SIST EN 17074:2020
(Main)Glass in building - Environmental product declaration - Product category rules for flat glass products
Glass in building - Environmental product declaration - Product category rules for flat glass products
This European Standard covers all life cycle stages, from cradle to grave, namely product stage, construction process stage, use stage and end-of-life stage of glass products (see point 4), used in buildings.
While covering all life cycle stages, this PCR primarily focuses on the product stage, in particular the manufacturing of flat glass and the consequent processing into flat glass products (as listed in point 4.), from cradle to gate. It covers raw materials and energy supply, transport, flat glass manufacturing, flat glass processing, packaging and storage.
All requirements and recommendations in this PCR for the elaboration of the Life Cycle Inventory may be applicable to flat glass used in other applications, such as flat glass used in automotive.
This PCR includes the rules to produce EPD that contains more than one thickness or configuration of the same product.
This European Standard does not apply to glass blocks, glass paver units (EN 1051-1) and channel-shaped glass (EN 572-7, EN 15683-1).
Glas im Bauwesen - Umweltproduktdeklaration - Produktkategorieregeln für Flachglaserzeugnisse
Dieses Dokument deckt alle Lebenszyklusphasen, von der Wiege bis zur Bahre, ab, das heißt die Herstellungsphase, die Errichtungsphase, die Nutzungsphase und die Entsorgungsphase von Glaserzeugnissen (siehe Abschnitt 4), die in Gebäuden verwendet werden.
Obwohl sie alle Lebenszyklusphasen abdecken, konzentrieren sich die Produktkategorieregeln hauptsächlich auf die Herstellungsphase, insbesondere die Herstellung von Flachglas und die nachfolgende Verarbeitung zu Flachglaserzeugnissen (wie in Punkt 4 aufgeführt), von der Wiege bis zum Fabriktor. Es werden Ausgangsstoffe und Energiezufuhr, Transport, Flachglasherstellung, Flachglasverarbeitung, Verpackung und Lagerung abgedeckt.
Alle in diesen PCR festgelegten Anforderungen und Empfehlungen zur Ausarbeitung einer Sachbilanz dürfen auf Flachglas angewendet werden, das in anderen Anwendungen genutzt wird.
Diese PCR beinhalten die Regeln zur Erstellung einer EPD, die mehr als eine Stärke oder Konfiguration desselben Produkts enthält.
Verre dans la construction - Déclaration environnementale des produits - Règles régissant les catégories de produits en verre plat
La présente Norme européenne couvre l'ensemble des étapes du cycle de vie, depuis la production jusqu'à l'élimination finale, c'est-à-dire les étapes de production, de construction, d'utilisation et de fin de vie des produits verriers (voir Article 4) utilisés dans les bâtiments.
Bien que couvrant l'ensemble des étapes du cycle de vie, les présentes RCP portent essentiellement sur l'étape de production, et plus particulièrement la fabrication du verre plat et son traitement ultérieur au sein de produits en verre plat (voir Article 4), depuis la production jusqu'à l'élimination finale. Elles couvrent l'utilisation de matières premières et d'énergie, le transport, la fabrication du verre plat, le traitement du verre plat, ainsi que le conditionnement et le stockage.
Toutes les exigences et recommandations spécifiées dans les présentes RCP pour l'élaboration de l'inventaire du cycle de vie (ICV) peuvent s'appliquer au verre plat utilisé dans d'autres applications, comme dans le secteur automobile.
Les présentes RCP fournissent également les règles relatives à la production de DEP contenant plus d'une épaisseur ou configuration d'un même produit.
La présente Norme européenne ne s'applique pas aux briques et pavés de verre (EN 1051-1) ni au verre profilé (EN 572-7, EN 15683-1).
Steklo v gradbeništvu - Okoljske deklaracije za proizvode - Pravila za kategorije proizvodov iz ravnega stekla
Ta evropski standard zajema vse faze življenjskega cikla proizvodov iz stekla, in sicer od faze proizvoda, faze vgradnje, faze uporabe do faze odlaganja proizvodov iz stekla (glej točko 4), ki se uporabljajo v stavbah. Čeprav ta pravila za kategorije proizvodov zajemajo vse faze življenjskega cikla, se osredotočajo predvsem na fazo proizvoda, zlasti na proizvodnjo ravnega stekla in posledično predelavo v proizvode iz ravnega stekla (kot je navedeno v točki 4) »od zibelke do vrat«. Zajema oskrbo s surovinami in energijo, transport, proizvodnjo ravnega stekla, obdelavo ravnega stekla, pakiranje in skladiščenje. Vse zahteve in priporočila v teh pravilih za kategorije proizvodov za izdelavo seznama življenjskega cikla se lahko uporabljajo za ravno steklo pri drugih načinih uporabe, na primer za ravno steklo v avtomobilski industriji. Ta pravila za kategorije proizvodov vključujejo pravila za izdelavo okoljskih deklaracij na proizvodih z več kot eno debelino ali konfiguracijo istega izdelka.
Ta evropski standard se ne uporablja za steklene bloke, steklene tlakovce (EN 1051-1) in steklo v obliki kanala (EN 572-7, EN 15683-1).
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 17074:2020
01-februar-2020
Steklo v gradbeništvu - Okoljske deklaracije za proizvode - Pravila za kategorije
proizvodov iz ravnega stekla
Glass in building - Environmental product declaration - Product category rules for flat
glass products
Glas im Bauwesen - Umweltproduktdeklaration - Produktkategorieregeln für
Flachglaserzeugnisse
Verre dans la construction - Déclaration environnementale des produits - Règles
régissant les catégories de produits en verre plat
Ta slovenski standard je istoveten z: EN 17074:2019
ICS:
13.020.20 Okoljska ekonomija. Environmental economics.
Trajnostnost Sustainability
81.040.20 Steklo v gradbeništvu Glass in building
SIST EN 17074:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN 17074:2020
---------------------- Page: 2 ----------------------
SIST EN 17074:2020
EN 17074
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2019
EUROPÄISCHE NORM
ICS 81.040.20
English Version
Glass in building - Environmental product declaration -
Product category rules for flat glass products
Verre dans la construction - Déclaration Glas im Bauwesen - Umweltproduktdeklaration -
environnementale des produits - Règles régissant les Produktkategorieregeln für Flachglasprodukte
catégories de produits en verre plat
This European Standard was approved by CEN on 2 September 2019.
