prEN 16903

SLOVENSKI STANDARD
01-januar-2022
Cevni sistemi iz polimernih materialov - Okoljske deklaracije za proizvode - Pravila
za kategorije proizvodov, ki dopolnjujejo EN 15804, za podzemne cevne sisteme iz
polimernih materialov
Plastics piping systems - Environmental product declarations - Product Category Rules
complementary to EN 15804, for buried plastics piping systems
Kunststoff-Rohrleitungssysteme - Umweltproduktdeklarationen - Produktkategorieregeln
entsprechend EN 15804 für erdverlegte Kunststoff-Rohrleitungssysteme
Systèmes de canalisations en plastique - Déclarations environnementales sur les
produits - Règles de définition des Catégories de Produits (RCP) complémentaires à
l'EN 15804, pour les systèmes enterrés de canalisations en plastique
Ta slovenski standard je istoveten z: prEN 16903
ICS:
13.020.20 Okoljska ekonomija. Environmental economics.
Trajnostnost Sustainability
23.040.20 Cevi iz polimernih materialov Plastics pipes
91.010.99 Drugi vidiki Other aspects
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2021
ICS 23.040.20; 23.040.45; 91.010.99
English Version
Plastics piping systems - Environmental product
declarations - Product Category Rules complementary to
EN 15804, for buried plastics piping systems
Systèmes de canalisations en plastique - Déclarations Kunststoff-Rohrleitungssysteme -
environnementales sur les produits - Règles de Umweltproduktdeklarationen -
définition des Catégories de Produits (RCP) Produktkategorieregeln entsprechend EN 15804 für
complémentaires à l'EN 15804, pour les systèmes erdverlegte Kunststoff-Rohrleitungssysteme
enterrés de canalisations en plastique
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 155.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16903:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Abbreviations . 7
5 General aspects . 7
5.1 Objective of the PCR for buried plastics piping systems . 7
5.2 Types of EPD with respect to life cycle stages covered . 7
5.3 Comparability of EPD for construction products . 10
5.4 Additional information . 10
5.5 Ownership, responsibility and liability for the EPD. 10
5.6 Communication formats . 10
6 Product Category Rules for LCA . 10
6.1 Product category . 10
6.2 Life cycle stages and their information modules to be included . 10
6.2.1 General. 10
6.2.2 A1-A3, Product stage, information modules . 10
6.2.3 A4-A5, Construction process stage, information modules . 10
6.2.4 B1-B5, Use stage, information modules related to the buried plastics piping systems . 10
6.2.5 B6-B7, use stage, information modules related to the operation of the buried plastics
piping systems . 10
6.2.6 C1-C4 End-of-life stage, information modules . 10
6.2.7 D, Benefits and loads beyond the system boundary, information module . 10
6.3 Calculation rules for the LCA . 11
6.3.1 Functional or declared unit . 11
6.3.2 Functional unit . 11
6.3.3 Declared unit . 12
6.3.4 Reference service life (RSL) . 12
6.3.5 System boundaries . 12
6.3.6 Criteria for the exclusion of inputs and outputs . 13
6.3.7 Selection of data . 13
6.3.8 Data quality requirements . 19
6.3.9 Developing product level scenarios . 19
6.3.10 Units . 19
6.4 Inventory analysis . 19
6.4.1 Collecting data . 19
6.4.2 Calculation procedures . 19
6.4.3 Allocation of input flows and output emissions . 19
6.5 Impact assessment . 19
7 Content of the EPD . 19
7.1 Declaration of general information. 19
7.2 Declaration of environmental indicators derived from LCA . 19
7.2.1 General . 19
7.2.2 Rules for declaring LCA information per module . 19
7.2.3 Indicators describing environmental impacts . 19
7.2.4 Indicators describing resource use . 20
7.2.5 Other environmental information describing different waste categories and output
flows . 20
7.3 Scenarios and additional technical information . 20
7.3.1 General . 20
7.3.2 Construction process stage . 20
7.3.3 B1-B7 use stage . 20
7.3.4 End-of-life . 20
7.4 Additional information on release of dangerous substances to, soil and ground
water during the use stage . 20
7.4.1 Indoor air . 20
7.4.2 Soil and ground water . 20
7.5 Aggregation of information modules . 20
8 Project report . 21
8.1 General . 21
8.2 LCA-related elements of the project report . 21
8.3 Documentation on additional information . 21
8.4 Data availability for verification . 21
9 Verification and validity of an EPD. 21
