treated correctly, as a precondition it is necessary that they are first identified and correctly sorted (see Annex D).The treatment of these appliances containing VFC shall be carried out only at facilities that perform step 1 treatment
NOTE Treating WEEE without first separating appliances within the scope of this standard from other WEEE could result in emission of substances that are either harmful to the environment or present a risk of fire or explosion
Separating VHC-containing appliances from VFC-containing appliances for separate treatment is only permitted if analytical evidence exists that identifies the blowing agents for each appliance
4.5 Compliance criteria
Parties responsible for any action covered by 4.1 through 4.4 shall have procedures in place
to ensure and document compliance with the requirements set there
These procedures (e.g trainings, operational measures) and their regular approval shall be documented (for instance as part of that organisation’s quality, environmental, or health and safety management system) and periodically audited The results of such audits shall be made available to the party having responsibility for the quality of WEEE delivered for treatment on request (normally the responsible take-back party)
5 Requirements for treatment facilities
5.1 General
The operator of the treatment facility shall ensure that all removed VFCs and VHCs are captured and subsequently disposed of, or recovered, in accordance with requirements set by the responsible take back parties Removed VFCs, VHCs and mixtures thereof shall either be transported to an authorised facility for recovery or disposal, or recovered or destroyed by on-site conversion
NOTE 1 Requirements for transportation are given by national measures implementing the “Accord européen relatif
au transport international des marchandises dangereuses par route” (ADR)
NOTE 2 Recovery and destruction of used controlled ozone depleting substances is covered by EC Regulation No 1005/2009
Separated VFCs shall be converted by a suitable process so that they no longer have the potential for causing depletion of the ozone layer Where the VFCs are sent for conversion to
a facility remote from the treatment facility, records of bills or delivery sheets shall be documented and maintained
NOTE 3 All treatment facilities that treat WEEE in accordance with this standard will need to comply with explosion protection measures Refer to Directive 1999/92/EC on minimum requirements for improving the safety and health protection of workers potentially at risk from explosive atmospheres and Directive 94/9/EC on the approximation of the laws of the Member States concerning equipment and protective systems intended for use in potentially explosive atmospheres (ATEX)
Trang 13The WEEE within the scope of this standard shall not be crushed, compacted, or handled in a
way that could damage any part of the refrigerant system or the insulating foam In particular
during transportation, internal transit or when loading and unloading appliances, care shall be
taken to ensure that appliances’ refrigerating systems and cabinets are not damaged
4.4 Sorting
WEEE within the scope of this standard shall be separated from other WEEE at logistic
facilities and delivered to treatment facilities primarily specialized in the treatment of WEEE
containing VFCs or VHCs This sorting shall only be performed by trained or adequately
supervised personnel
To ensure that heat pump tumble dryers are treated correctly, as a precondition it is
necessary that they are first identified and correctly sorted (see Annex D).The treatment of
these appliances containing VFC shall be carried out only at facilities that perform step 1
treatment
NOTE Treating WEEE without first separating appliances within the scope of this standard from other WEEE could
result in emission of substances that are either harmful to the environment or present a risk of fire or explosion
Separating VHC-containing appliances from VFC-containing appliances for separate
treatment is only permitted if analytical evidence exists that identifies the blowing agents for
each appliance
4.5 Compliance criteria
Parties responsible for any action covered by 4.1 through 4.4 shall have procedures in place
to ensure and document compliance with the requirements set there
These procedures (e.g trainings, operational measures) and their regular approval shall be
documented (for instance as part of that organisation’s quality, environmental, or health and
safety management system) and periodically audited The results of such audits shall be
made available to the party having responsibility for the quality of WEEE delivered for
treatment on request (normally the responsible take-back party)
5 Requirements for treatment facilities
5.1 General
The operator of the treatment facility shall ensure that all removed VFCs and VHCs are
captured and subsequently disposed of, or recovered, in accordance with requirements set by
the responsible take back parties Removed VFCs, VHCs and mixtures thereof shall either be
transported to an authorised facility for recovery or disposal, or recovered or destroyed by
on-site conversion
NOTE 1 Requirements for transportation are given by national measures implementing the “Accord européen relatif
au transport international des marchandises dangereuses par route” (ADR)
NOTE 2 Recovery and destruction of used controlled ozone depleting substances is covered by EC Regulation No
