EN 513:2026

• Abstract:

  This document specifies a method for exposing specimens made from poly(vinyl chloride) (PVC) based profiles to xenon-arc radiation, in order to assess changes in characteristics.; It is applicable to PVC based profiles including those covered with foil, paint, print, thermo-laminated foils or coextruded.; NOTE The determination of changes in colour and variations of properties after exposure of PVC based profiles to xenon-arc radiation is described in an informative Annex A.

• Status: Published
• Publication Date: 04-Aug-2026
• ICS: 83.140.99 - Other rubber and plastics products
• Technical Committee: CEN/TC 249 - Plastics
• Drafting Committee: CEN/TC 249/WG 21 - Profiles for windows and doors
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 05-Aug-2026
• Due Date: 24-Feb-2027
• Completion Date: 05-Aug-2026
• Ref Project: SIST EN 513:2026 - Plastics - Poly(vinyl chloride) (PVC) based profiles - Determination of the resistance to artificial weathering

• Replaces: EN 513:2018 - Plastics - Poly(vinyl chloride) (PVC) based profiles - Determination of the resistance to artificial weathering
• Effective Date: 11-Dec-2024
• Refers: EN ISO 4892-2:2013 - Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps (ISO 4892-2:2013)
• Effective Date: 02-Sep-2026
• Referred By: EN 12608-1:2016 - Unplasticized poly(vinyl chloride) (PVC-U) profiles for the fabrication of windows and doors - Classification, requirements and test methods - Part 1: Non-coated PVC-U profiles with light coloured surfaces
• Effective Date: 12-Aug-2026
• Referred By: EN 607:2023 - Eaves gutters and fittings made of PVC-U - Definitions, requirements and testing
• Effective Date: 12-Aug-2026
• Referred By: EN 12608:2003 - Unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors - Classification, requirements and test methods
• Effective Date: 12-Aug-2026
• Referred By: EN 607:2004 - Eaves gutters and fittings made of PVC-U - Definitions, requirements and testing
• Effective Date: 12-Aug-2026
• Referred By: EN 12608-2:2023 - Unplasticized poly(vinyl chloride) (PVC-U) profiles for the fabrication of windows and doors - Classification, requirements and test methods - Part 2: PVC-U profiles covered with foils bonded with adhesives
• Effective Date: 12-Aug-2026
• Referred By: EN 12608-1:2016+A1:2020 - Unplasticized poly(vinyl chloride) (PVC-U) profiles for the fabrication of windows and doors - Classification, requirements and test methods - Part 1: Non-coated PVC-U profiles with light coloured surfaces
• Effective Date: 12-Aug-2026
• Referred By: EN 13245-1:2025 - Plastics - Unplasticized poly(vinyl chloride) (PVC-U) profiles for building applications - Part 1: Designation of PVC-U profiles
• Effective Date: 12-Aug-2026
• Referred By: EN 14471:2005 - Chimneys - System chimneys with plastic flue liners - Requirements and test methods
• Effective Date: 12-Aug-2026
• Referred By: EN 26:2015 - Gas-fired instantaneous water heaters for the production of domestic hot water
• Effective Date: 12-Aug-2026
• Referred By: EN 89:2015 - Gas-fired storage water heaters for the production of domestic hot water
• Effective Date: 12-Aug-2026
• Referred By: EN 13245-3:2025 - Plastics - Unplasticized poly(vinyl chloride) (PVC-U) profiles for building applications - Part 3: Designation of PVC-UE profiles
• Effective Date: 12-Aug-2026

EN 513:2026 is a CEN European Standard for plastics, published for PVC based profiles. It specifies a xenon-arc artificial weathering method for exposing specimens so that changes in characteristics after exposure can be assessed. It is used for PVC based profiles, including profiles covered with foil, paint, print, thermo-laminated foils or coextruded layers.

What does EN 513:2026 specify?

EN 513:2026 specifies the laboratory exposure of specimens from poly(vinyl chloride) (PVC) based profiles to xenon-arc radiation. The purpose is to assess how the profile changes after controlled artificial weathering, especially for products intended for outdoor use.