Annex A (informative) Waste . 22
A.1 End-of-waste . 22
A.2 Properties of hazardous wastes for Table 5 of EN 15804:2012+A2:2019 . 22
Annex B (informative) Formula for calculation of Module D . 23
B.1 Introduction . 23
B.2 Modules A to C . 23
B.3 Module D . 23
B.4 Calculation of Module D . 26
B.5 Summary . 28
Annex C (informative) Examples for functional units . 29
Annex D (informative) List of product standards . 32
Bibliography . 34

European foreword
This document (prEN 16903:2021) has been prepared by Technical Committee CEN/TC 155 “Plastics
piping systems and ducting systems”, the secretariat of which is held by NEN.
This document is currently submitted to the CEN Enquiry.
Introduction
European Standard EN 15804 provides core product category rules for all construction products and
services. It provides a structure to ensure that all Environmental Product Declarations (EPD) of
construction products, construction services and construction processes are derived, verified and
presented in a harmonized way.
This document, based on EN 15804, specifies the Product Category Rules for Environmental Product
Declarations (EPD) of buried plastics piping systems.
An EPD communicates verifiable, accurate, non-misleading environmental information for products and
their applications, thereby supporting scientifically based, fair choices and stimulating the potential for
market-driven continuous environmental improvement.
The standardization process has taken place in accordance with EN ISO 14025. All common issues are
covered horizontally for all product types in order to minimize vertical (branch specific) deviations.
EPD information is expressed in information modules as defined in EN 15804, which allow easy
organization and expression of data packages throughout the life cycle of the buried plastics piping
systems (constructions). The approach requires that the underlying data be consistent, reproducible
and comparable.
The EPD is expressed in a form that allows aggregation (addition) to provide complete information for,
constructions. This document does not deal with aggregation at the building level nor does this
document describe the rules for applying EPD in a building assessment.
The standard deals with a limited number of quantifiable predetermined parameters defined in
EN 15804. Future revisions may incorporate additional predetermined parameters in line with the
changes of EN 15804.
1 Scope
This document provides product category rules (PCR) for Type III environmental product declarations,
as described in EN ISO 14025 and EN 15942, for “buried plastics piping systems” intended for buried
pressure and non-pressure applications outside building structure.
This PCR covers the entire life cycle from cradle to grave for buried plastics piping systems conveying
fluids (sewer, water or gas), according to EN 12007, EN 805 or EN 476.
NOTE The PCR will be applied to systems composed of products covered by the list of product standards
provided in Annex D.
This document specifies the rules for the product category of construction products as defined in and is
intended to be used in conjunction with EN 15804.
As in EN 15804:2012+A2:2019, in addition to the common parts of EN 15804, this document for buried
plastics piping systems defines:
— the functional unit;
— the system boundaries;
— the elements of installation;
— the transport scenarios for both the raw material and the complete system;
— the trench conditions;
— reference service life (RSL);
— end of life scenarios.
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 476, General requirements for components used in drains and sewers
EN 805, Water supply - Requirements for systems and components outside buildings
EN 12007 (series), Gas infrastructure - Pipelines for maximum operating pressure up to and including
16 bar
EN 15804:2012+A2:2019, Sustainability of construction works - Environmental product declarations -
Core rules for the product category of construction products
EN ISO 14044:2006, Environmental management - Life cycle assessment - Requirements and guidelines
(ISO 14044:2006)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 15804:2012+A2:2019 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
4 Abbreviations
For the purposes of this document, the abbreviations given in EN 15804:2012+A2:2019 apply.