1005/2009
Separated VFCs shall be converted by a suitable process so that they no longer have the
potential for causing depletion of the ozone layer Where the VFCs are sent for conversion to
a facility remote from the treatment facility, records of bills or delivery sheets shall be
documented and maintained
NOTE 3 All treatment facilities that treat WEEE in accordance with this standard will need to comply with explosion
protection measures Refer to Directive 1999/92/EC on minimum requirements for improving the safety and health
protection of workers potentially at risk from explosive atmospheres and Directive 94/9/EC on the approximation of
the laws of the Member States concerning equipment and protective systems intended for use in potentially
explosive atmospheres (ATEX)
NOTE 4 Attention is drawn to the fact that national emission limits on VFCs and VHCs may apply
NOTE 5 In practice, explosions inside shredders can be avoided by controlling ambient conditions Examples of measures to control those conditions include a) dilution of the VHC fraction in the local atmosphere by blowing air into the process or, b) reduction of the oxygen content by substituting air with inert gases and c) using alternative explosion proof processing-technologies
All separated VFCs and VHCs or admixtures thereof shall be carefully stored, handled and transported to avoid any emissions before their recovery or destruction
5.2 Step 1 treatment
This section applies to all WEEE within the scope of this standard
1) All refrigerants and all oil shall be removed from the refrigerating system;
2) All refrigerants shall be separated from oil;
3) All oil shall be contained within a closed system until the concentration of refrigerant is below 0,2 % w/w VFC;
NOTE The VFC content should be measured and expressed as concentration of R12 in the oil
4) No residual VFC within the oil shall be allowed to be released to the atmosphere;
5) The total mass of refrigerants removed from the refrigerating system (sum of VHCs and VFCs) shall be monitored and documented continuously
5.3 Step 2 treatment
This section applies to WEEE containing insulating foam with either VFCs or VHCs
1) The treatment of appliances in step 2 is normally carried out with step 1 treated appliances (called “cabinets”);
2) Insulating foam shall not be manually removed;
NOTE 1 Future insulation material technologies may necessitate a manual dismantling of insulating foam.
3) The crushing of cabinets and the separation of crushed fractions shall be performed in a way so that emissions of VFCs and VHCs to the atmosphere are minimised according to national legislation;
4) The residual content of VFCs contained in the separated metal and plastics fractions shall be minimised;
5) The residual VFCs within the crushed insulating foam shall not be released to the atmosphere They shall be converted into compounds that do not deplete the ozone layer;
NOTE 2 The conversion into non-ozone depleting substances is necessary according to EC Regulation No 1005/2009.
6) The total mass of blowing agent (sum of VHCs and VFCs) removed from the insulating foam shall be monitored and documented continuously
5.4 Step 3 treatment
Where the VFCs are being converted on site into compounds that do not deplete the ozone layer, continuous recorded input data for raw gas and output data for clean gas shall be
Trang 14monitored and documented continuously (see 5.5 (7) and 8)) and 5.6) The documentation shall include mass flow and concentration of VFCs to demonstrate that the conversion is effective
NOTE A comprehensive assessment of technologies available for the destruction of ozone depleting substances in line with the Montreal Protocol has been produced by the Technology and Economic Assessment Panel (TEAP), who operate under the auspices of the United Nations Environment Programme (UNEP)
5.5 Monitoring
The following information shall be captured by the treatment facility daily Annex C provides a flow chart giving an overview of monitoring requirements at treatment facilities
1) Input into the receiving area
− Total mass of incoming appliances per delivery (i.e container mass from truck scale);
− Total mass of appliances and other waste per delivery not being treated in step 1
NOTE 1 With that data the total input mass into step 1 can be calculated
2) Input to step 1 treatment (as described in 5.2)
− Number of refrigerators, freezers (and number of compressors) and household appliances differentiated in accordance with the existing refrigerant in the refrigerating system (VFCs, VHCs and NH3);
non-− Number of heat pump tumble dryers, de-humidifiers and portable air conditioners;
− Number of appliances where the refrigerating system is defective such that a loss
of refrigerant is expected
NOTE 2 The distinction between defective and intact refrigerating systems can be based on: visual inspection (no compressor/damaged refrigerating systems), manometer control (amplitude yes/no), and bubble formation in inspection glass
3) Output of step 1 treatment
− Total mass of all fractions recovered from step 1 treatment;
− Total mass of all refrigerants (both VFCs and VHCs) and oil from the step 1 treatment
Each change of collection vessel shall be documented and be accompanied by the number of discarded appliances that have been treated since the last change of collection vessel Where oil and/or refrigerant are immediately destroyed by converting points 7) and 8) shall be considered;
