SIST EN 17472:2022

SLOVENSKI STANDARD
01-julij-2022
Trajnostnost gradbenih objektov - Ocenjevanje trajnostnosti gradbenih inženirskih
objektov - Računske metode
Sustainability of construction works - Sustainability assessment of civil engineering works
- Calculation methods
Nachhaltigkeit von Bauwerken - Bewertung der Nachhaltigkeit von Ingenieurbauwerken -
Rechenverfahren
Contribution des ouvrages de construction au développement durable - Évaluation de la
contribution au développement durable des ouvrages de génie civil - Méthodes de calcul
Ta slovenski standard je istoveten z: EN 17472:2022
ICS:
13.020.20 Okoljska ekonomija. Environmental economics.
Trajnostnost Sustainability
91.040.01 Stavbe na splošno Buildings in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 17472
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2022
EUROPÄISCHE NORM
ICS 91.040.01
English Version
Sustainability of construction works - Sustainability
assessment of civil engineering works - Calculation
methods
Contribution des ouvrages de construction au Nachhaltigkeit von Bauwerken - Bewertung der
développement durable - Évaluation de la contribution Nachhaltigkeit von Ingenieurbauwerken -
au développement durable des ouvrages de génie civil - Rechenverfahren
Méthodes de calcul
This European Standard was approved by CEN on 1 November 2021.

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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17472:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Abbreviations . 23
5 The process for the assessment . 23
6 Purpose of the assessment. 24
7 Specification of the object of assessment . 25
7.1 General . 25
7.2 Functional equivalent . 25
7.3 Reference study period . 27
7.4 System boundary . 28
7.5 Civil engineering works’ model . 36
7.6 Additional functions . 37
8 Scenarios for defining the civil engineering works life cycle . 38
8.1 General . 38
8.2 Requirements for scenarios . 39
8.3 Scenarios for the pre-construction stage (Module A0) . 39
8.4 Scenarios for the product stage (Modules A1, A2 and A3) . 39
8.5 Scenarios for the construction process stage (Modules A4 and A5) . 39
8.6 Scenarios for use stage (Modules B1-B8) . 40
8.7 Scenarios for the end of life stage (Modules C1 to C4) . 42
8.8 Scenarios for benefits and loads beyond the system boundary (Module D) . 43
9 Quantification of materials and products . 43
9.1 General . 43
9.2 Specification net amount . 43
9.3 Specification gross amount. 44
10 Data for the assessment . 45
10.1 General . 45
10.2 Data quality . 46
10.3 Selection of environmental data . 46
10.4 Selection of social data . 47
10.5 Selection of economic data . 48
11 Methods for assessment of environmental, economic and social performance . 49
11.1 General . 49
11.2 Environmental performance . 51
11.3 Social performance . 60
11.4 Economic performance . 83
11.5 Management mechanisms. 90
12 Reporting and communication. 91
12.1 General . 91
12.2 Information on the assessment . 91
12.3 Statement of boundaries, scenarios used, and additional functions considered in the
assessment . 92
12.4 Data sources . 92
12.5 Communication of assessment results. 92
13 Verification of results . 94
Annex A (informative) Energy use – case studies . 95
A.1 General . 95
A.2 Study case: hydroelectric power plant. 95
A.2.1 Description of the civil engineering works . 95
A.2.2 Description of the energy production and consumption unit(s) . 95
A.2.3 Scenario and boundary limit for the assessment . 95
Annex B (informative) Noise emissions calculation . 97
Annex C (informative) Examples of climate change impacts . 98
Annex D (informative) Websites with European climate scenarios . 101
Annex E (informative) List of indicators in this document . 102
Bibliography . 116

European foreword
This document (EN 17472:2022) has been prepared by Technical Committee CEN/TC 350 “Sustainability
of construction works”, the secretariat of which is held by AFNOR.
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 August 2022, and conflicting national standards shall be
withdrawn at the latest by August 2022.
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 has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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.