The scope covers PVC based profiles with surface treatments and multilayer constructions such as foils, paint, print and coextrusions. Clause 7 and Clause 9 show that the referring product standard sets the number of specimens and the chosen exposure method, while Annex A gives related evaluation methods for colour and property changes.

Annex	What it covers
Annex A	Informative procedures for checking colour change and variations in properties after xenon-arc exposure

What are the key requirements of EN 513:2026?

EN 513:2026 sets a controlled exposure method, defined test conditions, and a reporting set that lets users compare results between products and laboratories. In practice, the standard is about keeping the exposure conditions fixed, then measuring how the exposed profile differs from the unexposed reference.

Exposure principle and apparatus

Specimens taken from the exposed surface of a profile are placed under xenon-arc radiation with specified irradiance, temperatures, relative humidity and a spray cycle. Clause 6 requires equipment that complies with the general laboratory weathering standards and uses an open-frame specimen holder so the back of the specimen remains exposed.

This matters because the back exposure and the controlled chamber conditions affect how the surface ages, so the test is only comparable when the setup matches the standard.

Weathering methods

Clause 9 provides two exposure methods: one for moderate climate and one for severe climate. The choice of method is made by the referring standard, which means the product specification decides how harsh the weathering simulation should be.

For users, this is the main selection step. A buyer, manufacturer or test lab must know which climate severity the product is being qualified against before starting the test.

Specimens, conditioning and exposure control

Clause 7 requires the test specimens to come from the surface exposed to UV radiation, with the specimen length aligned to the profile direction. The non-exposed reference specimens are stored in the dark.

Clause 8 says conditioning is normally not required before exposure, unless another standard says otherwise. Clause 10 requires the operator to verify the apparatus conditions before testing, monitor temperatures during exposure, record irradiance at intervals, stop the test when the specified radiant exposure is reached, and document any cleaning or other deviations.

Test reporting

Clause 11 lists the information that must be in the test report, including the exposure method, specimen identification, apparatus details, radiation source and filter system, specimen holder type, temperature settings, humidity, air temperature, radiant exposure, exposure time and any incidents that could have influenced the result.

That report is what makes the test traceable. It lets a quality manager or customer see exactly how the result was generated.

Informative follow-up evaluations

Annex A gives optional procedures for checking colour change and other property variations after exposure. It covers visual colour assessment, colorimetric coordinates, Charpy impact strength for PVC-U and PVC-UE profiles, tensile impact, flexural properties, chalking, coating adhesion, peel strength and falling weight impact resistance for PVC-UE profiles.

What terms does EN 513:2026 define?

EN 513:2026 uses these key terms and abbreviations:

• Radiant exposure - the time integral of irradiance, expressed as energy per unit area.
• PVC-U - unplasticized poly(vinyl chloride).
• PVC-UE - expanded unplasticized poly(vinyl chloride).
• BST - black-standard thermometer used to monitor specimen heating.
• WST - white-standard thermometer used to monitor the lighter reference temperature in the chamber.

Who uses EN 513:2026?

EN 513:2026 is used by laboratories, profile manufacturers, test engineers, quality managers and buyers who need to assess the weathering resistance of PVC based profiles. It is relevant to producers of profiles for windows, doors and other outdoor applications, especially when surface appearance, coating adhesion or impact performance after weathering must be checked.

It is also used when a product standard or customer specification needs a repeatable xenon-arc test for acceptance, comparison or quality control.

What changed in EN 513:2026 from the previous edition?

EN 513:2026 supersedes EN 513:2018. The European foreword states these significant technical changes:

• the specimen holder type, backed or open framed, is now included in the test report;
• EN ISO/CIE 11664-6 with CIEDE2000 was added as an alternative colour measurement method for uniform colours in Annex A.2.3;
• references were updated.

Which standards are used with EN 513:2026?