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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17074:2019 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 17074:2020
EN 17074:2019 (E)
Contents Page
European foreword . 3
Introduction . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 7
4 Products covered/ Products category . 8
5 Comparability of EPDs . 10
6 Date of publication . 10
7 PCR review . 10
8 Expiration date . 10
9 Product category rules for LCA . 10
10 Content of the EPD . 19
Annex A (informative) Reference Service Life justification . 26
Annex B (informative) Glass manufacturing process. 27
Annex C (informative) Method to calculate the potential environmental benefits of the use
of glass. . 28
Annex D (informative) Recycling glass into new flat glass products (closed-loop recycling) . 29
Bibliography . 31
2
---------------------- Page: 4 ----------------------
SIST EN 17074:2020
EN 17074:2019 (E)
European foreword
This document (EN 17074:2019) has been prepared by Technical Committee CEN/TC 129 “Glass in
building”, the secretariat of which is held by NBN.
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 April 2020, and conflicting national standards shall be
withdrawn at the latest by April 2020.
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.
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.
3
---------------------- Page: 5 ----------------------
SIST EN 17074:2020
EN 17074:2019 (E)
Introduction
This document provides Product Specific Category Rules for flat glass products (Flat Glass PCR) used in
buildings and other construction works to support the assessment of the environmental performance
and the development of Environment Product Declarations.
This Flat Glass PCR aims at complementing the general rules established in EN 15804:2012+A1:2013,
by providing additional detailed rules on technical and environmental aspects of the manufacture of flat
glass products, as well as information on relevant aspects linked to use and end-of-life stages, on a
harmonized and scientific basis.
It specifies the requirements for the Life Cycle Assessment (LCA) study and the format and content of
the EPD itself.
In the Environment Product Declarations, the information is presented by way of a modular approach,
which allows for the easy organization and expression of data packages throughout the life cycle stages
of the product. The approach requires that the underlying data should be consistent, reproducible and
comparable.
4
---------------------- Page: 6 ----------------------
SIST EN 17074:2020
EN 17074:2019 (E)
1 Scope
This document covers all life cycle stages, from cradle to grave, namely product stage, construction
process stage, use stage and end-of-life stage of glass products (see Clause 4), used in buildings.
While covering all life cycle stages, this PCR primarily focuses on the product stage, in particular the
manufacturing of flat glass and the consequent processing into flat glass products (as listed in point 4.),
from cradle to gate. It covers raw materials and energy supply, transport, flat glass manufacturing, flat
glass processing, packaging and storage.
All requirements and recommendations in this PCR for the elaboration of the Life Cycle Inventory may
be applicable to flat glass used in other applications.
This PCR includes the rules to produce EPD that contains more than one thickness or configuration of
the same product.
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 572-1:2012+A1:2016, Glass in building - Basic soda lime silicate glass products - Part 1: Definitions
and general physical and mechanical properties
EN 572-2, Glass in building - Basic soda lime silicate glass products - Part 2: Float glass
EN 572-3, Glass in building - Basic soda lime silicate glass products - Part 3: Polished wired glass
EN 572-4, Glass in building - Basic soda lime silicate glass products - Part 4: Drawn sheet glass
EN 572-5, Glass in building - Basic soda lime silicate glass products - Part 5: Patterned glass
EN 572-6, Glass in building - Basic soda lime silicate glass products - Part 6: Wired patterned glass
EN 572-7, Glass in building - Basic soda lime silicate glass products - Part 7: Wired or unwired channel
shaped glass
EN 1036-1, Glass in building - Mirrors from silver-coated float glass for internal use - Part 1: Definitions,
requirements and test methods
EN 1051-1, Glass in building - Glass blocks and glass pavers - Part 1: Definitions and description
EN 1096-1, Glass in building - Coated glass - Part 1: Definitions and classification
EN 1279-1, Glass in Building - Insulating glass units - Part 1: Generalities, system description, rules for
substitution, tolerances and visual quality
EN 1748-1-1, Glass in building - Special basic products -Borosilicate glasses - Part 1-1: Definition and
general physical and mechanical properties
EN 1748-2-1, Glass in building - Special basic products - Glass ceramics - Part 2-1 Definitions and general
physical and mechanical properties
EN 1863-1, Glass in building - Heat strengthened soda lime silicate glass - Part 1: Definition and
description
5
---------------------- Page: 7 ----------------------
SIST EN 17074:2020
EN 17074:2019 (E)
EN 12150-1:2015+A1:2019, Glass in building - Thermally toughened soda lime silicate safety glass - Part
1: Definition and description
EN 12337-1, Glass in building - Chemically strengthened soda lime silicate glass - Part 1: Definition and
description
EN 13024-1, Glass in building - Thermally toughened borosilicate safety glass - Part 1: Definition and
description
EN 14178-1, Glass in building - Basic alkaline earth silicate glass products - Part 1: Float glass
EN 14179-1, Glass in building - Heat soaked thermally toughened soda lime silicate safety glass - Part 1:
Definition and description
EN 14321-1, Glass in building - Thermally toughened alkaline earth silicate safety glass - Part 1: Definition
and description
EN 15681-1, Glass in building - Basic alumino silicate glass products - Part 1: Definitions and general
physical and mechanical properties
EN 15682-1, Glass in building - Heat soaked thermally toughened alkaline earth silicate safety glass - Part
1: Definition and description
EN 15683-1, Glass in building - Thermally toughened soda lime silicate channel shaped safety glass - Part
1: Definition and description
EN 15755-1, Glass in building - Adhesive backed polymeric filmed glass - Part 1: Definitions and
requirements