4) Number and total mass of appliances/cabinets not treated in the step 2 treatment of the system
− Glass wool/expanded polystyrene appliances,
− Heat pump tumble dryers, de-humidifiers and portable air conditioners
5) Input to step 2 treatment as described in 5.3:
− Number and total mass of cabinets per category (as defined in 3.2) differentiated
in accordance with the blowing agent in the insulating foam (VFCs and VHCs);
Trang 15monitored and documented continuously (see 5.5 (7) and 8)) and 5.6) The documentation
shall include mass flow and concentration of VFCs to demonstrate that the conversion is
effective
NOTE A comprehensive assessment of technologies available for the destruction of ozone depleting substances in
line with the Montreal Protocol has been produced by the Technology and Economic Assessment Panel (TEAP),
who operate under the auspices of the United Nations Environment Programme (UNEP)
5.5 Monitoring
The following information shall be captured by the treatment facility daily Annex C provides a
flow chart giving an overview of monitoring requirements at treatment facilities
1) Input into the receiving area
− Total mass of incoming appliances per delivery (i.e container mass from truck scale);
− Total mass of appliances and other waste per delivery not being treated in step 1
NOTE 1 With that data the total input mass into step 1 can be calculated
2) Input to step 1 treatment (as described in 5.2)
− Number of refrigerators, freezers (and number of compressors) and household appliances differentiated in accordance with the existing refrigerant in
non-the refrigerating system (VFCs, VHCs and NH3);
− Number of heat pump tumble dryers, de-humidifiers and portable air conditioners;
− Number of appliances where the refrigerating system is defective such that a loss
of refrigerant is expected
NOTE 2 The distinction between defective and intact refrigerating systems can be based on: visual inspection
(no compressor/damaged refrigerating systems), manometer control (amplitude yes/no), and bubble formation in
inspection glass
3) Output of step 1 treatment
− Total mass of all fractions recovered from step 1 treatment;
− Total mass of all refrigerants (both VFCs and VHCs) and oil from the step 1 treatment
Each change of collection vessel shall be documented and be accompanied by the number of
discarded appliances that have been treated since the last change of collection vessel Where
oil and/or refrigerant are immediately destroyed by converting points 7) and 8) shall be
considered;
4) Number and total mass of appliances/cabinets not treated in the step 2 treatment of the
system
− Glass wool/expanded polystyrene appliances,
− Heat pump tumble dryers, de-humidifiers and portable air conditioners
5) Input to step 2 treatment as described in 5.3:
− Number and total mass of cabinets per category (as defined in 3.2) differentiated
in accordance with the blowing agent in the insulating foam (VFCs and VHCs);
− Number of cabinets with and without doors and single doors shall be reported
NOTE 3 In case there is a direct flow from step 1 to step 2, the determination of categories and insulating foam may be done at step 1
6) Output of step 2 treatment
− Mass of all fractions recovered from the step 2 treatment;
− Mass of blowing agents (VFCs and VHCs from step 2 treatment), except where blowing agents are immediately destroyed in a converting system (step 3) For those cases point 7) and 8) shall be considered
Each change of collection vessel shall be monitored and documented and be accompanied by the number of discarded appliances that have been treated since the last change of collection vessel
7) Input to step 3 treatment
− for installations with converting system (step 3) continuous recorded input data for raw gas mass flow (concentration and volume stream at standard temperature and pressure) of VFCs (output step 1 and 2 separately)
ϴͿ
Output of step 3 treatmentFor installations with converting system (step 3) continuous recorded output data for exhaust gas mass flow (concentration and volume stream at standard temperature and pressure) of VFCs
1) Sample analyses related to recovery or disposal of VFC/VHC:
− Chemical composition of the output refrigerants (VFCs/VHCs) from the step 1 treatment (one analysis per collection vessel delivered for destruction) Not applicable for systems with converting system (step 3)
− Chemical composition of the output blowing agents (VFCs/VHCs) from the step 2 treatment (one analysis per collection vessel delivered for destruction) A regular volumetric separation of phases (water, blowing agent) is necessary for proper calculation of recovered VFCs/VHCs Not applicable for systems with converting system (step 3)
− Remaining blowing agent concentration VFCs/VHCs in the PU-fraction (residual blowing agent)
− Remaining refrigerant concentration (VFCs/VHCs) in the oil
Trang 16− Remaining quantities of PU in the metal and plastics fractions
Acknowledged standard procedures for all analyses shall be followed
2) Information related to final treatment of fractions:
− Place of delivery, total mass, and technology applied for each non metal fraction
NOTE Plausibility of reported data can be ensured by visual inspection of accounting documents Evidence can be provided by controlling invoices, delivery sheet, etc.
