Wood-plastics composites (WPC) - Part 2: Characterisation of WPC materials

This Technical Specification identifies the required and optional properties of wood-plastics composite (WPC) materials. It is intended to be used as a basis for the specifications of WPC materials.

Holz-Polymer-Werkstoffe (WPC) - Teil 2: Beschreibung von WPC-Werkstoffen

Diese Technische Spezifikation legt die geforderten und wahlfreien Eigenschaften von Holz-Polymer-Werk¬stoffen (WPC) fest und ist als Grundlage für die Spezifikationen von WPC-Werkstoffen vorgesehen.

Composites bois-plastiques (WPC) - Partie 2 : Caractérisation des matériaux WPC

La présente Spécification technique identifie les propriétés requises et facultatives des matériaux en
composites bois-plastiques (WPC). Elle est destinée à servir de base aux spécifications des matériaux WPC.

Lesno-polimerni kompoziti (WPC) - 2. del: Karakterizacija WPC materialov

General Information

Status
Published
Publication Date
03-Jul-2007
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
27-Jun-2007
Due Date
01-Sep-2007
Completion Date
04-Jul-2007

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SIST-TS CEN/TS 15534-2:2007

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Overview

SIST-TS CEN/TS 15534-2:2007 establishes a unified approach for the characterisation of wood-plastic composites (WPC) materials. Developed by the Slovenian Institute for Standardization (SIST) and harmonized with the CEN technical specification, this document outlines both required and optional properties necessary for defining WPC materials. The standard serves as a framework for developing consistent technical specifications, promoting material reliability, and ensuring compatibility across manufacturers and applications.

Wood-plastic composites combine the durability of wood fibers with the versatility of plastics, making them increasingly popular for construction, outdoor decking, cladding, and various industrial uses. This standard enhances transparency and comparability by specifying how the key characteristics of WPC materials should be measured and reported.

Key Topics

  • Required WPC Material Properties: The standard identifies specific properties that must be characterized for internal and external use, including:

    • Density
    • Heat deflection temperature (HDT)
    • Flexural properties (modulus, stress, strain)
    • Swelling and water absorption
  • Optional Properties: Depending on customer needs and application requirements, additional characteristics may be assessed, such as:

    • Moisture content
    • Charpy impact strength
    • Tensile properties (strength, strain at break, Young’s modulus)
    • Creep behaviour
    • Resistance to indentation (Brinell hardness)
    • Biological durability (resistance to termites, basidiomycetes, soft rotting micro-fungi, discolouring fungi and algae)
    • Linear thermal expansion
    • Limit oxygen index (flammability)
  • Test Methods and Technical Data Sheets: The standard references established European and international test methods (e.g., EN ISO, EN, ISO) and requires the supplier to provide a technical data sheet containing actual test results and declared tolerances for each property.

Applications

The characterisation defined in SIST-TS CEN/TS 15534-2:2007 ensures that wood-plastic composite materials can be specified and selected with confidence for a variety of applications, including:

  • Building and Construction:
    • External cladding
    • Decking and flooring
    • Fencing and railings
  • Outdoor Furniture and Landscaping:
    • Benches, playgrounds, garden architecture
  • Industrial Components:
    • Machine housing, warehouses, transport pallets
  • Interior Applications:
    • Decorative wall panels, furniture components

Through clear and standardized characterisation, project designers, engineers, and procurement professionals can compare material performance, specify products accurately, and meet regulatory or sustainability criteria more easily.

Related Standards

To ensure comprehensive assessment and compatibility, SIST-TS CEN/TS 15534-2:2007 references and aligns with several important standards, including:

  • SIST-TS CEN/TS 15534-1: Test methods for characterisation of WPC materials and products
  • EN ISO 178: Determination of flexural properties of plastics
  • EN ISO 1183 series: Plastics density measurement methods
  • EN 317: Swelling in thickness after immersion for wood-based boards
  • EN ISO 75 series: Heat deflection temperature tests
  • EN ISO 527 series: Determination of tensile properties
  • EN 1534: Brinell hardness
  • EN 117 and ENV 12038: Biological resistance testing (termites, fungi)
  • ISO 16979: Moisture content determination in wood-based panels

These standards collectively enable robust assessment of wood-plastic composites for both indoor and outdoor applications, facilitating informed material selection and supporting quality assurance throughout supply chains.

By following SIST-TS CEN/TS 15534-2:2007, stakeholders ensure that WPC materials are fit for purpose, compliant with industry requirements, and supported by transparent, comparable data.