EN 15804:2012+A1:2013, Sustainability of construction works - Environmental product declarations -
Core rules for the product category of construction products
EN 16477-1, Glass in building - Painted glass for internal use - Part 1: Requirements
EN ISO 12543-1, Glass in building - Laminated glass and laminated safety glass - Part 1: Definitions and
description of component parts (ISO 12543-1)
EN ISO 12543-2, Glass in building - Laminated glass and laminated safety glass - Part 2: Laminated safety
glass (ISO 12543-2)
EN ISO 12543-3, Glass in building - Laminated glass and laminated safety glass - Part 3: Laminated glass
(ISO 12543-3)
EN ISO 14025, Environmental labels and declarations - Type III environmental declarations - Principles
and procedures (ISO 14025)
6
---------------------- Page: 8 ----------------------
SIST EN 17074:2020
EN 17074:2019 (E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 15804:2012+A1:2013 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
by-product
substance or object, resulting from a production process, the primary aim of which is not the
production of that item, and which meets the following conditions:
(a) further use is certain;
(b) it can be used directly without any further processing other than normal industrial practice;
(c) it is produced as an integral part of a production process; and
(d) further use is lawful
[SOURCE: DIRECTIVE 2008/98/EC, Article 5]
3.2
end-of-waste status
certain specified waste ceases to be waste when it has undergone a recovery, including recycling,
operation and complies with specific criteria developed in accordance with the following conditions:
(a) it is commonly used for specific purposes;
(b) a market or demand exists;
(c) it fulfils the technical requirements for the specific purposes and meets the existing legislation and
standards applicable to products; and
(d) the use will not lead to overall adverse environmental or human health impacts
[SOURCE: DIRECTIVE 2008/98/EC, Article 6]
Note 1 to entry: Criteria for determining when glass cullet destined for the production of glass substances or
objects in re-melting processes ceases to be waste are established by the Commission Regulation No 1179/2012.
3.3
internal cullet
composed of defective products detected and rejected by a quality control process during the industrial
process of glass manufacturing, transition phases of product changes (such as thickness and/or colour
changes) and production offcuts
Note 1 to entry: These materials are immediately absorbed by the respective industrial process as a raw
material for a new melting operation, not leaving the glass manufacturing plant.
[SOURCE: JRC-IPTS Working document – EoW criteria for waste glass]
7
---------------------- Page: 9 ----------------------
SIST EN 17074:2020
EN 17074:2019 (E)
3.4
external cullet
waste glass that is collected and/or reprocessed with the purpose of recycling
Note 1 to entry: External cullet can be of two types, pre-consumer, also called post-industrial glass cullet, and
post-consumer glass cullet.
[SOURCE: JRC-IPTS Working document – EoW criteria for waste glass].
3.5
pre-consumer cullet
waste glass resulting from the manufacturing of products that contain glass as one of their components,
and which leaves the specific facility where it was generated but not reaching the consumer market
Note 1 to entry: An example of pre-consumer cullet is the glass cullet constituted by off cuts of the production of
insulating glass which leave the processing facility and are re-melted in the flat glass manufacturing facility.
Note 2 to entry: Pre-consumer cullet if sorted properly fulfils the cullet specifications of the flat glass
manufacturers and can be directly sent back to the furnace without additional treatment.
[SOURCE: JRC-IPTS Working document – EoW criteria for waste glass]
3.6
post-consumer cullet
waste glass originated after the use of the glass products at the consumer market
[SOURCE:JRC-IPTS Working document – EoW criteria for waste glass]
3.7
similar product
product covered by this PCR produced by the same company using the same production process
4 Products covered/ Products category
4.1 General
Glass is used in a variety of construction applications to provide a transparent, impermeable barrier,
which may have additional insulating, solar control, security, noise reduction or decorative properties.
Glass is also used as a base component for other technologies such as photovoltaic cells, which may be
incorporated in construction works.
These Product Category Rules (PCR) are applicable to the production of flat glass products for use in
buildings such as:
a) basic glass products according to EN 572-1:2012+A1:2016:
• float glass according to EN 572-2;
• polished wired glass according to EN 572-3;
• drawn sheet glass according to EN 572-4;
• patterned glass according to EN 572-5;
• wired patterned glass according to EN 572-6;
8
---------------------- Page: 10 ----------------------
SIST EN 17074:2020
EN 17074:2019 (E)
• wired or unwired channel-shaped according to EN 572-7;
b) special basic glass products:
• borosilicate glass according to EN 1748-1-1;
• glass ceramics according to EN 1748-2-1;
• alkaline earth silicate glass according to EN 14178-1;
• alumina silicate according to EN 15681-1;
• glass blocks and glass pavers according to EN 1051-1;
c) processed glasses:
• heat strengthened soda lime silicate glass according to EN 1863-1;
• thermally toughened soda lime silicate safety glass according to EN 12150-1:2015+A1:2019;
• heat soaked thermally toughened soda lime silicate safety glass according to EN 14179-1;
• chemically strengthened soda lime silicate glass according to EN 12337-1;
• thermally toughened borosilicate safety glass according to EN 13024-1;
• thermally toughened alkaline earth silicate safety glass according to EN 14321-1;
• heat soaked thermally toughened alkaline earth silicate safety glass according to EN 15682-1;
• thermally toughened soda lime silicate channel shaped safety glass according to EN 15683-1;
• laminated glass and laminated safety glass according to EN ISO 12543-1, EN ISO 12543-2 and
EN ISO 12543-3;
• insulating glass unit according to EN 1279-1;
• coated glass according to EN 1096-1;
• mirror form silvered coated glass for interior use according to EN 1036-1;
• painted glass according to EN 16477-1;
• adhesive back polymeric filmed glass according to EN 15755-1;
• surface worked glass (e.g. sand blasted, acid etched);
• any combination of the above.