−
For installations with converting system (step 3) conversion efficiency shall be regularly proved Measurement equipment used within the process shall be regularly checked.5.7 Compliance criteria
Compliance with the requirements described in this document shall be audited annually, in line with best practice of implementing quality management systems Results of these audits shall be documented and be made available to contract partners
NOTE 1 Due to the different structures of implementing the requirements of the WEEE Directive within the EU it is not possible to define which party should carry out the above auditing, nor who should be responsible for collating audit results
To comply with this standard WEEE treatment companies shall at least fulfil the requirements described in 5.1 - 5.6 and also the following criteria:
1) The mass of VFCs separated from the refrigerating system in a performance test shall be regularly determined (see Annex A);
NOTE 2 Annex A is not used to determine the mass of VHCs recovered due to their low quantity of a lower density fluid
2) The oil shall not contain more than 0,2 % VFC (sample analysis test as required in 5.6);
NOTE 3 The VFC content should be measured and expressed as concentration of R12 in the oil
3) The mass of VFCs and VHCs separated from the insulating foam in a performance test shall be regularly determined (see Annex B);
4) The residual blowing agent concentration in the PU fraction shall not exceed 0,2 % VFC (sample analysis tests as required in 5.6);
5) Residues of the insulating foams contained in the ferrous and the non-ferrous metal fraction are to be kept below 0,3 % (sample analysis test as required in 5.6);
6) Residues of insulating foams contained in the plastics fraction are to be kept below 0,5 % (sample analysis test as required in 5.6)
6 Responsible take-back party General
Responsible take-back parties shall ensure that companies having responsibility for transportation, sorting and storage fulfil their obligations as defined in this in 4.1 - 4.5
Trang 17− Remaining quantities of PU in the metal and plastics fractions
Acknowledged standard procedures for all analyses shall be followed
2) Information related to final treatment of fractions:
− Place of delivery, total mass, and technology applied for each non metal fraction
NOTE Plausibility of reported data can be ensured by visual inspection of accounting documents Evidence can be
provided by controlling invoices, delivery sheet, etc.
−
For installations with converting system (step 3) conversion efficiency shall beregularly proved Measurement equipment used within the process shall be regularly checked.