Introduction
This document provides rules for the assessment of the sustainability of civil engineering works including
environmental, economic and social aspects.
Figure 1 illustrates how the assessment of the environmental, economic and social performances fits
within the concept of the sustainability assessment of a civil engineering works.

NOTE The outer box with the dashed line represents the area standardized by CEN/TC 350 – Sustainability of
construction works.
Figure 1 — Concept of sustainability assessment of civil engineering works
Those economic, social or environmental requirements not expressed in the sustainability assessment
are communicated, too.
This document supports quantification of the contribution of the assessed civil engineering works to
sustainable construction and sustainable development.
The evaluation of technical and functional performance is beyond the scope of this document. Technical
and functional characteristics are taken into account here by reference to the functional equivalent, which
also forms a basis for comparison of the results of assessments.
Although the assessment of technical and functional performance does not form part of this series of
standards, their interrelationship with environmental, social and economic performance is a prerequisite
for an assessment of sustainability of construction works and, therefore, is taken into account, as
illustrated in Figure 1.
The method of assessment of sustainability described in this document is based on a life cycle approach
and provides a consistent model for describing and recording the civil engineering works and its life cycle
for assessing the environmental, economic and social performance. For the assessment of the three
aspects, the same reference study period is used.
The assessment of social performance differs from the assessment of economic and environmental
aspects because it requires both quantitative and descriptive approaches.
The document sets requirements for:
— the description of the object of assessment;
— the system boundary that applies at the civil engineering works level;
— the procedure to be used for the analysis;
— definition of the indicators to be declared, information to be provided and the way in which they are
collated and reported;
— presentation of the results in reporting and communication; and
— the data necessary for the application of the standard and calculation.
The economic assessment is undertaken at the civil engineering works level. However, it requires
technical and cost information about individual products and components within the civil engineering
works and its services and systems, including service life data, type and frequency of maintenance,
replacement and repair, and deconstruction and disposal. This information is used as input quantities for
the calculation of cost in the life cycle of the civil engineering works.
The framework and the general requirements for sustainability assessments of civil engineering works
are specified in EN 15643. Further documents on sustainability assessment have already been developed
by CEN/TC 350 or are currently under development. Table 1 gives an overview on relevant standards
related to sustainability of construction works. Each standard has been assigned to either the framework
level, the works level, or the product level according to the specifications it contains.
Table 1 — Overview on relevant sustainability of construction works standards
Sustainability assessment
Technical
Functionality
characteristics
environmental social economic
c
ISO 15686-1
Framework EN 15643 Framework for assessment of buildings
a
Service life
level and civil engineering works
planning
b b
prEN 15978-1 EN ISO 52000-1
EN 16309 EN 16627
Environmental Energy
Social Economic
performance performance of
performance performance
Works of buildings buildings
of buildings of buildings
level
prEN 17680 Evaluation of potential for sustainable building refurbishment
EN 17472 Sustainability assessment of

civil engineering works
EN 15804
EPD core rules
CEN/TR 16970
Guidance for
EN 15804 c
ISO 15686-2
Service life
prEN 15941
prediction
data quality
procedures
EN 15942
c
ISO 15686-7
Communication
format B-to-B
Performance
evaluation for
Product
prEN 17672
feedback of
level
Horizontal rules
service life data
for B-to-C
from practice
communication
c
ISO 15686-8
prEN ISO 22057
Reference
Data templates
service life and
for the use of
service-life
EPDs in BIM
estimation
CEN/TR 17005
Additional
impact
categories and
indicators
NOTE 1 The complete titles of the documents shown above can be found in Clause 3 or in the Bibliography.
NOTE 2 The documents in the grey fields are part of the current CEN/TC 350 work programme.
a
Functional requirements are part of the client’s brief and building regulations.
b
The revision of EN 16309 and EN 16627 as parts 2 and 3 of EN 15978 is under preparation in CEN/TC 350.
c
The document has been developed by ISO/TC 59/SC 14 “Design life”.