5 General aspects
5.1 Objective of the PCR for buried plastics piping systems
As 15804.
5.2 Types of EPD with respect to life cycle stages covered
The information in an EPD based on LCA shall cover all life cycle stages and information modules from
A1 to C4 and shall also include module D (see Figure 1).
NOTE The use of biobased materials could attribute to a lower environmental impact at stage A1.
Key
1 replacement of components, parts or systems
2 Only possible if the conditions to exclude the declaration of modules C1-C4 and module D are met
Figure 1 —Types of EPD with respect to life cycle stages covered and life cycle stages and modules for the construction assessment
5.3 Comparability of EPD for construction products
As in EN 15804.
5.4 Additional information
As in EN 15804.
5.5 Ownership, responsibility and liability for the EPD
As in EN 15804.
5.6 Communication formats
As in EN 15804.
6 Product Category Rules for LCA
6.1 Product category
The product category referred to in this document includes all buried plastics piping systems and
related services of all life cycle stages.
6.2 Life cycle stages and their information modules to be included
6.2.1 General
As in EN 15804.
6.2.2 A1-A3, Product stage, information modules
As in EN 15804.
6.2.3 A4-A5, Construction process stage, information modules
As in EN 15804.
Except: For A4, transport to the building site attention shall be paid on the data used ad most data are
based on weight (tons). In case that specific data are unavailable an average load of 6 000 kg per 80 m
truck can be used.
6.2.4 B1-B5, Use stage, information modules related to the buried plastics piping systems
As in EN 15804.
6.2.5 B6-B7, use stage, information modules related to the operation of the buried plastics
piping systems
As in EN 15804.
6.2.6 C1-C4 End-of-life stage, information modules
As in EN 15804.
6.2.7 D, Benefits and loads beyond the system boundary, information module
As in EN 15804.
6.3 Calculation rules for the LCA
6.3.1 Functional or declared unit
As EN 15804.
6.3.2 Functional unit
As in EN 15804, except:
The functional unit is based on the function performed by the plastic piping system or part of a system
in the construction work and on the RSL of the system. It depends on the intended use of the piping
system. The functional unit is defined in function of the application of the product in the construction
work.
Functional units for plastic piping systems shall give the following information:
— type, dimension and length;
— intended use;
— main performances of the piping system (e.g. pressure rating, flow capacity, ….);
— installation e.g. trench installation or no-dig, the type of granular bedding, etc.
— reference service life.
In Annex C examples of a typical water pressure system and a sewer system are described. The systems
can be scaled to any size.
The EPD shall present a bill of components and materials included in the FU. This list shall present the
number of pipes, fittings, jointing pieces and valves.
The following material flows shall be considered:
Product stage:
— Production of raw materials for the plastic pipes, incl. additives/SBR;
— Transport of plastic pipe raw materials to converter;
— Converting process for pipes (extrusion), including packing of the pipes;
— Production of raw materials for fittings;
— Transport of fittings raw materials to converter;
— Converting process for PE fittings (injection moulding), including packing of the fittings.
Production raw materials for PP manholes:
— Converting process for PP manholes (injection moulding), including packing of the manholes
— Production of galvanised steel components (if any) (raw materials + converting process);
— Production of rubber/SBR/EPDM sealing rings (raw materials + converting process).
Construction process stage:
— Transport of pipe system to the site;
— Installation of pipe system in the trench, including bedding or via trenchless technology (No-dig);
Use stage (maintenance and operational use):
— Operational use is not applicable;
— Maintenance of the pipe system for water if relevant.
End of life stage:
— Disassembly of plastic pipe system;
— Transport of pipe system after EOL to an end-of-life treatment;
— End-of-life treatment of the system.
NOTE 1 The design and installation details for buried pipe systems can be found in EN 1610, ISO/TS 10465-1,
CEN/TS 14578, CEN/TS 15223 and CEN/TS 1046 respectively.
