SIST EN 479:2018

Plastics - Poly(vinyl chloride) (PVC) based profiles - Determination of heat reversion

This European Standard specifies a method for determining the heat reversion of unplasticized poly(vinyl chloride) (PVC-U) profiles at 100 °C in air.
It is also applicable to PVC-based profiles at specified temperatures/other test conditions.

Profile aus weichmacherfreiem Polyvinylchlorid (PVC-U) - Bestimmung des Wärmeschrumpfes

Diese Europäische Norm legt ein Verfahren zur Bestimmung des Wärmeschrumpfes bei 100 °C an der Luft für Profile aus weichmacherfreiem Polyvinylchlorid (PVC U) fest.
Sie ist auch für Profile auf Basis von PVC bei vorgegebenen Temperaturen/Prüfbedingungen anwendbar.

Profilés de poly(chlorure de vinyle) non plastifié (PVC-U) - Détermination du retrait à chaud

Le présent document spécifie une méthode de détermination du retrait à chaud des profilés en poly(chlorure de vinyle) non plastifié (PVC-U), à une température de 100 °C dans l’air.
Elle s’applique également aux profilés à base de PVC à des températures spécifiées/dans d’autres conditions d’essai.

Polimerni materiali - Profili na osnovi polivinilklorida (PVC) - Ugotavljanje preostale deformacije po toplotni obremenitvi

Ta evropski standard določa metodo za ugotavljanje toplotne obremenitve neprevlečenih profilov iz trdega polivinilklorida (PVC-U) na zraku pri 100 °C.
Uporablja se tudi za profile na osnovi PVC pri določenih temperaturah/drugih preskusnih pogojih.

General Information

• Status: Published
• Public Enquiry End Date: 31-Jan-2017
• Publication Date: 13-Feb-2018
• ICS: 83.140.99 - Other rubber and plastics products
• Technical Committee: IPMA - Polimer materials and products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 09-Feb-2018
• Due Date: 16-Apr-2018
• Completion Date: 14-Feb-2018
• Directive: Harmonized Standard305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Ref Project: EN 479:2018 - Plastics - Poly(vinyl chloride) (PVC) based profiles - Determination of heat reversion

Relations

• Replaces: SIST EN 479:2000 - Unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors - Determination of heat reversion
• Effective Date: 07-Feb-2018
• Referred By: SIST EN 13245-3:2010 - Plastics - Unplasticized poly(vinyl chloride) (PVC-U) profiles for building applications - Part 3: Designation of PVC-UE profiles
• Effective Date: 28-Jan-2026
• Referred By: SIST 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: 28-Jan-2026
• Referred By: SIST EN 13245-1:2010 - Plastics - Unplasticized poly(vinyl chloride) (PVC-U) profiles for building applications - Part 1: Designation of PVC-U profiles
• Effective Date: 28-Jan-2026
• Referred By: SIST 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: 28-Jan-2026
• Referred By: SIST EN 15534-1:2014+A1:2018 - Composites made from cellulose-based materials and thermoplastics (usually called wood-polymer composites (WPC) or natural fibre composites (NFC)) - Part 1: Test methods for characterisation of compounds and products
• Effective Date: 28-Jan-2026
• Referred By: SIST 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: 28-Jan-2026
• Referred By: SIST EN 13245-3:2026 - Plastics - Unplasticized poly(vinyl chloride) (PVC-U) profiles for building applications - Part 3: Designation of PVC-UE profiles
• Effective Date: 28-Jan-2026
• Referred By: SIST-TS CEN/TS 15534-3:2007 - Wood-plastics composites (WPC) - Part 3: Characterisation of WPC products
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 15534-1:2014 - Composites made from cellulose-based materials and thermoplastics (usually called wood-polymer composites (WPC) or natural fibre composites (NFC)) - Part 1: Test methods for characterisation of compounds and products
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 13245-1:2026 - Plastics - Unplasticized poly(vinyl chloride) (PVC-U) profiles for building applications - Part 1: Designation of PVC-U profiles
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 12608:2003 - Unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors - Classification, requirements and test methods
• Effective Date: 28-Jan-2026
• Referred By: SIST-TS CEN/TS 15534-1:2007 - Wood-plastics composites (WPC) - Part 1: Test methods for characterisation of WPC materials and products
• Effective Date: 28-Jan-2026
• Revised: SIST EN 479:2000 - Unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors - Determination of heat reversion
• Effective Date: 18-Nov-2015

Overview

SIST EN 479:2018 is a European Standard developed by CEN (European Committee for Standardization) that specifies a test method for determining the heat reversion of poly(vinyl chloride) (PVC)-based profiles, with an emphasis on unplasticized PVC (PVC-U) profiles. The standard defines procedures for assessing dimensional changes in PVC profiles after exposure to elevated temperatures, specifically 100 °C in air. This approach ensures consistency and reliability in evaluating the thermal stability and long-term performance of PVC profiles used in various sectors.

