EN ISO 3303-2:2020

• Abstract:

  This document specifies a method for the determination of the bursting strength of rubber - or plastics - coated fabrics, using one of two types of diaphragm bursting tester, designated type A and B, both operated by hydraulic pressure.; The type A test machine is applicable to materials having bursting strengths ranging from 350 kPa to 5 500 kPa and the type B test machine is applicable to materials of bursting strengths ranging from 70 kPa to 1 400 kPa.

• Status: Published
• Publication Date: 08-Sep-2020
• Withdrawal Date: 30-Mar-2021
• ICS: 59.080.40 - Coated fabrics
• Technical Committee: CEN/TC 248 - Textiles and textile products
• Drafting Committee: CEN/TC 248/WG 4 - Coated fabrics
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 09-Sep-2020
• Completion Date: 09-Sep-2020
• Ref Project: SIST EN ISO 3303-2:2020 - Rubber- or plastics-coated fabrics - Determination of bursting strength - Part 2: Hydraulic method (ISO 3303-2:2020)

• Replaces: EN 12332-2:2002 - Rubber- or plastic-coated fabrics - Determination of bursting strength - Part 2: Hydraulic method
• Effective Date: 07-Oct-2020
• Refers: ISO 2231:1989 - Rubber- or plastics-coated fabrics — Standard atmospheres for conditioning and testing
• Effective Date: 25-Aug-2026
• Referred By: EN 15618:2022 - Rubber- or plastic-coated fabrics - Upholstery fabrics - Classification and methods of test
• Effective Date: 28-Jan-2026
• Consolidated By: ISO 3303-2:2020 - Rubber- or plastics-coated fabrics — Determination of bursting strength — Part 2: Hydraulic method
• Effective Date: 12-Feb-2026

Overview

EN ISO 3303-2:2020 / ISO 3303-2:2020 specifies a standardized hydraulic method for determining the bursting strength of rubber- or plastics-coated fabrics. The method uses an elastic diaphragm bursting tester (often called a Mullen burst tester) driven by hydraulic fluid to dome a diaphragm against a clamped test specimen until failure. Two machine types are defined: type A for higher strengths (350 kPa to 5 500 kPa) and type B for lower strengths (70 kPa to 1 400 kPa). The standard is published by CEN as a European adoption of the ISO document.

Key Topics

• Scope: Test procedure for coated fabrics using diaphragm (hydraulic) bursting testers.
• Tester types:
  • Type A - measurement range 350–5 500 kPa; clamped area ~10 cm² (35.7 mm bore); specific diaphragm bulge-pressure checks (e.g., 10.0 mm and 18.0 mm bulge height ranges).
  • Type B - measurement range 70–1 400 kPa (dimensions and clamping specified in standard).
• Apparatus & fluids: Hydraulic system driven by a motor piston; recommended fluids include pure glycerol, low-viscosity silicone oil, or ethylene glycol with corrosion inhibitor. Hydraulic system must be free of air bubbles.
• Operating parameters: Pumping rate for type A specified (170 ml/min ± 20 ml/min); clamping faces, concentricity and flatness tolerances defined.
• Preparation & conditioning: Conditioning and testing atmospheres follow referenced norms (e.g., ISO 2231). Wet test-piece preparation and test procedures are covered.
• Measurement outputs: Burst pressure and dome height at failure are recorded; results can be used as a multidirectional strength indicator for coated textiles.

Applications

• Quality control & acceptance testing of rubber- or plastics-coated fabrics used in inflatables, protective clothing, industrial covers, conveyor belts, tarpaulins and technical textiles.
• Product development & R&D to compare formulations, coatings or substrates by multidirectional strength rather than uniaxial tensile tests.
• Procurement and specification where burst strength requirements are specified; note that results from type A and B machines may not be directly comparable, so buyer and supplier should agree on the tester type.
• Independent testing laboratories and certification bodies performing standardized coated-fabric evaluations.

Related Standards

• ISO 2231 - standard atmospheres for conditioning and testing (referenced).
• ISO 2759 - description of Mullen-type burst testers (informative reference).
• Other parts of the ISO 3303 series (for related test methods and context).