NOTE 2 To allow scale-ability the EPD can be expressed in relative terms, e.g. “per meter of system”.
6.3.3 Declared unit
As in EN 15804.
6.3.4 Reference service life (RSL)
Buried plastics piping systems are regarded having 100 years RSL independent of their material.
NOTE The expected lifetime (RSL) of buried pipes is 100 years according to a number of studies:
https://www.teppfa.eu/wp-content/uploads/TEPPFA-PVC4Pipes-Position-on-100years-lifetime-of-PVC-
Pipes.pdf and https://www.teppfa.eu/wp-content/uploads/TEPPFA-PE100-Position-on-100years-lifetime-of-PE-
Pipes-2.pdf
6.3.5 System boundaries
6.3.5.1 General
As EN 15804 and including the upstream activities for the manufacturing of plastics materials.
6.3.5.2 Product stage
As in EN 15804.
6.3.5.3 Construction stage
As in EN 15804.
6.3.5.4 Use stage
6.3.5.4.1 General
As in EN 15804, and in addition: The installation of buried pipes shall follow the relevant European and
local standards, e.g. EN 12007, EN 805 or EN 476.
6.3.5.4.2 B1-B5 Use stage information modules related to the (building) construction fabric
As in EN 15804.
— B1 Use of the installed product in terms of any emissions to the environment (not covered by B2-
B7);
As in EN 15804.
— B2 Maintenance;
As in EN 15804.
— B3 Repair;
As in EN 15804.
— B4 Replacement;
As in EN 15804.
— B5 Refurbishment;
As in EN 15804.
6.3.5.4.3 B6 – B7 Use stage information modules related to the operation of the (building)
construction
— B6 Energy use to operate (building) construction integrated technical systems
As in EN 15804, with the general scenario of zero impact for buried plastic piping systems.
— B7 Operational water use by (building) construction integrated technical systems
As in EN 15804, with the general scenario of zero impact for buried plastic piping systems except
for pre-flushing, pressure testing and cleaning
6.3.5.5 End-of-life stage
As in EN 15804.
6.3.5.6 Benefits and loads beyond the product system boundary in module D
As in EN 15804.
6.3.6 Criteria for the exclusion of inputs and outputs
As in EN 15804.
6.3.7 Selection of data
6.3.7.1 General
As in EN 15804, except:
The product stage shall start with the definition of the composition of the material (recipe including
recyclates if appropriate) for all components of the piping system.
For LCA/EPD purposes the most appropriate and representative data shall be used in compliance with
EN 15804:2012+A2:2019, 6.3.6. If no specific data are available, appropriate publicly available data can
be used for any upstream or downstream processes that is out of producer control, as long as the
project report described the technological, geographical and time related representativity for generic
data used (see also Table 1).
Data of ancillary components (sealing, lubrication for installation, etc.) should be taken from their
producers or generic databases.
Table 1 — Application of generic and specific data
Modules Module A1-A3 A4 and A5 B1-B7 C1-C4

Production of Product manufacture Installation Use End-of-life
commodities, raw processes processes processes
materials
Upstream Processes that the Downstream processes
Process
processes manufacturer has
type
influence over
Generic data Manufacturer’s Generic or average or specific data
and/or average or specific
Data type
manufacturer’s data
specific data
The source of data shall be declared.
6.3.7.2 Data selection for life cycle stages A1 to A3
— A1 Extraction and processing of raw materials (e.g. mining processes) and biomass production and
processing (e.g. agricultural or forestry operations);
— Generic database.
— A1 Generation of electricity, steam and heat from primary energy resources, also including their
extraction, refining and transport;
— Generic database;
— Determination of the electricity mix.
— A1 Energy recovery and other recovery processes from secondary fuels, but not including those
processes that are part of waste processing in the previous product system;
— A2 Transportation up to the factory gate and internal transport;
— Transport distances;
— Modes of transportation (water, rail, etc.);
— Type and size of transport vehicle;
— Vehicle loads per journey.