EN 513:2026 relies on EN ISO 472 for plastics vocabulary, EN ISO 4892-1 for general laboratory weathering guidance, EN ISO 4892-2 for xenon-arc lamp exposure, and ISO 9370 for radiant exposure measurement.

The document also points to EN 12608-1:2026 for choosing the weathering method, and Annex A uses related test methods for follow-up checks, including EN ISO 179-1, EN ISO 8256:2023, EN ISO 178, EN ISO 4628-6, EN ISO 2409, EN 17271 and EN 13245-2:2008.

What does the EN 513:2026 document contain?

EN 513:2026 contains a short technical core and one informative annex. The core covers scope, references, terms, symbols, principle, apparatus, specimen handling, conditioning, weathering conditions, procedure and reporting.

Table 1 sets the two exposure cycles for the two climate severities. Annex A then provides practical methods for evaluating the exposed profiles, including visual colour comparison, instrumental colour measurement, impact tests, flexural testing, chalking, coating adhesion, peel strength and falling weight impact resistance.

SLOVENSKI STANDARD
01-oktober-2026
Polimerni materiali - Profili na osnovi polivinilklorida (PVC) - Ugotavljanje
odpornosti proti vremenskim vplivom s pospešenim staranjem
Plastics - Poly(vinyl chloride) (PVC) based profiles - Determination of the resistance to
artificial weathering
Kunststoffe - Profile auf Basis von Polyvinylchlorid (PVC) - Bestimmung der
Beständigkeit gegenüber künstlicher Bewitterung
Plastiques - Profilés à base de poly(chlorure de vinyle) (PVC) - Détermination de la
résistance au vieillissement artificiel
Ta slovenski standard je istoveten z: EN 513:2026
ICS:
83.140.99 Drugi izdelki iz gume in Other rubber and plastics
polimernih materialov products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 513
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2026
EUROPÄISCHE NORM
ICS 83.140.99 Supersedes EN 513:2018
English Version
Plastics - Poly(vinyl chloride) (PVC) based profiles -
Determination of the resistance to artificial weathering
Plastiques - Profilés à base de poly(chlorure de vinyle) Kunststoffe - Profile auf Basis von Polyvinylchlorid
(PVC) - Détermination de la résistance au (PVC) - Bestimmung der Beständigkeit gegenüber
vieillissement artificiel künstlicher Bewitterung
This European Standard was approved by CEN on 5 July 2026.

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, Türkiye 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
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 513:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Symbols and abbreviations . 4
5 Principle . 5
6 Apparatus . 5
7 Test specimens . 5
8 Conditioning . 5
9 Weathering test conditions . 6
10 Procedure. 8
11 Test report . 8
Annex A (informative) Determination of changes in colour and variations of properties after
exposure to xenon-arc radiation . 10
A.1 General . 10
A.2 Determination of visual change in colour . 10
A.2.1 Test specimens . 10
A.2.2 Grey scale . 10
A.2.3 Determination of colorimetric coordinates . 10
A.3 Determination of Charpy impact strength . 11
A.3.1 PVC-U profiles . 11
A.3.2 PVC-UE profiles . 11
A.4 Determination of the tensile impact . 12
A.5 Determination of flexural properties . 12
A.6 Determination of chalking . 12
A.7 Determination of adhesion of a coating . 12
A.8 Determination of peel strength . 12
A.9 Determination of falling weight impact resistance (only applicable for PVC UE
profiles) . 13
Bibliography . 14