1 Scope
This document establishes the requirements and specific methods for the assessment of environmental,
economic and social performances of a civil engineering works while taking into account the civil
engineering works’ functionality and technical characteristics. By the means of this document the
decision making for a project is supported by providing a standardized method for enabling
comparability of scheme options.
The assessment of environmental and economic performances of a civil engineering works is based on
Life Cycle Assessment (LCA), Life Cycle Cost (LCC), Whole-Life Cost (WLC) and other quantified
environmental and economic information. The approach to the assessment covers all stages of the civil
engineering works life cycle and includes all civil engineering works related construction products,
processes and services, used over its life cycle.
This document is applicable to new and existing civil engineering works and refurbishment projects. The
environmental performance is based on data obtained from Environmental Product Declarations (EPD)
and additional indicators.
This document is not applicable for the assessment of the environmental, social and economic
performance of building(s) as part of the civil engineering works; instead, EN 15978, EN 16309 and
EN 16627 apply.
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 15804, Sustainability of construction works — Environmental product declarations — Core rules for the
product category of construction products
EN 16309, Sustainability of construction works — Assessment of social performance of buildings —
Calculation methodology
EN ISO 52000-1, Energy performance of buildings — Overarching EPB assessment — Part 1: General
framework and procedures (ISO 52000-1)
ISO 15686-1, Buildings and constructed assets — Service life planning — Part 1: General principles and
framework
ISO 15686-2, Buildings and constructed assets — Service life planning — Part 2: Service life prediction
procedures
ISO 15686-5, Buildings and constructed assets — Service life planning — Part 5: Life-cycle costing
ISO 15686-7, Buildings and constructed assets — Service life planning — Part 7: Performance evaluation
for feedback of service life data from practice
ISO 15686-8, Buildings and constructed assets — Service-life planning — Part 8: Reference service life and
service-life estimation
ISO 1996-2, Acoustics — Description, measurement and assessment of environmental noise — Part 2:
Determination of sound pressure levels
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological 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
accessibility
ability for users to access the service(s) that the civil engineering works is providing and/or to access
nature
Note 1 to entry: Examples of services that can be provided include water or energy supply and mobility service.
3.2
adaptability
ability of the object of assessments or parts thereof to be changed or modified to make suitable for a
particular use
[SOURCE: ISO 21929-1:2011, 3.4, modified – “of the object of assessments or parts thereof” has been
added.]
3.3
adaptation to climate change
climate change adaptation
process of adjustment to actual or expected climate and its effects
Note 1 to entry: In human systems, adaptation seeks to moderate or avoid harm or exploit beneficial
opportunities.
Note 2 to entry: In some natural systems, human intervention can facilitate adjustment to expected climate and
its effects.
[SOURCE: ISO 14090:2019, 3.1]
3.4
appliance
device or piece of equipment designed to perform a specific task
3.5
area of influence
area or combination of areas surrounding a civil engineering works that can be affected with changes to
their economic, environmental or social conditions by the civil engineering works’ operations throughout
its life cycle
Note 1 to entry: The area of influence is variable and dependent on the civil engineering works project, its
location and its life cycle stage.
Note 2 to entry: The area of influence is defined per aspect.
Note 3 to entry: The area of influence concerns only the civil engineering works and not construction products.
Example: Stones coming from China, China is not in the influence area.
[SOURCE: ISO/TS 21929-2:2015, 3.2, modified – The second sentence from Note 1 has been removed, the
Notes 2 and 3 have been added.]
3.6
assembled system
part of works
component or a set of components incorporated in the civil engineering works
3.7
brief
document that states the client’s requirements for a construction project
[SOURCE: ISO 6707-2:2017, 3.2.18, modified – “client’s” and “construction” has been added.]
3.8
building
construction works that has the provision of shelter for its occupants or contents as one of its main
purposes, usually enclosed and designed to stand permanently in one place
[SOURCE: ISO 6707-1:2020, 3.1.1.3, modified – “partially and totally” and Note 1 have been removed.]