NOTE 1 The above list of products is not exhaustive. The PCR can also apply to other glass products not listed
above.
NOTE 2 These Product Category Rules are applicable to the whole glass product including all components, not
only the glass element. For example, they would include the sealant in an insulating glass unit.
9
---------------------- Page: 11 ----------------------
SIST EN 17074:2020
EN 17074:2019 (E)
4.2 Inclusion of several products in the same EPD
Similar products can be presented in the same EPD but using different tables. A set of indicators and
technical information per product shall be included.
5 Comparability of EPDs
Comparison of EPDs of products used in buildings should consider the complete life cycle (cradle to
grave EPDs) as it should be based on the product’s use and its impacts on the building
(EN 15804:2012+A1:2013).
For comparison of EPDs of glass products used in buildings (comparisons at sub-building level), the
requirements of comparability set out in EN 15804:2012+A1:2013 and EN ISO 14025 shall be met.
Comparison of EPDs is not a simple and direct process. It requires the assurance of comparable
conditions and assumptions to avoid inaccurate conclusions. Functional requirements, as well as
technical and environmental characteristics and conditions must be the same.
6 Date of publication
Conditions of EN 15804:2012+A1:2013 apply.
7 PCR review
Conditions of EN 15804:2012+A1:2013 apply.
8 Expiration date
Conditions of EN 15804:2012+A1:2013 apply.
9 Product category rules for LCA
9.1 General
A Life Cycle Analysis (LCA) shall be performed, conforming to this PCR, in order to identify the
environmental impacts of each life cycle phase of the product.
The scope of the LCA shall include a description of the following according to this PCR:
• Functional unit;
• Reference Service Life;
• System boundaries;
• Criteria for the exclusion of inputs and outputs (cut-off rules);
• Selection of data and data quality requirements.
9.2 Functional unit
2
For each of the glass products listed in Clause 4, the functional unit is one square metre (1 m ) used as
glazing product and shall be complemented by one or several performance characteristics, such as
Transmittance, Reflectance, U-value, g-value, acoustics and safety classification according to European
standards.
10
---------------------- Page: 12 ----------------------
SIST EN 17074:2020
EN 17074:2019 (E)
The reference flow shall be defined as regards the thickness and further configuration of the glass
products
9.3 Reference Service Life
As a reference, a service life of 30 years (see Annex A) shall be used, unless otherwise indicated in
product standard or specified by the manufacturer for specific in-use conditions.
9.4 System boundaries
The system boundaries define the unit processes that are included in the product system (see Figure 1).
The system boundaries of the EPD shall be described appropriately: cradle to gate, cradle to gate - with
options, cradle to grave], etc. It should be apparent as to what processes are considered in what
modules.
The system boundaries covered by these rules include all life cycle stages, i.e. product stage,
construction stage, use stage and end-of-life stage. The relevant modules included in each life cycle
stage are illustrated in Table 1. For cradle to gate, only modules A1 to A3 shall be mandatory, other
modules shall be used for other system boundaries (e.g. cradle to grave).
Table 1 — Life cycle stages and modules covered in the context of this PCR
Benefits
and loads
CONSTRUCTION END-OF-LIFE beyond
PRODUCT STAGE USE STAGE
STAGE STAGE the
system
boundary
A1/A'1 A2/A'2 A3/A'3 A4 A5 B1 B2 B3 B4 B5 B6 B7 C1 C2 C3 C4 D
M M M O O 0 O NA NA NA O NA O O O O O
M: mandatory, O: optional, NA: not applicable.
Module A3 of the product stage includes the manufacturing of flat glass and, in case it applies, the glass
processing into different transformed glass products.
In module A5 the ancillary elements to install the glass/ glass products in the building are not taken into
account because there are many different considerations related to the installation in the building
(depending on the type of building, frame materials, etc.). Thus, the ancillary elements will be
considered in the scenarios established under the Environmental Product Declaration of the window/
façade systems. Packaging waste shall be included in A'3 (see 9.8.1.4).
11
Raw Material supply
(extraction, processing, recycled
material)
Transport to manufacturer
Manufacture
Transport to building site
Installation in building
Use/ application
Maintenance
Repair
Replacement
Refurbishment
Operational energy use
Operational water use
Deconstruction/ demolition
Transport to end-of-life
Waste processing for reuse,
recovery or recycling
Disposal
Reuse, recovery or recycling
potential
---------------------- Page: 13 ----------------------
SIST EN 17074:2020
EN 17074:2019 (E)
Flows related to human activities such as lighting, heating, cleaning of workshops, administration and
employee transport are excluded from the system boundaries.
The production of plants, machines and transportation systems inside the factories is also excluded
since the related flows are assumed to be negligible, compared to the production of glass products
when the comparison is done at the timescale of the reference service life of plants, machines or
transportation systems inside the factory.
EN 15804:2012+A1:2013 does not include any assessment of potential environmental benefits from the
product’s use in the building, (e.g. from energy savings due to a better insulation or solar gains in the
building when glass products are in use).
Since this standard does not provide the system boundaries nor the methodology for the calculation of
such benefits, they shall not be included in the calculations of the results presented in the EPD.
However, environment benefits from energy savings and losses in the use stage may be presented as
‘additional information’ in the EPD. When calculating the environmental benefits during the use phase
of glass products, the methodology applied shall be documented (see Annex C).
Figure 1 — System boundaries
12
---------------------- Page: 14 ----------------------
SIST EN 17074:2020
EN 17074:2019 (E)
9.5 Criteria for the exclusion of inputs and outputs (cut-off rules)
In the life cycle assessment, all parameters from production data shall be included, i.e. all raw material
used per formulation, utilized thermal energy, internal fuel and electric power consumption, direct
production of waste and all available emission measurements.