— A3 Production of ancillary materials;
— The LCA data shall be case specific if available or generic;
— Energy consumption (kWh/kg product);
— Water use (m /kg product);
— Packaging of raw materials (kg/kg product for all packaging materials);
— Lubricant (if applicable) (kg/kg product).
— A3 Manufacturing of products (pipe system components);
— Energy consumption (kWh/kg product);
— Water use (m /kg product);
— Packaging of raw materials (kg/kg product for all packaging materials);
— Marking material (e.g. ink, colour stripes, etc. as applicable) (kg/kg product);
— Marking stripes (if applicable) (kg/kg product);
— Additional materials, such as stabilizers, fillers, impact modifiers, colourants and other
materials added to the main resin (if applicable) (kg/kg product).
— A3 Manufacturing of product packaging;
— Quantity of packaging materials used by the pipe system components’ producers (kg/kg).
— Generic data sets for production of packaging materials can be used.
— A1-A3 Processing up to the end-of-waste state or disposal of final residues including any packaging
not leaving the factory gate with the product.
— Quantity of production waste generated by the pipe system components producers.
— Generic, or specific country, regional or European scenarios for processing of waste.
Regardless the geographical coverage of a product system, the rules for defining the end-of-waste state
mentioned in Annex A of this document apply.
The output of waste during this life cycle stage may reach the end-of-waste state when it complies with
the conditions described in 6.3.5.5, end-of-life stage.
6.3.7.3 Data selection for life cycle stages A4 to A5
— A4 Transportation of the complete system including ancillary materials from the production gate to
the construction site.
— Transport distances.
— Modes of transportation (water, rail, etc.).
— Type and size of transport vehicle.
— Vehicle loads per journey.
— A4-A5 Wastage of construction products (additional production processes to compensate for the
loss of wastage of products).
— A4-A5 Waste processing of the waste from product packaging and product wastage during the
construction processes up to the end-of-waste state or disposal of final residues.
— Waste handling scenarios shall be developed consistent with the waste handling of other
lifecycle stages if relevant.
— Generic, or specific country, regional or European scenarios for processing of waste.
— Transportation to the waste handling sites shall be considered in accordance with C3.
— A5 Installation of the product into the construction including manufacture and transportation of
ancillary materials and any energy or water required for installation or operation of the
construction site. It also includes on-site operations to the product.
— The installation method shall be defined, e.g. open trench, no-dig or the use of trench boxes
which often is the case in urban areas.
— Installation of the pipe system into the trench.
— Ancillary materials and products used in the installation process shall be considered for the
functional unit (e.g. lubricant for the sockets, etc.).
— Digging out the trench (m ).
— Transport the soil to the depot or (km).
— Transport distances.
— Modes of transportation (water, rail, etc.).
— Type and size of transport vehicle.
— Vehicle loads per journey.
— Bedding and backfilling material (m ).
— Transport from the depot or mine (km).
— Modes of transport.
— Transport distances.
— Definition of vehicle (type and size).
— Determination of vehicle load per journey.
— Energy required for installation:
— Digging out the trench (MJ) or digging out a pit for a no-dig installation.
— Bringing in the bedding, backfill (MJ).
— Compaction of bedding and backfilling (MJ).
— Water required for installation (cleaning and testing) (m ).
6.3.7.4 Data selection for life cycle stages B1 to B5
— B1 Use of the installed product in terms of any emissions to the environment (not covered by B2-
B7);
As in EN 15804.
— B2 Maintenance;
— Cleaning:
— Water use (m );
— Detergent use (if appropriate) (litre/m cleaning water);
— Energy use (MJ).
— B3 Repair;
A scenario for any possible repair of the buried plastic pipe system shall be described.
— B4 Replacement;
Any condition requires a scenario of replacement shall be described. All the steps of the installation
shall be considered.
— B5 Refurbishment.
If any condition requires, a scenario of refurbishment shall be described. All the steps of the
installation shall be considered.