3.9
civil engineering works
construction works comprising a structure, such as a dam, bridge, road, railway, runway, utilities,
pipeline, or sewerage system, or the result of operations such as dredging, earthwork, geotechnical
processes, but excluding a building and its associated site works
[SOURCE: ISO 6707-1:2020, 3.1.1.2, modified – Note 1 has been removed.]
3.10
climate
statistical description of weather in terms of the mean and variability of relevant quantities over a period
of time ranging from months to thousands or millions of years
Note 1 to entry: The classical period for averaging these variables is 30 years, as defined by the World
Meteorological Organization.
Note 2 to entry: The relevant quantities are most often near-surface variables such as temperature, precipitation
and wind.
[SOURCE: ISO 14090:2019, 3.4]
3.11
climate change
change in climate that persists for an extended period, typically decades or longer
Note 1 to entry: Climate change can be identified by such means as statistical tests (e.g. on changes in the mean,
variability).
Note 2 to entry: Climate change might be due to natural processes, internal to the climate system, or external
forcings such as modulations of the solar cycles, volcanic eruptions, and persistent anthropogenic changes in the
composition of the atmosphere or in land use.
[SOURCE: ISO 14090:2019, 3.5]
3.12
client
person or organization initiating and financing a project and approving the brief
[SOURCE: ISO 6707-1:2020]
3.13
construction product
item manufactured or processed for incorporation in civil engineering works
Note 1 to entry: Construction products are items supplied by a single responsible body.
[SOURCE: ISO 6707-1:2020, 3.4.1.2, modified – “construction works” has been replaced by “civil
engineering works”; Note 1 has been replaced.]
3.14
component
construction product manufactured as a distinct unit to serve a specific function or functions
3.15
construction site
area of land or water where construction work or civil engineering works is undertaken
[SOURCE: ISO 6707-1:2020, 3.1.1.5, modified – “other development” has been replaced by “civil
engineering works”.]
3.16
construction work
activities of forming a civil engineering works
[SOURCE: ISO 6707-1:2020, 3.5.1.1, modified – “construction works” has been replaced by “a civil
engineering works”.]
3.17
construction works
everything that is constructed or results from construction operations
Note 1 to entry: Refers to both building and civil engineering works.
[SOURCE: ISO 6707-1:2020, 3.1.1.1, modified – Note 1 has been removed.]
3.18
decommissioning
activities that change a building or a civil engineering works or an assembled system from an operational
status to a non-operational status
3.19
design life
service life intended by the designer
[SOURCE: ISO 15686-1:2011, 3.3]
3.20
discount rate
factor or rate used to convert future expenses or incomes to their present value reflecting the time value
of money
3.21
disposal
waste treatment operation other than recovery even where the operation has a secondary consequence
the reclamation of substances or energy
[SOURCE: Directive 2008/98/EC, modified – “disposal means any operation which is not” has been
replaced by “waste treatment operation other than” in the definition; “Annex I sets out a non-exhaustive
list of disposal operations” has been removed.]
3.22
downstream process
process that is carried out after the designated process in the stream of relevant processes
[SOURCE: ISO 21931-1:2010, 3.2]
3.23
economic aspect
characteristic of civil engineering works, part of works, processes or services related to their life cycle
that can cause change to economic conditions
[SOURCE: ISO 15392:2019, 3.12, modified – “construction works” has been replaced by “civil engineering
works”.]
3.24
economic impact
result of a change to the economic conditions, whether adverse, neutral or beneficial, wholly or partially
resulting from economic aspects
[SOURCE: ISO 15392:2019, 3.13.1, modified – definition of “impact” has been integrated in the definition.]
3.25
economic performance
performance related to economic impacts and economic aspects
3.26
environmental aspect
characteristic of civil engineering works, part of works, processes or services related to their life cycle
that can cause change to the environment
[SOURCE: ISO 15392:2019, 3.13, modified – “construction works” has been replaced by “civil engineering
works”.]