According to EN 15804:2012+A1:2013, mass flows representing less than 1 % of the total mass input
and/or energy flows representing less than 1 % of the total primary energy usage of the associated unit
process may be omitted if data are not available. Cumulative omitted mass and energy usage shall not
exceed 5 % per module (i.e. per module A, B, C or D).
Substances of Very High Concern (SVHC) i.e. substances meeting the criteria in Article 57 and identified
in accordance with Article 59(1) of REACH Regulation (EC) N°1907/2006, in a concentration above
0.1 % by weight of the glass final product, shall be included in the Life Cycle Inventory and the cut-off
rules shall not apply.
9.6 Selection of data and data quality
Selection of data and data quality requirements shall follow rules specified in EN 15804:2012+A1:2013.
As a general rule, manufacturer’s average data or specific data as defined in EN 15804:2012+A1:2013,
derived from specific production processes, shall be the first choice as a basis for the LCA and EPD
calculations.
This type of data are required for at least the processes the producer of the glass products has influence
over (Table 2). In the case of this PCR, it means for flat glass manufacturing (module A3) and processing
(module A’3).
Table 2 — Application of generic and specific data
MODULE A1-A3 / A'1-A'3 A4 and A5 B1-B7 C1-C4
MODULES Production of
Product Installation End-of-life
commodities, Use processes
manufacture processes processes
raw materials
Processes the
Upstream manufacturer
Process type Downstream processes
processes has influence
over
Manufacturer’s
Data type Generic data average or Generic data
specific data
Generic data can be used in modules A1 and A’1 (production of raw materials for flat glass
manufacturing -A1- and glass processing – A’1). Materials origins, extraction and/ preparation
processes shall be properly and carefully selected from commercially available LCA databases and
ideally confirmed by raw materials suppliers. That is particularly important in the case of materials
with highest impacts in the results of the LCAs and environmental indicators.
9.7 Allocation of inputs and outputs (allocation rules)
Partitioning of the input or output flows from the processes in the production stage of the glass (A1-A3)
between the product system under study and any other product system should be avoided as far as
possible. If such partitioning cannot be avoided, (i.e. when the only practical option is allocation) then
this shall be done on a physical basis for A1 to A3 and be calculated for the respective reference unit of
kg.
13
---------------------- Page: 15 ----------------------
SIST EN 17074:2020
EN 17074:2019 (E)
For example, in case of a float line producing float glass from different thicknesses, if partitioning
cannot be avoided, input and output flows shall be allocated based on mass. However, the resulting
2
impacts shall be recomputed per square metre (m ) with a given thickness and density to align with the
functional unit.
If such partitioning of the input or output flows from the processes in the production stage of the glass
processing (A’1 to A’3) cannot be avoided then it shall be done on a physical basis for A’1 to A’3 and be
2
calculated for the respective reference unit of m .
9.8 Building Life Cycle Information
9.8.1 Product Stage (A1-A3 and A’1-A’3)
9.8.1.1 General
Modules A1-A3 cover the production stage. Modules A1-A3 correspond to the manufacture of flat glass
and modules A’1-A’3 to its further processing into flat glass products (see Figure 2). The information
from these three modules can be given independently (for each of the sub-modules A1, A2 and A3) or
aggregated (A1-A3).
The definition of Modules A1-A3 should be specified in the scope of the study. Fo
...
SLOVENSKI STANDARD
oSIST prEN 17074:2017
01-april-2017
Steklo v stavbah - Okoljske deklaracije za proizvode - Pravila za kategorije
proizvodov iz ravnega stekla
Glass in building - Environmental product declaration - Product category rules for flat
glass products
Glas im Bauwesen - Umweltproduktdeklaration - Produktkategorieregeln für
Flachglaserzeugnisse
Verre dans la construction - Déclaration environnementale des produits - Règles
régissant les catégories de produits en verre plat
Ta slovenski standard je istoveten z: prEN 17074
ICS:
13.020.20 Okoljska ekonomija. Environmental economics.
Trajnostnost Sustainability
81.040.20 Steklo v gradbeništvu Glass in building
oSIST prEN 17074:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN 17074:2017
---------------------- Page: 2 ----------------------
oSIST prEN 17074:2017
DRAFT
EUROPEAN STANDARD
prEN 17074
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2017
ICS 81.040.20
English Version
Glass in building - Environmental product declaration -
Product category rules for flat glass products
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 129.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17074:2017 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 17074:2017
prEN 17074:2017 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 7
4 Products covered/ Products category . 8
4.1 General . 8
4.2 Inclusion of several products in the same EPD . 9
5 Comparability of EPDs . 9
6 Date of publication . 10
7 PCR review . 10
8 Expiration date . 10
9 Product category rules for LCA . 10
9.1 General . 10
9.2 Functional unit . 10
9.3 Reference Service Life . 10
9.4 System boundaries . 10
9.5 Criteria for the exclusion of inputs and outputs (cut-off rules) . 12
9.6 Selection of data and data quality . 12
9.7 Allocation of inputs and outputs (allocation rules) . 13
9.8 Building Life Cycle Information . 13
9.8.1 Product Stage (A1-A3 and A’1-A’3) . 13
9.8.2 Construction process stage (A4-A5) . 16
9.8.3 Use stage (B1-B7) . 16
9.8.4 End-of-life stage (C1-C4) . 17
9.8.5 Transport (A2, A2’, A4, C2) . 17
9.8.6 Supplementary information (Module D) . 18
9.9 Life Cycle Impact Assessment . 18
10 Content of the EPD . 19
10.1 General information . 19
10.2 Product information . 19
10.3 Life Cycle Analysis data . 19
10.4 Additional information . 22
Annex A (informative) Glass manufacturing process. 23
Annex B (informative) Method to calculate the potential environmental benefits of the use
of glass. . 24
Annex C (informative) Module D - Benefits of recycling glass into new flat glass products
(closed-loop recycling). 25
Bibliography . 27
2
---------------------- Page: 4 ----------------------
oSIST prEN 17074:2017
prEN 17074:2017 (E)
European foreword
This document (prEN 17074:2017) has been prepared by Technical Committee CEN/TC 129 “Glass in
building”, the secretariat of which is held by NBN.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
3
---------------------- Page: 5 ----------------------
oSIST prEN 17074:2017
prEN 17074:2017 (E)
Introduction
This document provides Product Specific Category Rules for flat glass products (Flat Glass PCR) used in
buildings and other construction works to support the assessment of the environmental performance
and the development of Environment Product Declarations.