5.7 Compliance criteria
Compliance with the requirements described in this document shall be audited annually, in
line with best practice of implementing quality management systems Results of these audits
shall be documented and be made available to contract partners
NOTE 1 Due to the different structures of implementing the requirements of the WEEE Directive within the EU it is
not possible to define which party should carry out the above auditing, nor who should be responsible for collating
audit results
To comply with this standard WEEE treatment companies shall at least fulfil the requirements
described in 5.1 - 5.6 and also the following criteria:
1) The mass of VFCs separated from the refrigerating system in a performance test shall be
regularly determined (see Annex A);
NOTE 2 Annex A is not used to determine the mass of VHCs recovered due to their low quantity of a lower density
fluid
2) The oil shall not contain more than 0,2 % VFC (sample analysis test as required in 5.6);
NOTE 3 The VFC content should be measured and expressed as concentration of R12 in the oil
3) The mass of VFCs and VHCs separated from the insulating foam in a performance test
shall be regularly determined (see Annex B);
4) The residual blowing agent concentration in the PU fraction shall not exceed 0,2 % VFC
(sample analysis tests as required in 5.6);
5) Residues of the insulating foams contained in the ferrous and the non-ferrous metal
fraction are to be kept below 0,3 % (sample analysis test as required in 5.6);
6) Residues of insulating foams contained in the plastics fraction are to be kept below 0,5 %
(sample analysis test as required in 5.6)
6 Responsible take-back party General
Responsible take-back parties shall ensure that companies having responsibility for
transportation, sorting and storage fulfil their obligations as defined in this in 4.1 - 4.5
Responsible take-back parties shall ensure that treatment operators fulfil all requirements as described in 5.7
Responsible take-back parties shall define target values for the recovery of VFCs and VHCs for step 2 treatment (
tv
VFC ,tv
VHC) to be met by treatment partners in performance tests according to Annex B Furthermore they shall define the blowing agent concentration (fVFC ,fVHC) and PU mass of single categories (
w
1,w
2,w
3)
for the specific input of appliances into the performance testResponsible take-back parties shall define treatment requirements for daily business based
on the results of performance tests according to Annex A and B
NOTE 1 The defined treatment requirements should be regularly reviewed If a long term analysis of monitored and reported indicators (5.5 - 5.6) shows that the recoverable amounts of refrigerant has considerably changed, the defined target values should be reassessed and adapted accordingly
Responsible take-back parties shall define how often performance tests according to Annex A and B should be done at treatment facilities
NOTE 2 A common way of achieving the above is to include such provisions within their contracts with treatment companies
NOTE 3 Within many countries in Europe, storage and sorting and the associated quality control measures are not typically directly carried out or controlled by responsible take-back parties
Trang 18Annex A
(normative)
Methodology for running performance tests for step 1 treatment
A.1 Introduction
This annex defines the required performance criteria to achieve step 1 treatment
Where covered by the scope of this standard, the method shall be used to evaluate the performance of evacuating refrigerants from appliances During the test the refrigerant and oil contained in the refrigerating system are extracted by reduced pressure The mass of each individual appliance is documented before and after treatment (to check plausibility) The mass of collection vessels for oil and VFCs are also documented before and at the end of the test: these values are then compared Components or other parts that would be normally removed during step 1 shall not removed before each appliance is weighed
A.2 Operating conditions, test preparation, and test procedures of the
performance test
The following procedure shall be followed in order to determine the performance of step 1 systems:
Analyse the plant’s monitoring documents (see 5.5) covering step 1 processing over the three months prior to testing in order to determine the average plant throughput in appliances per hour
Select a sample to be used in the test with sufficient intact refrigerators and/or freezers containing either R12 or R134a as refrigerant Based on visual inspection, the appliances in the sample shall be undamaged and shall each contain only one compressor and a readable rating plate stating the mass of refrigerant originally contained in the appliance
If, during the test, an appliance is identified as having a defective refrigerating system, the appliance shall be substituted by an intact appliance
The mass of the vessel used to collect the refrigerant and the oil shall be measured to an accuracy of at least ± 0,1kg (± 100 g) The capacity of the vessel shall be sufficient for the whole amount of VFCs recovered during the performance test