Keywords: ISO 3303-2:2020, EN ISO 3303-2:2020, bursting strength, hydraulic method, diaphragm bursting tester, Mullen burst test, rubber-coated fabrics, plastics-coated fabrics, coated fabrics testing.

SLOVENSKI STANDARD
01-november-2020
Gumirane ali plastificirane tekstilije - Ugotavljanje razpočne trdnosti - 2. del:
Hidravlična metoda (ISO 3303-2:2020)
Rubber- or plastics-coated fabrics - Determination of bursting strength - Part 2: Hydraulic
method (ISO 3303-2:2020)
Kautschuk- oder kunststoffbeschichtete Textilien - Bestimmung des Berstwiderstands -
Teil 2: Hydraulisches Verfahren (ISO 3303-2:2020)
Supports textiles revêtus de caoutchouc ou de plastique - Détermination de la résistance
à l'éclatement - Partie 2: Méthode hydraulique (ISO 3303-2:2020)
Ta slovenski standard je istoveten z: EN ISO 3303-2:2020
ICS:
59.080.40 Površinsko prevlečene Coated fabrics
tekstilije
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 3303-2
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2020
EUROPÄISCHE NORM
ICS 59.080.40
English Version
Rubber- or plastics-coated fabrics - Determination of
bursting strength - Part 2: Hydraulic method (ISO 3303-
2:2020)
Supports textiles revêtus de caoutchouc ou de Kautschuk- oder kunststoffbeschichtete Textilien -
plastique - Détermination de la résistance à Bestimmung des Berstwiderstands - Teil 2:
l'éclatement - Partie 2: Méthode hydraulique (ISO Hydraulisches Verfahren (ISO 3303-2:2020)
3303-2:2020)
This European Standard was approved by CEN on 4 August 2020.

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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3303-2:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 3303-2:2020) has been prepared by Technical Committee ISO/TC 45 "Rubber
and rubber products" in collaboration with Technical Committee CEN/TC 248 “Textiles and textile
products” the secretariat of which is held by BSI.
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 March 2021, and conflicting national standards shall
be withdrawn at the latest by March 2021.
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 organizations 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.
Endorsement notice
The text of ISO 3303-2:2020 has been approved by CEN as EN ISO 3303-2:2020 without any
modification.
INTERNATIONAL ISO
STANDARD 3303-2
Second edition
2020-08
Rubber- or plastics-coated fabrics —
Determination of bursting strength —
Part 2:
Hydraulic method
Supports textiles revêtus de caoutchouc ou de plastique —
Détermination de la résistance à l'éclatement —
Partie 2: Méthode hydraulique
Reference number
ISO 3303-2:2020(E)
©
ISO 2020
ISO 3303-2:2020(E)
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 3303-2:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus and reagents . 1
6 Calibration . 5
7 Sampling . 5
8 Preparation of test piece . 5
9 Time-interval between manufacture and testing. 5
10 Atmosphere for conditioning and testing . 5
10.1 For conditioning . 5
10.2 For testing . 6
11 Procedure. 6
12 Test report . 6
Bibliography . 7
ISO 3303-2:2020(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 45, Rubber and rubber products,
Subcommittee SC 4, Products (other than hoses), in collaboration with the European Committee for
Standardization (CEN) Technical Committee CEN/TC 248, Textiles and textile products, in accordance
with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 3303-2:2012), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the title of Clause 5 has been changed to “Apparatus and reagents”;
— regents have been added to Clause 5;
— in 5.1.1.3 and bibliography, EN 12332-2 has been deleted as it has been replaced with this document;
— in 5.6, blotting paper has been added;
— the preparation of wet test pieces has been specified in 8.3;
— the procedure for wet test pieces has been specified in 11.6.
A list of all parts in the ISO 3303 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved

ISO 3303-2:2020(E)
Introduction
The bursting strength of coated fabrics is often used as a measure of the multidirectional modulus of
the material, as opposed to tensile properties which only provide guidance to the coated-fabric strength
in one plane. In addition, bursting strength is more appropriate for testing materials prone to necking,
such as coated fabrics with knitted substrates.
The method described in this document, which employs an elastic diaphragm, is the more common
method used in burst testing and is more suitable for the testing of lighter and medium-weight coated
fabrics. Two aperture sizes ar
...