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Frequently Asked Questions

SIST-TS CEN/TS 15534-2:2007 is a technical specification published by the Slovenian Institute for Standardization (SIST). Its full title is "Wood-plastics composites (WPC) - Part 2: Characterisation of WPC materials". This standard covers: This Technical Specification identifies the required and optional properties of wood-plastics composite (WPC) materials. It is intended to be used as a basis for the specifications of WPC materials.

This Technical Specification identifies the required and optional properties of wood-plastics composite (WPC) materials. It is intended to be used as a basis for the specifications of WPC materials.

SIST-TS CEN/TS 15534-2:2007 is classified under the following ICS (International Classification for Standards) categories: 79.060.01 - Wood-based panels in general. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST-TS CEN/TS 15534-2:2007 has the following relationships with other standards: It is inter standard links to SIST EN ISO 179-1:2026, SIST EN ISO 4589-2:2017, SIST EN ISO 75-1:2020, SIST EN ISO 527-1:2019, SIST EN ISO 1183-3:2000, SIST EN ISO 75-2:2013, SIST EN 317:1996, SIST EN ISO 527-2:2025, SIST EN ISO 899-2:2024, SIST-TP CEN ISO/TR 3834-6:2007, SIST EN 113-3:2023, SIST EN ISO 11148-1:2012, SIST-TS CEN/TS 15534-1:2007, SIST EN ISO 12781-2:2011, SIST-TS CEN/TS 15083-2:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST-TS CEN/TS 15534-2:2007 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
01-september-2007
Lesno-polimerni kompoziti (WPC) - 2. del: Karakterizacija WPC materialov
Wood-plastics composites (WPC) - Part 2: Characterisation of WPC materials
Holz-Polymer-Werkstoffe (WPC) - Teil 2: Beschreibung von WPC-Werkstoffen
Composites bois-plastiques (WPC) - Partie 2 : Caractérisation des matériaux WPC
Ta slovenski standard je istoveten z: CEN/TS 15534-2:2007
ICS:
79.060.01 /HVQHSORãþHQDVSORãQR Wood-based panels in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CEN/TS 15534-2
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
May 2007
ICS 79.060.01
English Version
Wood-plastics composites (WPC) - Part 2: Characterisation of
WPC materials
Composites bois-plastiques (WPC) - Partie 2 : Holz-Kunststoff-Verbundstoffe (WPC) - Teil 2:
Caractérisation des matériaux WPC Beschreibung von WPC-Werkstoffen
This Technical Specification (CEN/TS) was approved by CEN on 29 December 2006 for provisional application.
The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.
CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 15534-2:2007: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Characterisation of WPC materials.5
Annex A (informative) Technical data templates .7

Foreword
This document (CEN/TS 15534-2:2007) has been prepared by Technical Committee CEN/TC 249 “Plastics”,
the secretariat of which is held by NBN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
CEN/TS 15534 consists of the following parts, under the general title Wood plastics composites (WPC):
 Part 1: Test methods for characterisation of WPC materials and products
 Part 2: Characterisation of WPC materials
 Part 3: Characterisation of WPC products
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

1 Scope
This Technical Specification identifies the required and optional properties of wood-plastics composite (WPC)
materials. It is intended to be used as a basis for the specifications of WPC materials.
2 Normative references
The following referenced documents are indispensable for the application 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 117, Wood preservatives — Determination of toxic values against Reticulitermes species (European
termites) (laboratory method)
EN 317, Particleboards and fibreboards — Determination of swelling in thickness after immersion in water
EN 1534, Wood and parquet flooring — Determination of resistance to indentation (Brinell) — Test method
ENV 12038, Durability of wood and wood-based products — Wood-based panels — Method of test for
determining the resistance against wood-destroying basidiomycetes
CEN/TS 15083-2, Durability of wood and wood-based products — Determination of the natural durability of
solid wood against wood-destroying fungi, test methods — Part 2: Soft rotting micro-fungi
prEN 15458, Paints and varnishes — Laboratory method for testing the efficacy of film preservatives in a
coating against algae
CEN/TS 15534-1:2007, Wood-plastics composites (WPC) — Part 1: Test methods for characterisation of
WPC materials and products
EN ISO 75-1, Plastics — Determination of temperature of deflection under load — Part 1: General test method
(ISO 75-1:2004)
EN ISO 75-2, Plastics — Determination of temperature of deflection under load — Part 2: Plastics, ebonite
and long-fibre-reinforced composites (ISO 75-2:2004)
EN ISO 178, Plastics — Determination of flexural properties (ISO 178:2001)
EN ISO 179-1, Plastics — Determination of Charpy impact properties — Part 1: Non-instrumented impact test
(ISO 179-1:2000)
EN ISO 527-1, Plastics — Determination of tensile
...