European foreword
This document (EN 513:2026) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the
secretariat of which is held by SIS.
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 February 2026, and conflicting national standards shall
be withdrawn at the latest by February 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 513:2018.
This document includes the following significant technical changes with respect to EN 513:2018:
— the type of specimen holder (backed or open framed) has been added to the test report;
— the colour measurement according to EN ISO/CIE 11664-6, calculating the CIEDE2000, has been
added as an alternative method for determining the colorimetric coordinates (for uniform colours
only) in A.2.3;
— references have been updated.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
1 Scope
This document specifies a method for exposing specimens made from poly(vinyl chloride) (PVC) based
profiles to xenon-arc radiation, in order to assess changes in characteristics.
It is applicable to PVC based profiles including those covered with foil, paint, print, thermo-laminated
foils or coextruded.
NOTE The determination of changes in colour and variations of properties after exposure of PVC based profiles
to xenon-arc radiation is described in an informative Annex A.
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 ISO 472, Plastics — Vocabulary (ISO 472)
EN ISO 4892-1:2024, Plastics — Methods of exposure to laboratory light sources — Part 1: General
guidance and requirements (ISO 4892-1:2024)
EN ISO 4892-2:2013, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps
(ISO 4892-2:2013)
ISO 9370:2017, Plastics — Instrumental determination of radiant exposure in weathering tests — General
guidance and basic test method
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 472 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
radiant exposure
H
time integral of irradiance
Note 1 to entry: measured in joules per square metre (J/m ).
[SOURCE: ISO 9370:2017, 3.27]
4 Symbols and abbreviations
For the purposes of this document, the following symbols and abbreviations apply.
PVC-U unplasticized poly(vinyl chloride)
PVC-UE expanded unplasticized poly(vinyl chloride)
BST black-standard thermometer
WST white-standard thermometer
5 Principle
Specimens taken from the surface of a profile, subjected to weathering in practice, shall be exposed to
xenon-arc radiation under specified conditions of irradiance, black and white standard temperatures,
relative humidity and spray cycle.
After the exposure, the changes in characteristics of the specimens are determined.
6 Apparatus
The apparatus shall comply with EN ISO 4892-1 and EN ISO 4892-2 and shall include:
a) a xenon-arc lamp in accordance with method A of EN ISO 4892-2:2013 with a spectral irradiance in
the band pass of 300 nm to 800 nm of (550 ± 55) W/m or a spectral irradiance in the band pass of
2 2
300 nm to 400 nm of (60 ± 2) W/m or a spectral irradiance at 340 nm of (0,51 ± 0,02) W/(m nm).
NOTE 1 In apparatuses with rotating specimen holders, the UV/(UV+VIS) irradiance ratio depends strongly
on the wavelength-dependent reflection behaviour of the specimens in the test chamber. This ratio is not
constant and varies with the reflective properties of the specimens.
NOTE 2 When comparing apparatuses controlled at different wavelength ranges, higher tolerances may be
accepted due to the conversion. Typical range is (550 ± 120) W/m for spectral irradiance in the band pass of
2 2
300 nm to 800 nm, (60 ± 12) W/m for the band pass of 300 nm to 400 nm and (0,51 ± 0,08) W/(m nm) for
spectral irradiance at 340 nm.
b) a black-standard thermometer (BST) in accordance with EN ISO 4892-1:2024, 5.2, and
EN ISO 4892-2:2013, 6.2.1, and a means of recording temperatures during one cycle;
c) a white-standard thermometer (WST) in accordance with EN ISO 4892-1:2024, 5.2, and
EN ISO 4892-2:2013, 6.2.1, and a means of recording temperatures during one cycle;
d) a device to determine the radiant exposures stated in a) according to ISO 9370;
e) specimen holders in the form of an open frame, leaving the back of the specimen exposed according
to EN ISO 4892-2:2013, 4.6.
7 Test specimens
The number of test specimens shall be as specified in the referring standard.
NOTE Additional details regarding test specimens for determining changes in colour and variations of
properties after exposure of PVC based profiles to xenon-arc radiation are given in Annex A.
The test specimens shall be taken from the surface of the profile exposed to UV radiation, ensuring that
the longitudinal direction of the test specimens corresponds to that of the profile.
The non-exposed reference test specimens shall be stored in the dark.
8 Conditioning
Unless otherwise specified, conditioning is not required before an exposure to laboratory radiation
sources.
NOTE Additional details regarding conditioning before determining changes in colour and variations of
properties after exposure of PVC based profiles to xenon-arc radiation are given in Annex A.
9 Weathering test conditions
Two different weathering test conditions of exposure are specified:
— method 1 for moderate clima
...