This Flat Glass PCR aims at complementing the general rules established in EN 15804, by providing
additional detailed rules on technical and environmental aspects of the manufacture of flat glass
products, as well as information on relevant aspects linked to use and end-of-life stages, on a
harmonized and scientific basis.
It specifies the requirements for the Life Cycle Assessment (LCA) study and the format and content of
the EPD itself.
In the Environment Product Declarations, the information is presented by way of a modular approach,
which allow easy organization and expression of data packages throughout the life cycle stages of the
product. The approach requires that the underlying data should be consistent, reproducible and
comparable.
4
---------------------- Page: 6 ----------------------
oSIST prEN 17074:2017
prEN 17074:2017 (E)
1 Scope
This European Standard covers all life cycle stages, from cradle to grave, namely product stage,
construction process stage, use stage and end-of-life stage of glass products (see point 4), used in
buildings.
While covering all life cycle stages, this PCR primarily focuses on the product stage, in particular the
manufacturing of flat glass and the consequent processing into flat glass products (as listed in point 4.),
from cradle to gate. It covers raw materials and energy supply, transport, flat glass manufacturing, flat
glass processing, packaging and storage.
All requirements and recommendations in this PCR for the elaboration of the Life Cycle Inventory may
be applicable to flat glass used in other applications, such as flat glass used in automotive.
This PCR includes the rules to produce EPD that contains more than one thickness or configuration of
the same product.
This European Standard does not apply to glass blocks, glass paver units (EN 1051-1) and channel-
shaped glass (EN 572-7, EN 15683-1).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 572-1, Glass in building - Basic soda lime silicate glass products - Part 1: Definitions and general
physical and mechanical properties
EN 572-2, Glass in building - Basic soda lime silicate glass products - Part 2: Float glass
EN 572-3, Glass in building - Basic soda lime silicate glass products - Part 3: Polished wired glass
EN 572-4, Glass in building - Basic soda lime silicate glass products - Part 4: Drawn sheet glass
EN 572-5, Glass in building - Basic soda lime silicate glass products - Part 5: Patterned glass
EN 572-6, Glass in building - Basic soda lime silicate glass products - Part 6: Wired patterned glass
EN 572-7, Glass in building - Basic soda lime silicate glass products - Part 7: Wired or unwired channel
shaped glass
EN 1036-1, Glass in building - Mirrors from silver-coated float glass for internal use - Part 1: Definitions,
requirements and test methods
EN 1096-1, Glass in building - Coated glass - Part 1: Definitions and classification
EN 1279-1, Glass in Building - Insulating glass units - Part 1: Generalities, dimensional tolerances and
rules for the system description
EN 1748-1-1, Glass in building - Special basic products -Borosilicate glasses - Part 1-1: Definition and
general physical and mechanical properties
EN 1748-2-1, Glass in building - Special basic products - Glass ceramics - Part 2-1 Definitions and general
physical and mechanical properties
5
---------------------- Page: 7 ----------------------
oSIST prEN 17074:2017
prEN 17074:2017 (E)
EN 1863-1, Glass in building - Heat strengthened soda lime silicate glass - Part 1: Definition and
description
EN 12150-1, Glass in building - Thermally toughened soda lime silicate safety glass - Part 1: Definition and
description
EN 12337-1, Glass in building - Chemically strengthened soda lime silicate glass - Part 1: Definition and
description
EN 13024-1, Glass in building - Thermally toughened borosilicate safety glass - Part 1: Definition and
description
EN 14178-1, Glass in building - Basic alkaline earth silicate glass products - Part 1: Float glass
EN 14179-1, Glass in building - Heat soaked thermally toughened soda lime silicate safety glass - Part 1:
Definition and description
EN 14321-1, Glass in building - Thermally toughened alkaline earth silicate safety glass - Part 1: Definition
and description
EN 15681-1, Glass in building - Basic alumino silicate glass products - Part 1: Definitions and general
physical and mechanical properties
EN 15682-1, Glass in building - Heat soaked thermally toughened alkaline earth silicate safety glass - Part
1: Definition and description
EN 15683-1, Glass in building - Thermally toughened soda lime silicate channel shaped safety glass - Part
1: Definition and description
EN 15755-1, Glass in building - Adhesive backed polymeric filmed glass - Part 1: Definitions and
requirements
EN 15804:2012+A1:2013, Sustainability of construction works - Environmental product declarations -
Core rules for the product category of construction products
EN 16477-1, Glass in building - Painted glass for internal use - Part 1: Requirements
EN ISO 12543-1, Glass in building - Laminated glass and laminated safety glass - Part 1: Definitions and
description of component parts (ISO 12543-1)
EN ISO 12543-2, Glass in building - Laminated glass and laminated safety glass - Part 2: Laminated safety
glass (ISO 12543-2)
EN ISO 12543-3, Glass in building - Laminated glass and laminated safety glass - Part 3: Laminated glass
(ISO 12543-3)
EN ISO 14025, Environmental labels and declarations - Type III environmental declarations - Principles
and procedures (ISO 14025)
ISO 21930, Sustainability in buildings and civil engineering works - Environmental declaration of building
products
6
---------------------- Page: 8 ----------------------
oSIST prEN 17074:2017
prEN 17074:2017 (E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 15804 and the following apply.