The throughput rate used during step 1 testing shall differ by no more than 10 % from the average plant throughput rate For each appliance being treated all the refrigerant and oil contained in each appliances’ refrigerating system shall be transferred to the collecting vessel mentioned in A.2.3 Each appliance is weighed with an accuracy of ± 0,01kg (± 10 g) before and after extraction of the refrigerant and the oil All visible losses of VFCs, oil, water or other materials that could influence the mass balance which is observed or identified during the performance test shall be recorded and taken into account in the evaluation
NOTE 1 System pressure conditions in refrigerating system can be recorded (pressure, no pressure) if desired
Trang 19Annex A
(normative)
Methodology for running performance tests for step 1 treatment
A.1 Introduction
This annex defines the required performance criteria to achieve step 1 treatment
Where covered by the scope of this standard, the method shall be used to evaluate the
performance of evacuating refrigerants from appliances During the test the refrigerant and oil
contained in the refrigerating system are extracted by reduced pressure The mass of each
individual appliance is documented before and after treatment (to check plausibility) The
mass of collection vessels for oil and VFCs are also documented before and at the end of the
test: these values are then compared Components or other parts that would be normally
removed during step 1 shall not removed before each appliance is weighed
A.2 Operating conditions, test preparation, and test procedures of the
performance test
The following procedure shall be followed in order to determine the performance of step 1
systems:
Analyse the plant’s monitoring documents (see 5.5) covering step 1 processing over the three
months prior to testing in order to determine the average plant throughput in appliances per
hour
Select a sample to be used in the test with sufficient intact refrigerators and/or freezers
containing either R12 or R134a as refrigerant Based on visual inspection, the appliances in
the sample shall be undamaged and shall each contain only one compressor and a readable
rating plate stating the mass of refrigerant originally contained in the appliance
If, during the test, an appliance is identified as having a defective refrigerating system, the
appliance shall be substituted by an intact appliance
The mass of the vessel used to collect the refrigerant and the oil shall be measured to an
accuracy of at least ± 0,1kg (± 100 g) The capacity of the vessel shall be sufficient for the
whole amount of VFCs recovered during the performance test
The throughput rate used during step 1 testing shall differ by no more than 10 % from the
average plant throughput rate For each appliance being treated all the refrigerant and oil
contained in each appliances’ refrigerating system shall be transferred to the collecting vessel
mentioned in A.2.3 Each appliance is weighed with an accuracy of ± 0,01kg (± 10 g) before
and after extraction of the refrigerant and the oil All visible losses of VFCs, oil, water or other
materials that could influence the mass balance which is observed or identified during the
performance test shall be recorded and taken into account in the evaluation
NOTE 1 System pressure conditions in refrigerating system can be recorded (pressure, no pressure) if
desired
NOTE 2 For extraction systems that use a drilling head it is recommended to first place the appliance on the scale before extraction of the refrigerant
The performance test is finished as soon as 100 appliances, all proven to be intact, have been treated If all of the refrigerating systems have been completely emptied, the mass of the collecting vessel described in A.2.3 is measured with an accuracy of at least ± 0,1 kg (±100 g)
The condition of all considered refrigerating systems shall be documented in order to determine the fraction of defective units during the test
NOTE This ensures that 100 intact appliances undergoing treated is fulfilled
To evaluate step 1 performance, the following quantities shall be measured (see detailed parameters and formulae in A.2):
• Total mass of VFC recovered (outR) in kg (The mass of compressed air in the vessel shall
be taken into account)
• Total mass of oil recovered (outL) in kg
• Total mass of refrigerant as indicated on the rating plate (RI) in kg
• Total mass reduction (S) of all appliances after vacuum extraction has been completed in
kg
• Number of defective appliances (T)
The following quantities shall be determined while taking into account the number of defective appliances or other observations:
a) Mass balance: the ratio between (outR + outL) to (S) is a measure of the total system
performance with respect to the quantity of the overall recovered oil and refrigerant
(identified by qMtot)
b) VFC recovery performance: the ratio between (outR) to (RI) is a measure of the system
performance with respect to the recovery of VFC (identified by qR)
NOTE 1 The ratio between (outR) to (S – outL) is a measure of the system performance with respect to the
recovery of VFCs In case of a good mass balance this value can confirm the calculated VFC recovery performance
(identified by qMR )