3.27
environmental impact
result of a change to the environment, whether adverse, neutral or beneficial, wholly or partially resulting
from environmental aspects
[SOURCE: ISO 15392:2019, 3.17.2, modified – definition of “impact” has been integrated in the definition.]
3.28
environmental performance
performance related to environmental impacts and environmental aspects
[SOURCE: ISO 15392:2019, 3.16, modified – Note 1 has been removed.]
3.29
escalation rate
positive or negative factor or rate reflecting an estimate of differential increase/decrease in the general
price level for a particular commodity, or group of commodities, or resource
[SOURCE: ISO 15686-1:2011, 3.3.2, modified – Note 1 has been removed.]
3.30
estimated service life
service life that a building or civil engineering works or an assembled system would be expected to have
in a set of specific in-use conditions, determined from reference service life data after taking into account
any differences from the reference in-use conditions
[SOURCE: ISO 15686-1:2011, 3.7, modified – “civil engineering works or an assembled system” has been
added in the definition.]
3.31
exported energy
energy, expressed per energy carrier, supplied by the technical building systems or integrated technical
systems of works through and beyond the system boundary
Note 1 to entry: The term “exported utilities” is used in this document to describe utilities, such as electricity, water,
heat, which may be exported.
[SOURCE: EN ISO 52000-1:2017, 3.4.20, modified –“or integrated technical systems of works”, and “and
beyond” have been added; “assessment boundary” has been replaced with “system boundary”; Note 1 has
been replaced and Note 2 has been removed.]
3.32
functional equivalent
quantified functional requirements and/or technical requirements for a building or civil engineering
works or an assembled system for use as a basis for comparison
[ISO 21931-1:2010, 3.7, modified – “or civil engineering works or an assembled system” has been added.]
3.33
functional performance
performance related to the functionality of a civil engineering works or an assembled system which is
required by the client, users and/or by regulations
3.34
functional requirement
type and level of functionality of a building, civil engineering works or assembled system which is
required by the client, users and/or by regulations
3.35
functionality
suitability or usefulness for a specific purpose or activity
[SOURCE: ISO 15686-10:2010, 3.13]
3.36
gate
point at which the construction product or material leaves the factory before it becomes an input into
another manufacturing process or before it goes to the distributor, a factory or a construction site
[SOURCE: ISO 21930:2017, 3.3.8]
3.37
ground works
work done to prepare sub-surfaces for the start of construction work
3.38
handover
step at which possession of the civil engineering works is surrendered to the client upon completion with
or without reservation
[ISO 6707-2:2017, 3.5.28 – “construction works” has been replaced by “civil engineering works”.]
3.39
impact category
class representing environmental issues of concern to which life cycle inventory analysis results may be
assigned
[SOURCE: EN ISO 14044:2006, 3.39]
3.40
impact category indicator
quantifiable representation of an impact category
[SOURCE: EN ISO 14044:2006, 3.40]
3.41
information module
compilation of data to be used as a basis for a Type III environmental declaration, covering a unit process
or a combination of unit processes that are part of the life cycle of a product
[SOURCE: ISO 14025:2006, 3.13]
3.42
integrated technical systems
installed technical equipment to support operation and maintenance of a building or civil engineering
works
Note 1 to entry: This includes technical building systems and other systems for sanitation, security, fire safety,
internal transport, building automation and control, and IT communications.
[SOURCE: EN 15643:2021, 3.51]
3.43
internal rate of return
IRR
discount rate, which makes the net present value equal to zero
3.44
in-use condition
any circumstance that can impact the performance of a civil engineering works or assembled system (part
of works) under normal use
[SOURCE: ISO 15686-8:2008, 3.5]
3.45
level of functionality
number indicating the relative functionality required for a users group or customer for one topic on a
predetermined demand scale from the level of the least (functionality) to the level of the most
(functionality)
Note 1 to entry: The level of functionality can be the consequence of several distinct functions required to act in
combination.
EXAMPLE Scale of integers from 0 to 9.
