IEC 63333:2023
(Main)General method for assessing the proportion of reused components in products
General method for assessing the proportion of reused components in products
IEC 63333:2023 deals with the assessment of the proportion of reused components in products on a horizontal level, which can be applied at any point in the life of the product. This document applies to electrical and electronic products. It can also be applied to other product types.
This document is intended to be used in the assessment of the proportion of reused components in products. It can also be used by technical committees when developing assessment methods dedicated to their product or product-group publications. Aspects like performance, validation, verification and suitability of reused components are not in the scope of this document. It is the responsibility of the user of this document to address these aspects. This document has the status of a horizontal publication in accordance with IEC Guide 108.
General Information
Standards Content (Sample)
IEC 63333
®
Edition 1.0 2023-08
INTERNATIONAL
STANDARD
HORIZONTAL PUBLICATION
General method for assessing the proportion of reused components in products
IEC 63333:2023-08(en)
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IEC 63333
®
Edition 1.0 2023-08
INTERNATIONAL
STANDARD
General method for assessing the proportion of reused components in products
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.020.01 ISBN 978-2-8322-7335-7
Warning! Make sure that you obtained this publication from an authorized distributor.
® Registered trademark of the International Electrotechnical Commission
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– 2 – IEC 63333:2023 © IEC 2023
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Assessment method for the proportion of reused components in a product . 8
4.1 General considerations . 8
4.2 Calculation of the proportion of reused components . 8
4.2.1 General . 8
4.2.2 Proportion of reused components by mass on product level . 9
4.2.3 Proportion of reused components by number on product level . 9
4.2.4 Proportion of reused components by mass balance . 10
4.2.5 Proportion of reused components by number balance . 10
5 Documenting the assessment of the proportion of reused components . 11
5.1 General . 11
5.2 Elements of the assessment . 11
5.2.1 General . 11
5.2.2 Scope of the assessment . 11
5.2.3 Input data and approach for the assessment of the proportion of the
reused components . 11
5.2.4 Output of the assessment . 12
Annex A (normative) Target audience and sensitivity levels . 13
A.1 Target audience and sensitivity levels . 13
A.2 Data sensitivity . 13
A.2.1 General . 13
A.2.2 Level 1 – Public . 14
A.2.3 Level 2 – Restricted . 14
A.2.4 Level 3 – Confidential . 14
Annex B (informative) Examples of calculations applying the formulas in this document . 15
B.1 Proportion of reused components by mass on product level . 15
B.2 Proportion of reused components by number on product level. 15
B.3 Proportion of reused components by mass balance for a single and multiple
product types . 16
B.3.1 Single product type example . 16
B.3.2 Multiple product types example . 17
B.4 Proportion of reused components by number balance for a single and
multiple product types . 17
B.4.1 Single product type example . 17
B.4.2 Multiple product types example . 18
Bibliography . 19
Figure 1 – Concept diagram of a reused component . 8
Table B.1 – Overview of the data and results of calculation of the proportion of reused
components by mass for different product examples . 15
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IEC 63333:2023 © IEC 2023 – 3 –
Table B.2 – Components examples, data overview and results of calculation for the
proportion of reused components by number for different products . 16
Table B.3 – Overview of the data and results of calculation for the proportion of reused
components by mass balance for a single product type . 16
Table B.4 – Overview of the data and calculation of the proportion of reused
components by mass balance in the defined period for multiple product types) . 17
Table B.5 – Overview of the data and calculation of the proportion of reused
components by number balance in the defined period for a single product type . 18
Table B.6 – Overview of the data and calculation of the proportion of reused
components by number balance in the defined period for multiple product types . 18
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
GENERAL METHOD FOR ASSESSING THE PROPORTION
OF REUSED COMPONENTS IN PRODUCTS
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
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Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
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the latest information, which may be obtained from the patent database available at https://patents.iec.ch or
www.iso.org/patents. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 63333 has been prepared by IEC technical committee 111: Environmental standardization
for electrical and electronic products and systems. It is an International Standard.
It is based on EN 45556:2019, which was prepared by the CEN and CENELEC Joint Technical
Committee 10 "Energy-related products – Material efficiency Aspects for Ecodesign"
(CEN-CLC/JTC 10). The document has been adopted [with modifications].
