prEN 17074

SLOVENSKI STANDARD
01-julij-2025
Trajnost gradbenih del - Okoljske deklaracije za proizvode - Pravila za kategorije
proizvodov iz ravnega in profiliranega stekla
Sustainability of construction works - Environmental product declarations - Product
Category Rules for flat glass and channel shaped glass products
Nachhaltigkeit von Bauwerken - Umweltproduktdeklarationen - Produktkategorieregeln
für Flachglas und rinnenförmige Glasprodukte
Verre dans la construction - Déclarations environnementales de produits - Règles de
catégories de produits complémentaires à la norme EN 15804 pour les produits en verre
plat et en verre profilé
Ta slovenski standard je istoveten z: prEN 17074
ICS:
13.020.50 Označevanje z ekološko Ecolabelling
nalepko
81.040.20 Steklo v gradbeništvu Glass in building
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2025
ICS 13.020.50; 81.040.20 Will supersede EN 17074:2019
English Version
Sustainability of construction works - Environmental
product declarations - Product Category Rules for flat glass
and channel shaped glass products
Verre dans la construction - Déclarations Nachhaltigkeit von Bauwerken -
environnementales de produits - Règles de catégories Umweltproduktdeklarationen -
de produits complémentaires à la norme EN 15804 Produktkategorieregeln für Flachglas und
pour les produits en verre plat et en verre profilé rinnenförmige Glasprodukte
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, 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, Türkiye 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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17074:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Abbreviations . 7
5 General aspects . 8
5.1 Objective of the Core PCR . 8
5.2 Types of EPD with respect to life cycle stages covered . 8
5.3 Comparability of EPD for construction products . 8
5.4 Additional environmental information . 8
5.4.1 General. 8
5.4.2 Additional impact indicators . 8
5.4.3 Additional information on carbon offset, carbon storage and delayed emission . 8
5.4.4 Additional information not derived from LCA . 8
5.5 Ownership, responsibility and liability for the EPD. 8
5.6 Communication formats . 8
6 Product Category Rules for LCA . 9
6.1 Product category . 9
6.2 Life cycle stages and their information modules to be included . 10
6.3 Calculation rules for the LCA . 10
6.3.1 Functional or declared unit . 10
6.3.2 Functional unit . 10
6.3.3 Declared unit . 10
6.3.4 Reference service life (RSL) . 11
6.3.5 System boundaries . 11
6.3.6 Criteria for the exclusion of inputs and outputs . 17
6.3.7 Selection of data . 17
6.3.8 Data quality . 17
6.3.9 Developing product level scenarios . 17
6.3.10 Units . 17
6.4 Inventory analysis . 18
6.4.1 Collecting data . 18
6.4.2 Calculation procedures . 18
6.4.3 Allocation of input flows and output emissions . 18
6.4.4 Information on biogenic carbon content . 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
7.3 Scenarios and additional technical information . 19
7.4 Additional information on release of dangerous substances to indoor air, soil and water
during the use stage . 20
8 Project report . 20
9 Verification and validity of an EPD. 20
Annex A (normative) Requirements and guidance on the reference service life . 21
Annex B (informative) Waste . 22
Annex C (normative) Impact categories and related indicators, methodologies and
characterization factors (CF) . 23
Annex D (informative) End of life formulae . 24
Annex E (informative) Schemes to be applied for data quality assessment of generic and specific
data . 25
Annex F (informative) Manufacturing process of basic glass products . 26
F.1 Manufacturing process of float glass . 26
F.2 Manufacturing process of rolled glass . 27
Annex G (normative) Application rules for cullet . 28
G.1 Reminder of the allocation procedures according to EN 15804 . 28
G.2 Rules applicable to different cullet types in EPD . 28
G.2.1 Furnace process cullet . 28
G.2.2 Pre-consumer cullet . 29
G.2.3 Post-consumer cullet . 31
Annex H (informative) Glass product specifications . 32
Bibliography . 34

European foreword
This document (prEN 17074:2025) 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 will supersede EN 17074:2019.
significant technical changes with respect to EN 17074:2019:
— clearer definitions of different cullet types and modification of their names;
— removal of product stages A’1, A’2 and A’3;
— introduction of declared unit;
— inclusion of the reference to EN 17416:2021;
— clearer guideline for module D;
— clearer application rules for different cullet types;
— introduction of allocation rules (co-product allocation and allocation procedure for reuse, recycling
and recovery);
— clarification of the product information in the EPD;
— exclusion of glass blocks from the scope of this version of the standard.

1 Scope
This document provides complementary product category rules (c-PCR) for Type III environmental
product declarations (EPD) for flat glass and channel shaped glass products for use in buildings and
construction works. It describes stages of product’s life cycle considered in the EPD and the processes
included in life cycle stages.
For glass products covered by a European standard, the description, physical properties and useful
technical details that can be relevant for EPD are described in Annex H.
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-
...