c) Defective refrigeration systems: the ratio of the quantity of VFC in a refrigeration system (mass of VFC as specified on the rating plate) to the actual reduction in the mass of that appliance during extraction of VFC is used to identify potentially defective refrigeration
system The corresponding parameter (t) in % is calculated as ratio of the single mass of VFC originally present in the refrigeration system (as stated on the rating plate) (Rk)) to
the actual reduction in mass due to the extraction of a mixture of VFC and oil (Sk)
NOTE 2 Figure t is fixed for a certain ratio of the potentially recoverable quantity of VFC to the effective
reduction in mass (identified by tmax) Refrigeration systems with a figure t higher than tmax are declared to be
defective, provided the refrigeration systems are empty at the end of the evacuation process tmax is specified according to the formula in A.2.2 or defined by the responsible take-back party
NOTE 3 It is recommended that for the evaluation of evacuation performance in correspondence with the number of compressors a minimum of two evacuated compressors should be opened horizontally That can be done best at a height of approximately 2/3 with a flexible-blade saw so that the motor can be removed The remaining quantity of oil should be recorded and the compressor photographed
d) Quantity of VFC per refrigeration system: the ratio between (outR) and the number of intact refrigeration systems (I) is the quantity of VFC recovered per single refrigeration system (identified by VR)
Trang 20e) Quantity of oil per refrigeration systems: the ratio between (outL) and the number of refrigeration systems containing oil (N) provides the quantity of oil recovered per refrigeration system (identified by VL)
f) Residual VFC content in the oil: a sample of degassed oil is sent to an external laboratory
in a gastight container in order to have the residual content of VFC as concentration of R12 (or alternatively the total halogen content if required) determined
The performance test is passed:
• if the VFC recovery performance is not lower than 0,9, and
• the oil from the refrigeration system does not contain more than 0,2 % VFC
A.3 Calculations for performance test step 1
A.3.1 General
The performance test shall only be carried out on refrigerating systems containing volatile halogenated hydrocarbons R12 or R134a, it is not carried out on appliances containing volatile fluorocarbons Specific indices in parameters and formulae are avoided
Input step 1
• Total number of refrigerating systems (k) evacuated
(exclusively from categories 1-3, no size differentiation,
containing either R12 or R134a)
• Single mass of VFC sucked off (acc to rating plate) g R k
• Total mass of recovered VFC (in tank, less VFC in
• Ratio of VFC (acc to rating plate) to mass of mixture of
• Maximal ratio of VFC (acc to rating plate) to mass of
mixture of VFC and oil sucked off above which
refrigerating systems are to be regarded as defective
t max
• Total number of refrigerating systems, irrespective of their
• Total number of intact refrigerating systems (exclusively
from categories 1-3, no size differentiation, containing
either R12 or R134a)
I
• Ratio of defective refrigerating systems to total number of o T
Trang 21e) Quantity of oil per refrigeration systems: the ratio between (outL) and the number of
refrigeration systems containing oil (N) provides the quantity of oil recovered per
refrigeration system (identified by VL)
f) Residual VFC content in the oil: a sample of degassed oil is sent to an external laboratory
in a gastight container in order to have the residual content of VFC as concentration of
R12 (or alternatively the total halogen content if required) determined
The performance test is passed:
• if the VFC recovery performance is not lower than 0,9, and
• the oil from the refrigeration system does not contain more than 0,2 % VFC
A.3 Calculations for performance test step 1
A.3.1 General
The performance test shall only be carried out on refrigerating systems containing volatile
halogenated hydrocarbons R12 or R134a, it is not carried out on appliances containing
volatile fluorocarbons Specific indices in parameters and formulae are avoided
Input step 1
• Total number of refrigerating systems (k) evacuated
(exclusively from categories 1-3, no size differentiation,
containing either R12 or R134a)
• Single mass of VFC sucked off (acc to rating plate) g R k
• Total mass of recovered VFC (in tank, less VFC in
• Ratio of VFC (acc to rating plate) to mass of mixture of
• Maximal ratio of VFC (acc to rating plate) to mass of
mixture of VFC and oil sucked off above which
refrigerating systems are to be regarded as defective
t max
• Total number of refrigerating systems, irrespective of their
• Total number of intact refrigerating systems (exclusively
from categories 1-3, no size differentiation, containing
either R12 or R134a)
I
• Ratio of defective refrigerating systems to total number of o T
refrigerating systems considered for the test, irrespective
• Total mass of VFC sucked off (acc to rating plate) kg R
• Total mass of VFC of intact appliances (potentially
• Rate of oil recovery (based on potentially recoverable
A.3.3 Formulae
• Ratio of VFC (acc to rating plate) to mass of mixture of VFC and oil
t max
{ } t
kquantile
t
max≈ 80 %
• Total number of refrigerating systems considered for the test, irrespective