[SOURCE: ISO 15686-10:2010, 3.15]
3.46
life cycle
consecutive and interlinked stages in the life of the object under consideration
3.47
life cycle assessment
LCA
compilation and evaluation of the inputs, outputs and the potential environmental impacts of a product
system throughout its life cycle
Note 1 to entry: In this context, a civil engineering works or assembled system is considered a “product” and a
part of a “product system”.
[SOURCE: EN ISO 14044:2006, 3.2, modified – Note 1 to entry has been added.]
3.48
life cycle cost
LCC
cost of a civil engineering works or part of works throughout its whole life cycle
3.49
life-cycle costing
technique for estimating the cost of civil engineering works, systems and/or civil engineering works
components and materials, and for monitoring the cost incurred throughout the life cycle
3.50
life cycle impact assessment
LCIA
phase of life cycle assessment aimed at understanding and evaluating the magnitude and significance of
the potential environmental impacts for a product system throughout the life cycle of the product
Note 1 to entry: In this context, a civil engineering works or assembled system is considered a “product” and a
part of a “product system”.
[SOURCE: EN ISO 14044:2006, 3.4, modified – Note 1 to entry has been added.]
3.51
life cycle inventory analysis
LCI
phase of life cycle assessment involving the compilation and quantification of inputs and outputs for a
product throughout its life cycle
Note 1 to entry: In this context, a civil engineering works or assembled system is considered a “product” and a
part of a “product system”.
[SOURCE: EN ISO 14044:2006, 3.3, modified – Note 1 to entry has been added.]
3.52
maintainability
ability of a component, an assembled system (part of works) or civil engineering works to be retained in
a state in which it can perform its required functions or be restored to such a state when a fault occurs
[SOURCE: ISO 6707-1:2020, 3.7.3.90, modified – “or construction” has been replaced by “an assembled
system (part of works) or civil engineering works”.]
3.53
maintenance
combination of all technical and associated administrative actions during the service life to retain a civil
engineering works or an assembled system in a state in which it can perform its required functions
Note 1 to entry: Maintenance includes cleaning, servicing, repainting, replacing parts of the civil engineering
works where needed, etc.
[SOURCE: ISO 15686-1:2011, 3.13, modified – “building, or its parts,” has been replaced by “civil
engineering works or an assembled system”; Note 1 has been added.]
3.54
neighbourhood
people, their living space and social networks in the area of influence
3.55
net present value
NPV
sum of the discounted expenses and incomes related to an investment including initial investment cost
3.56
operational energy use
energy use of civil engineering works technical system during use and operation of the civil engineering
works
EXAMPLE In a case of a road, the use concerns traffic and the operation concerns maintenance, lighting.
3.57
operational water use
water use of technical civil engineering works system or users during use and operation of the civil
engineering works
3.58
performance
expression relating the magnitude of a particular aspect of the object of consideration relative to specified
requirements, objectives and/or targets
3.59
primary energy
energy that has not been subjected to any conversion or transformation process
[SOURCE: EN ISO 52000-1:2017, 3.3.10]
3.60
process
series of operations performed to achieve a desired result
[SOURCE: ISO 21931-1:2010, 3.11]
3.61
project
unique process, consisting of a set of coordinated and controlled activities undertaken to achieve an
objective
[SOURCE: ISO 6707-1:2020, 3.5.2.4]
3.62
project specification
specification of civil engineering works for a specific project that prescribes the construction work and
the construction products to be used and how they are to be applied
[SOURCE: ISO 6707-2:2017, 3.2.23, modified – “of civil engineering works” and “and how they are to be
applied” have been added.]
3.63
re-use
any operation by which products or components that are not waste are used again for the same purpose
for which they were conceived or used for other purposes without reprocessing
[SOURCE: Directive 2008/98/EC, Art. 3 no. 13, modified – “or used for other purposes without
reprocessing” has been added.]