6.3.7.5 Data selection for life cycle stages B6 to B7
— B6 Energy use to operate (building) construction integrated technical systems.
In general, scenario of zero impact for buried plastic piping systems apply. If however any
conditions require other scenarios can be applied. All the steps of the installation shall be
considered.
— B7 Operational water use by (building) construction integrated technical systems
In general, scenario of zero impact for buried plastic piping systems apply. If however any
conditions require other scenarios can be applied. All the steps of the installation shall be
considered.
6.3.7.6 Data selection for life cycle stages C1 to C4
— C1 Deconstruction, including dismantling or demolition, of the product from the construction,
including initial on-site sorting of the materials:
— The amount of the excavated (removed) part of the buried pipe system has to be defined as
specific value reflecting in the ratio of the functional unit.
— In case no specific value can be defined a specific local (country or region) ratio should be
applied.
— C2 Transportation of the discarded product as part of the waste processing, e.g. to a recycling site
and transportation of waste, e.g. to final disposal;
At least the following items shall be defined for the transportation of excavated system components
to all the end of life treatments:
— Modes of transport.
— Transport distances.
— Type and size of vehicle.
— Vehicle load per journey.
— C3 Waste processing e.g. collection of waste fractions from the deconstruction and waste
processing of material flows intended for reuse, recycling and energy recovery. Waste processing
shall be modelled, and the elementary flows shall be included in the inventory.
NOTE 1 Only when materials have reached the end-of-waste-state they can be considered as materials for
energy recovery, provided the energy recovery process has an energy efficiency rate higher than 60 %.
— End of waste scenario(s) shall be considered. The following options exist:
— Mechanical recycling;
— Incineration;
— Left in ground;
— The EoL shall be declared as 100 % version of one of the three scenarios above.
In case that the “left in ground” scenario is selected, biogenic carbon contained in the products shall
be considered.
— C4 Waste disposal including physical pre-treatment and management of the disposal site.
NOTE 2 Waste processing is part of the product system under study. In the case of materials leaving the system
as secondary materials or fuels, such processes as collection and transport before the end-of-waste state are, as a
rule, part of the waste processing of the system under study.
Loads, (e.g. emissions) from waste disposal in module C4 are considered part of the product system
under study, according to the “polluter pays principle”.
6.3.8 Data quality requirements
As in EN 15804.
6.3.9 Developing product level scenarios
As in EN 15804.
6.3.10 Units
As in EN 15804.
6.4 Inventory analysis
6.4.1 Collecting data
Data collection shall follow the guidance provided in EN ISO 14044:2006, 4.3.2.
6.4.2 Calculation procedures
As in EN 15804.
6.4.3 Allocation of input flows and output emissions
6.4.3.1 General
As in EN 15804.
6.4.3.2 Co-product allocation
As in EN 15804.
6.4.3.3 Allocation procedure of reuse, recycling and recovery
As in EN 15804.
6.5 Impact assessment
As in EN 15804.
7 Content of the EPD
7.1 Declaration of general information
As in EN 15804.
7.2 Declaration of environmental indicators derived from LCA
7.2.1 General
As in EN 15804.
7.2.2 Rules for declaring LCA information per module
As in EN 15804.
7.2.3 Indicators describing environmental impacts
As in EN 15804.
7.2.4 Indicators describing resource use
As in EN 15804.
7.2.5 Other environmental information describing different waste categories and output flows
As in EN 15804.
7.3 Scenarios and additional technical information
7.3.1 General
As in EN 15804 with the limitation to EPD covering option entire life cycle from cradle to grave.
7.3.2 Construction process stage
7.3.2.1 A4, Transport to the construction site
As in EN 15804.
7.3.2.2 A5, Installation in the trench
As in EN 15804.
7.3.3 B1-B7 use stage
7.3.3.1 B1-B5 use stage related to the buried plastics piping systems’ material
As in EN 15804.
7.3.3.2 Reference service life
The reference service life of plastics piping systems is considered to be 100 years.