3.1
by-product
substance or object resulting from a production process and meeting the following conditions:
(a) further use is certain;
(b) it can be used directly without any further processing other than normal industrial practice;
(c) it is produced as an integral part of a production process; and
(d) further use is lawful
(SOURCE: DIRECTIVE 2008/98/EC, Article 5)
3.2
end-of-waste status
certain specified waste shall cease to be waste when it has undergone a recovery, including recycling,
operation and complies with specific criteria developed in accordance with the following conditions:
(a) it is commonly used for specific purposes;
(b) a market or demand exists;
(c) it fulfils the technical requirements for the specific purposes and meets the existing legislation and
standards applicable to products; and
(d) the use will not lead to overall adverse environmental or human health impacts
(SOURCE: DIRECTIVE 2008/98/EC, Article 6)
Note 1 to entry: Criteria for determining when glass cullet destined for the production of glass substances or
objects in re-melting processes ceases to be waste are established by the Commission Regulation No 1179/2012.
3.3
internal cullet
composed of defective products detected and rejected by a quality control process during the industrial
process of glass manufacturing, transition phases of product changes (such as thickness and/or colour
changes) and production offcuts
Note 1 to entry: These materials are immediately absorbed by the respective industrial process as a raw
material for a new melting operation, not leaving the glass manufacturing plant. Internal cullet cannot be
considered as waste as it was never a product.
(SOURCE: JRC-IPTS Working document – EoW criteria for waste glass)
3.4
external cullet
waste glass that is collected and/or reprocessed with the purpose of recycling
Note 1 to entry: External cullet can be of two types, pre-consumer, also called post-industrial glass cullet, and
post-consumer glass cullet. (SOURCE: JRC-IPTS Working document – EoW criteria for waste glass)
7
---------------------- Page: 9 ----------------------
oSIST prEN 17074:2017
prEN 17074:2017 (E)
3.5
pre-consumer cullet
waste glass resulting from the manufacturing of products that contain glass as one of their components,
and which leaves the specific facility where it was generated but not reaching the consumer market
Note 1 to entry: An example of pre-consumer cullet is the glass cullet constituted by off cuts of the production of
windows which leave the processing facility and are re-melted in the flat glass manufacturing facility.
Note 2 to entry: Pre-consumer cullet if sorted properly fulfils the cullet specifications of the flat glass
manufacturers and can be directly sent back to the furnace without additional treatment.
(SOURCE:JRC-IPTS Working document – EoW criteria for waste glass)
3.6
post-consumer cullet
waste glass originated after the use of the glass products at the consumer market
(SOURCE:JRC-IPTS Working document – EoW criteria for waste glass)
3.7
similar product
product covered by this PCR produced by the same company using the same production process
4 Products covered/ Products category
4.1 General
Glass is used in a variety of construction applications to provide a transparent, impermeable barrier,
which may have additional insulating, solar control, security, noise reduction or decorative properties.
Glass is also used as a base component for other technologies such as photovoltaic cells, which may be
incorporated in construction works.
These Product Category Rules (PCR) are applicable to the production of flat glass for use in buildings
such as:
a) basic glass products according to EN 572-1:
• float glass according to EN 572-2;
• polished wired glass according to EN 572-3;
• drawn sheet glass according to EN 572-4;
• patterned glass according to EN 572-5;
• wired patterned glass according to EN 572-6;
• wired or unwired channel-shaped according to EN 572-7;
b) special basic glass products:
• borosilicate glass according to EN 1748-1-1;
• glass ceramics according to EN 1748-2-1;
• alkaline earth silicate glass according to EN 14178-1;
8
---------------------- Page: 10 ----------------------
oSIST prEN 17074:2017
prEN 17074:2017 (E)
• alumina silicate according to EN 15681-1;
c) processed glasses:
• heat strengthened soda lime silicate glass according to EN 1863-1;
• thermally toughened soda lime silicate safety glass according to EN 12150-1;
• heat soaked thermally toughened soda lime silicate safety glass according to EN 14179-1;
• chemically strengthened soda lime silicate glass according to EN 12337-1;
• thermally toughened borosilicate safety glass according to EN 13024-1;
• thermally toughened alkaline earth silicate safety glass according to EN 14321-1;
• heat soaked thermally toughened alkaline earth silicate safety glass according to EN 15682-1;
• thermally toughened soda lime silicate channel shaped safety glass according to EN 15683-1,
laminated glass and laminated safety glass according to EN ISO 12543-1, EN ISO 12543-2 and
EN ISO 12543-3;
• insulating glass unit according to EN 1279-1;
• coated glass according to EN 1096-1;
• mirror form silvered coated glass for interior use according to EN 1036-1;
• painted glass according to EN 16477-1;
• adhesive back polymeric filmed glass according to EN 15755-1;
• surface worked glass (e.g. sand blasted, acid etched);
• any combination of the above.
NOTE The above list of products is not exhaustive. The PCR can also apply to other glass products not listed
above.
4.2 Inclusion of several products in the same EPD
Similar products can be presented in the same EPD but using different tables. A set of indicators and
technical information per product shall be included.
5 Comparability of EPDs
Comparison of EPDs of products used in buildings should consider the complete life cycle (cradle to
grave EPDs) as it should be based on the product’s use and its impacts on the building (EN 15804).
For comparison of EPDs of glass products used in buildings (comparisons at sub-building level), the
requirements of comparability set out in EN 15804 and EN ISO 14025 shall be met.
Comparison of EPDs is not a simple and direct process. It requires the assurance of comparable
conditions and assumptions to avoid inaccurate conclusions. Functional requirements, as well as
technical and environmental characteristics and conditions must be the same.
9
---------------------- Page: 11 ----------------------
oSIST prEN 17074:2017
prEN 17074:2017 (E)
6 Date of publication
Conditions of EN 15804 apply.
7 PCR review
Conditions of EN 15804 apply.