3.64
recovery
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
[SOURCE: Directive 2008/98/EC, Art. 3, no. 15]
3.65
recycling
recovery operation by which waste materials are reprocessed into products, materials or substances
whether for the original or other purposes
Note 1 to entry: Recycling does not include energy recovery and the reprocessing into materials that are to be
used as fuels or for backfilling operations.
[SOURCE: Directive 2008/98/EC, Art. 3, no. 17, modified – the Note has been added.]
3.66
reference in-use conditions
in-use conditions under which the reference service life data are valid
Note 1 to entry: The reference in-use conditions can be based upon information gathered through testing or from
recorded performance and actual service life data of a component.
[SOURCE: ISO 15686-8:2008, 3.9]
3.67
reference service life
RSL
service life of a construction product, component, assembly or system which is known to be expected
under a set of reference in-use conditions and which may form the basis of estimating the service life
under other in-use conditions
Note 1 to entry: The RSL is described as part of the functional unit and considered in the calculation of
replacements at both the construction product level and construction works level (B4) and refurbishment (B5).
[SOURCE: ISO 15686-1:2011, 3.22, modified – “construction” has been added in the definition; “particular
set, i.e. a reference set of” has been replaced with “a set of reference” in the definition; Note 1 to entry has
been added.]
3.68
reference service life data
RSL data
information that includes the reference service life and any qualitative or quantitative data describing
the validity of the reference service life
EXAMPLE Typical data describing the validity of the reference service life include the description of the
component for which they apply, the reference in-use conditions under which they apply, and their quality.
[SOURCE: ISO 15686-8:2008, 3.8, modified – Notes 1 and 2 have been removed.]
3.69
reference study period
period of time over which the relevant aspects and impacts of the civil engineering works are analysed
Note 1 to entry: The reference study period is determined by the client.
Note 2 to entry: In some cases, the reference study period may differ significantly from the design life of the civil
engineering works.
3.70
refurbishment
planned large scale (substantial) modification and improvements to an existing construction works
Note 1 to entry: Refurbishment can be undertaken to facilitate continuation of the current function, including
technical modernization and a change of space plan, or a change of function to new use.
[SOURCE: ISO 6707-1:2020, 3.5.1.44, modified – “planned large scale (substantial)” has been added in the
definition; “plant, building or civil engineering works” has been replaced with “construction works” in
the definition; “to bring it up an acceptable condition” has been removed from the definition; Note 1 to
entry has been added.]
3.71
renewable energy
energy from renewable sources
energy from renewable non-fossil sources
EXAMPLE Wind, solar (photovoltaic), solar thermal, geothermal, hydrothermal, ocean energy, hydropower,
biomass, landfill gas, sewage treatment plant gas and biogases.
3.72
repair
actions outside planned maintenance to return component or assembled system to an acceptable
condition by renewal, replacement or mending worn, damaged or degraded parts, but not changing its
original parameters
Note 1 to entry: Repair refers to unplanned action because the component or assembled system has lost its
function, this can happen because of a lack of correct planned maintenance.
[SOURCE: ISO 6707-1:2020, 3.5.1.47, modified – “item” has been replaced with “actions outside planned
maintenance to return component or assembled system”; “but not changing its original parameters“ has
been added; Note 1 to entry has been added.]
3.73
replacement
installation of a new product, component or assembled system, which incorporates the function of the
replaced product, component or assembled system
[SOURCE: ISO 24516-3:2017, 3.21, modified – “asset” has been replaced with “product, component or
assembled system” in the definition.]
3.74
required service life
service life required by the client or through regulation
3.75
risk
quantifiable effect of an event that can be given with a certain range of probability
Note 1 to entry: An effect is a deviation from the expected. It can be positive, negative or both. An effect can arise
as a result of a response, or failure to respond, to an opportunity or to a threat related to objectives.
Note 2 to entry: Uncertainty is the state, even partial, of deficiency of information related to, understanding or
knowledge of, an event, its consequence, or likelihood.
3.76
scenario
collection of assumptions and information concerning an expected sequence of possible future events
3.77
secondary material
material recove
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