7.3.3.3 B6, use of energy and B7, use of water
As in EN 15804.
7.3.4 End-of-life
As in EN 15804.
7.4 Additional information on release of dangerous substances to, soil and ground water
during the use stage
7.4.1 Indoor air
As in EN 15804, with the general scenario of zero impact for buried plastic piping systems.
7.4.2 Soil and ground water
As in EN 15804.
Attention should be paid to substances that may be listed in any of REACH lists wherever applicable.
7.5 Aggregation of information modules
As in EN 15804.
8 Project report
8.1 General
As in EN 15804.
8.2 LCA-related elements of the project report
As in EN 15804.
8.3 Documentation on additional information
As in EN 15804.
8.4 Data availability for verification
As in EN 15804.
9 Verification and validity of an EPD
As in EN 15804.
Annex A
(informative)
Waste
A.1 End-of-waste
Figure A.1 — Decision-tree for end-of-waste
A.2 Properties of hazardous wastes for Table 5 of EN 15804:2012+A2:2019
The characteristic that render waste hazardous are described in existing applicable legislation, e.g. in
the European Waste Framework Directive.
Annex B
(informative)
Formula for calculation of Module D
B.1 Introduction
Energy recovery, re-use and recycling should be modelled in accordance with the allocation principle in
EN 15804 and by using the formula provided in this Annex B.
B.2 Modules A to C
Secondary materials and fuels enter the product system free of environmental burdens as from their
end-of-waste status point on. Any environmental impact caused during the transformation or use of
these secondary materials and/or fuels (after they have reached their end-of-waste status) are
considered within the product system boundaries.
The calculation of Modules A to C represents the environmental profile from the cradle to the grave.
Optionally module D can be calculated (benefits and loads beyond the systems boundaries).
B.3 Module D
Module D includes reuse, recovery and/or recycling potentials, expressed as net impacts and benefits. It
calculates the net environmental benefits or loads resulting from reuse, recycling and energy recovery
related to the net output flow of secondary fuels and materials using system expansion approach.
The calculation takes into account possible differences in functional equivalence between the output
flow and the substituting processes by means of the so-called value-correction factors.
EN 15804:2012+A2:2019 (p.29-30) defines Module D as: the NET impacts are only calculated for the
resulting net output flow in the following way:
— by adding all output flows of a secondary material or fuel and subtracting all input flows of the
secondary material or fuel from each sub-module first (e.g. B1-B5; C1-C4); then from the modules
(e.g. B, C); and finally from the total product system, resulting in net output flows or secondary
material or fuel form the product system;
— by adding the impacts connected to the recycling or recovery processes from beyond the system
boundary (i.e. after the end-of waste state) up to the point of functional equivalence where the
secondary material or energy substitutes primary production and subtracting the impacts resulting
from the substituted production of the product or substituted generation of energy from primary
resources;
— by applying a justified value-correction factor to reflect the difference in functional equivalence
where the output flow does not reach the functional equivalence of the substituting process.
It is important to determine the processes which are part of Module C “end of life” stage and those
which are used in Module D. Module D will be reported as an additional information module and will
not be added up to modules A to C in the overall environmental profile.
Depending on when a material reaches its end-of-waste status, certain processes will be allocated to
Module C or D, case by case investigation is necessary.
Table B.1 illustrates for the different EOL treatment options (landfill, thermal waste treatment, and
energy recovery, materials leaving the system as secondary fuel and recycling) which processes can
belong to Module C and Module D (fictive example as a case by case investigation is always needed
because the border depends on the end-of-waste status).
Table B.1 — Different EOL treatment options
Landfill Thermal waste Energy recovery Materials leaving Recycling
treatment the system as
secondary fuel
Criterion 1 Flow does not reach end-of-waste status Flow reaches end-of-waste status
Criterion 2 [not applicable] R1 value of R1 value of [not applicable] [not applicable]
incineration incineration
facility < 0,6 facility > 0,6
Resulting attribution of processes to information modules
C1 Dec
...