8 Expiration date
Conditions of EN 15804 apply.
9 Product category rules for LCA
9.1 General
A Life Cycle Analysis (LCA) shall be performed, conforming to this PCR, in order to identify the
environmental impacts of each life cycle phase of the product.
The scope of the LCA shall include a description of the following according to this PCR:
• Functional unit;
• Reference Service Life;
• System boundaries;
• Criteria for the exclusion of inputs and outputs (cut-off rules);
• Selection of data and data quality requirements.
9.2 Functional unit
2
For each of the glass products listed in point 4, the functional unit is 1 square metre (1 m ) of the
respective product. The thickness and configuration of the glass products must be specified in the
studies.
Technical characteristics such as Transmittance, Reflectance, U-value, g-value, acoustics and safety
classification should be declared in the studies (see relevant European Standards).
9.3 Reference Service Life
As a reference, a service life of 30 years shall be used, unless otherwise indicated in product standard or
specified by the manufacturer for specific in-use conditions.
(SOURCE: Bundesinstitut für Bau-, Stadt- und Raumforschung (BBSR).
9.4 System boundaries
The system boundaries define the unit processes that are included in the product system.
The system boundaries of the EPD shall be described appropriately: cradle to gate, cradle to gate - with
options, cradle to grave], etc. It should be apparent as to what processes are considered in what
modules.
The system boundaries covered by these rules include all life cycle stages, i.e. product stage,
construction stage, use stage and end-of-life stage. The relevant modules included in each life cycle
stage are illustrated in Table 1.
10
---------------------- Page: 12 ----------------------
oSIST prEN 17074:2017
prEN 17074:2017 (E)
Table 1 — Life cycle stages and modules covered in the context of this PCR
Beyond
CONSTRUCTION
PRODUCT STAGE USE STAGE END-OF-LIFE STAGE Product
STAGE
System
A1 A2 A3 A4 A5 B1 B2 B3 B4 B5 B6 B7 C1 C2 C3 C4 D
✓ ✓ ✓ ✓ ✗ ✗ ✓ ✓ ✓ ✓ ✗ ✗ ✓ ✓ ✓ ✓ ✓
Module A3 of the product stage includes the manufacturing of flat glass and, in case it applies, the glass
processing into different transformed glass products.
In module A5 the ancillary elements to install the glass/ glass products in the building are not taken into
account because there are many different considerations related to the installation in the building
(depending on the type of building, frame materials, etc.). Thus, the ancillary elements will be
considered in the scenarios established under the Environmental Product Declaration of the window/
façade systems.
Flows related to human activities such as lighting, heating, cleaning of workshops, administration and
employee transport are excluded from the system boundaries.
The production of plants, machines and transportation systems is also excluded since the related flows
are assumed to be negligible, compared to the production of glass products when the comparison is
done at the timescale of the reference service life of plants, machines or transportation systems.
Neither ISO 21930 nor EN 15804 include in the impact assessment the potential positive environmental
impacts of the building, during its use phase, if they are due to the use of construction products with
certain characteristics (like energy savings due to a better insulation or solar gains in the building when
glass products are in use).
Since these standards have not considered these benefits in the system boundaries, they shall not be
included in the calculations of the results presented in the EPD. However, the calculation of the
environment benefits, such as energy savings in the use phase should be presented as ‘additional
information’ in the EPD. To calculate the energy benefits during the use phase of glass products, the
methodology applicable in framework of the ‘energy labelling of windows’ should be used.
11
Raw Material supply
(extraction, processing, recycled
material)
Transport to manufacturer
Manufacture
Transport to building site
Installation in building
Use/ application
Maintenance
Repair
Replacement
Refurbishment
Operational energy use
Operational water use
Deconstruction/ demolition
Transport to end-of-life
Waste processing for reuse,
recovery or recycling
Disposal
Reuse, recovery or recycling
potential
---------------------- Page: 13 ----------------------
oSIST prEN 17074:2017
prEN 17074:2017 (E)
Figure 1 — System Boundaries
9.5 Criteria for the exclusion of inputs and outputs (cut-off rules)
In the life cycle assessment, all significant parameters from production data shall be included, i.e. all
raw material used per formulation, utilised thermal energy, internal fuel and electric power
consumption, direct production of waste and all available emission measurements.
According to EN 15804, mass flows representing less than 1 % of the total mass input and/or energy
flows representing less than 1% of the total primary energy usage of the associated unit process may be
omitted. Cumulative omitted mass and energy usage shall not exceed 5 % per module (i.e. per module A,
B, C or D).
Substances of Very High Concern (SVHC) i.e. substances meeting the criteria in Article 57 and identified
in accordance with Article 59(1) of REACH Regulation (EC) N°1907/2006, in a concentration above
0.1 % by weight of the glass final product, shall be included in the Life Cycle Inventory and the cut-off
rules shall not apply.
9.6 Selection of data and data quality
Selection of data and data quality requirements shall follow rules specified in EN 15804.
1) 2)
As a general rule, manufacturer’s average data or specific data derived from specific production
processes shall be the first choice as a basis for the LCA and EPD calculations.
This type of data is required for at least the processes the producer of the glass products has influence
over. In the case of this PCR, it means for flat glass manufacturing (module A3) and processing (module
A’3).
Table 2 — Application of generic and specific data
MODULE A1-A3 A4 and A5 B1-B7 C1-C4
MODULES Production of
Product Installation End-of-life
commodities,
Use processes
manufacture processes processes
raw materials
Processes the
Upstream manufacturer
Process type Downstream processes
processes has influence
over
Manufacturer’s
Data type Generic data average or Generic data
specific data
1) Average data – data representative of a product or product group provided by more than one supplier.
2) Specific data – data representative of a product or product group provided by one supplier.
12
---------------------- Page: 14 ----------------------
oSIST prEN 17074:2017
prEN 17074:2017 (E)
Generic data can be used in modules A1 and A’1 (pr
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.