The text of this International Standard is based on the following documents:
Draft Report on voting
111/705/FDIS 111/718/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
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IEC 63333:2023 © IEC 2023 – 5 –
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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– 6 – IEC 63333:2023 © IEC 2023
INTRODUCTION
This document provides general methods for assessing the proportion of reused components
in products and is intended to be used by manufacturers that want to assess the proportion of
reused components in their products. It can be also used by technical committees when
developing assessment methods dedicated to their product or product-group publications.
Four calculation methods based on the mass of reused components and the number of reused
components are presented. Other methods can exist and be more suitable for certain products
or product-groups. While writing product publications on assessing the proportion of reused
components, product technical committees can apply the most suitable method for their product
(or groups of products).
1
This document is based on the European standard EN 45556:2019 [1] , which is part of a family
of publications developed by the European CEN and CENELEC Joint Technical Committee 10.
It comprises the standardization deliverables in the numerical range of 45550 to 45559,
covering topics related to the following material efficiency aspects:
– extending product lifetime;
– ability to reuse components or recycle materials from products at end-of-life;
– use of reused components or recycled materials in products or both.
___________
1
Numbers in square brackets refer to the Bibliography.
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IEC 63333:2023 © IEC 2023 – 7 –
GENERAL METHOD FOR ASSESSING THE PROPORTION
OF REUSED COMPONENTS IN PRODUCTS
1 Scope
This document deals with the assessment of the proportion of reused components in products
on a horizontal level, which can be applied at any point in the life of the product.
This document applies to electrical and electronic products. It can also be applied to other
product types.
This document is intended to be used in the assessment of the proportion of reused components
in products. It can also be used by technical committees when developing assessment methods
dedicated to their product or product-group publications.
Aspects like performance, validation, verification and suitability of reused components are not
in the scope of this document. It is the responsibility of the user of this document to address
these aspects.
This document has the status of a horizontal publication in accordance with IEC Guide 108 [2].
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
component
constituent of a product which cannot be fragmented without losing its particular function
EXAMPLE Resistor, capacitor, diode, antenna, screw, mounting bracket.
[SOURCE: IEC 60050-151:2001, 151-11-21 [3], modified – In the definition "part of a device"
has been replaced by "of a product", "physically divided into smaller parts" has been replaced
by "fragmented" and the examples have been added.]
3.2
reused component
component removed from a product and used again in another product
Note 1 to entry: A component is reused with or without alteration (e.g. functional or aesthetics alteration).
Note 2 to entry: A component is reused for the same or a different purpose.
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Note 3 to entry: A concept diagram of a reused component is shown in Figure 1.
Figure 1 – Concept diagram of a reused component
4 Assessment method for the proportion of reused components in a product
4.1 General considerations
As there are no methods available for directly measuring the proportion of reused components
in a product it can be only determined indirectly. Therefore, the verification is by means of
documented evidence from the manufacturer, supplier or authorized distributor or any
combination of the three. Aspects of traceability, including identification of the reused
component or groups of reused components, shall be included in the documentation (see more
details in Clause 5 and Annex A).
There is no obligation to collect information for all components, but only components verified
as having been previously used can be accounted for as reused components.
NOTE The performance characteristics of reused components can change over time and can be relevant for some
product groups. For this document, the performance characteristics of components are not taken into account.
4.2 Calculation of the proportion of reused components
4.2.1 General
The user of this document shall apply at least one of the formulas presented in 4.2.2 to 4.2.5
to calculate the proportion of reused components in products:
– based on product level, by assessing each product individually (as given in 4.2.2 and 4.2.3)
or,
– based on mass balance or number balance over a period of time (4.2.4 and 4.2.5).
The period accounted shall be specified, not exceed one year and shall be representative of
the production volume.
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IEC 63333:2023 © IEC 2023 – 9 –
4.2.2 Proportion of reused components by mass on product level
Formula (1) shall be applied to obtain the proportion of reused components by mass on a
product level (expressed in percentage):
m
re
R ×100%
(1)
pm
m
tot
where
m is the total mass of the used components or groups of components (e.g. a printed
re
circuit board assembly, PCBA) in the assessed product;
m is the total mass of the product;
...
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