Keywords: SIST EN 479:2018, heat reversion, PVC profiles, poly(vinyl chloride), plastics testing, PVC-U, thermal stability, dimensional change, CEN standard

Key Topics

• Scope of Application

  • Applies to unplasticized PVC (PVC-U) profiles.
  • Can be extended to other PVC-based profiles at specified temperatures and conditions.

• Principle of the Test Method

  • Test specimens are heated in a controlled air oven at 100 °C for one hour.
  • Dimensional measurements are taken before and after heating to calculate heat reversion.

• Test Apparatus

  • Thermostatically controlled air oven with forced air circulation.
  • High-precision measuring devices (accuracy of 0.1 mm).

• Specimen Preparation and Conditioning

  • Minimum specimen length: 250 mm.
  • Test specimens must be conditioned at room temperature (typically 23 ± 2 °C in cases of dispute).

• Procedural Steps

  • Mark specimens at two points, 200 mm apart.
  • Measure initial length, heat the samples, cool them, and re-measure.
  • Calculate heat reversion as the percentage change in length.

• Reporting Requirements

  • Comprehensive documentation, including reference to EN 479, specimen ID, test dates, and all measurements and calculations.

Applications

SIST EN 479:2018 is vital for quality control and compliance in industries utilizing PVC-based profiles, including:

• Construction and Building Materials
  • Windows, doors, and other structural profiles require reliable thermal performance to maintain fit and durability over time.
• Manufacturing and Quality Assurance
  • Producers rely on standardized heat reversion testing to ensure batch consistency and adherence to performance specifications for PVC profiles.
• Product Development and Certification
  • New or modified formulations of PVC profiles can be benchmarked for heat reversion to meet regulatory and customer requirements.
• Compliance and Regulatory Testing
  • Meeting the requirements of SIST EN 479:2018 is essential for CE marking and other regulatory certifications in Europe.

Adopting this standard helps manufacturers prevent failures due to excessive dimensional changes and provides customers with confidence in the stability of PVC-based products.

Related Standards

• EN 13245 - Plastics - Unplasticized poly(vinyl chloride) (PVC-U) profiles - Specifications for solid and hollow profiles
• EN 12608 - Unplasticized PVC (PVC-U) profiles for the fabrication of windows and doors - Classification, requirements and test methods
• ISO 1163 - Plastics - Unplasticized poly(vinyl chloride) (PVC-U) compounds - Requirements and test methods

By referencing SIST EN 479:2018 alongside these related standards, stakeholders can comprehensively assess and specify the properties and performance of PVC profiles for both general and specialized applications.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2018
1DGRPHãþD
SIST EN 479:2000
Polimerni materiali - Profili na osnovi polivinilklorida (PVC) - Ugotavljanje
preostale deformacije po toplotni obremenitvi
Plastics - Poly(vinyl chloride) (PVC) based profiles - Determination of heat reversion
Profile aus weichmacherfreiem Polyvinylchlorid (PVC-U) - Bestimmung des
Wärmeschrumpfes
Profilés de poly(chlorure de vinyle) non plastifié (PVC-U) - Détermination du retrait à
chaud
Ta slovenski standard je istoveten z: EN 479:2018
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 479
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2018
EUROPÄISCHE NORM
ICS 83.080.20; 83.140.99 Supersedes EN 479:1995
English Version
Plastics - Poly(vinyl chloride) (PVC) based profiles -
Determination of heat reversion
Plastiques - Profilés à base de poly(chlorure de vinyle) Kunststoffe - Profile auf Basis von Polyvinylchlorid
(PVC) - Détermination du retrait à chaud (PVC) - Bestimmung des Wärmeschrumpfes
This European Standard was approved by CEN on 6 December 2017.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 479:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 4
5 Apparatus . 4
6 Test specimens . 4
7 Conditioning . 4
8 Procedure. 5
9 Expression of results . 5
10 Test report . 5

European foreword
This document (EN 479:2018) has been prepared by Technical Committee CEN/TC 249 “Plastics”, 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 July 2018, and conflicting national standards shall be
withdrawn at t
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