EN ISO 2231:1995

Rubber- or plastics-coated fabrics - Standard atmospheres for conditioning and testing (ISO 2231:1989)

Specifies the requirements and definitions and determines pre-conditioning, characteristics of test atmospheres and methods of conditioning. Technical revision of the clauses 3 and 4 of the first edition (ISO 2231-1973).

Mit Kautschuk oder Kunststoff beschichtete Textilien - Normalklimate zur Konditionierung und Prüfung (ISO 2231:1989)

Diese internationale Norm spezifiert die charakteristischen Eigenschaften für Konditionierung und die Konditionierungsmethoden der mit Gummi oder Kunst- stoffen beschichteten Textilien.

Supports textiles revêtus de caoutchouc ou de plastique - Atmosphères normales de conditionnement et d'essai (ISO 2231:1989)

La présente Norme internationale prescrit les caractéristiques pour le conditionnement et les méthodes de conditionnement employées pour les supports textiles revêtus de caoutchouc ou de plastique.

Gumirane ali plastificirane tekstilije - Standardna atmosfera za kondicioniranje in preskušanje (ISO 2231:1989)

General Information

• Status: Published
• Publication Date: 26-Mar-1995
• 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: 9093 - Decision to confirm - Review Enquiry
• Start Date: 02-Jul-2010
• Completion Date: 02-Jul-2010
• Ref Project: SIST EN ISO 2231:1999 - Rubber- or plastics-coated fabrics - Standard atmospheres for conditioning and testing (ISO 2231:1989)

Overview

EN ISO 2231:1995 (ISO 2231:1989) specifies standard atmospheres and conditioning methods for rubber- or plastics-coated fabrics used in laboratory testing. The standard defines required atmospheres, pre-conditioning procedures, and acceptance criteria for moisture equilibrium so that test results (mass, mechanical properties, thread breaking, etc.) are comparable and reproducible. This edition incorporates a technical revision of clauses on definitions and conditioning and introduces a dedicated pre‑conditioning clause.

Key topics and requirements

• Scope and purpose
  • Applies to conditioning and methods of conditioning for coated fabrics prior to testing.
  • Ensures moisture content and temperature are controlled because these affect test outcomes.
• Defined standard atmospheres
  • Atmosphere A: 20 °C ± 2 °C; 65 % ± 5 % RH
  • Atmosphere B: 23 °C ± 2 °C; 50 % ± 5 % RH
  • Atmosphere C (tropical): 27 °C ± 2 °C; 65 % ± 5 % RH
  • Atmosphere D: Temperature control only at 23 °C ± 2 °C
  • Atmosphere E (tropical temp. control): Temperature control only at 27 °C ± 2 °C
• Pre-conditioning
  • For highly hygroscopic substrates or when high accuracy is required, specimens should be pre-conditioned from the dry side of the hysteresis curve (≤ 10 % RH) at elevated temperature (60–70 °C) to approach equilibrium.
• Equilibrium criteria
  • Moisture equilibrium is reached when successive weighings of freely exposed specimens, at 2‑hour intervals, differ by less than 0.1 %.
  • Recommended minimum exposure times: 16 h for fabrics coated on one side; 24 h for both‑sided coatings.
• Methods of conditioning
  • Method 1: Expose test pieces freely to Atmosphere A, B or C until equilibrium is achieved.
  • Method 2: Expose test pieces freely to Atmosphere D or E for a period of 3 hours (where applicable).
• Normative reference
  • ISO 554 (Standard atmospheres for conditioning and/or testing) is referenced for the standard reference atmosphere.

Applications and users

• Manufacturers of rubber‑ or plastics‑coated fabrics for quality control and product specification.
• Independent testing laboratories performing mechanical, mass or durability tests where moisture/temperature affects results.
• R&D teams validating material formulations and coating processes under controlled climates.
• Procurement and compliance teams relying on standardized test reports for acceptance criteria.

Related standards

• ISO 554 - Standard atmospheres for conditioning and/or testing (normative reference cited by EN ISO 2231).
• Any material‑ or test‑specific standards that reference designated conditioning atmospheres and methods (consult the particular test standard to choose the correct atmosphere).

Keywords: EN ISO 2231:1995, ISO 2231:1989, rubber-coated fabrics, plastics-coated fabrics, standard atmospheres, conditioning and testing, pre-conditioning, relative humidity, ISO 554.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-1999
Gumirane ali plastificirane tekstilije - Standardna atmosfera za kondicioniranje in
preskušanje (ISO 2231:1989)
Rubber- or plastics-coated fabrics - Standard atmospheres for conditioning and testing
(ISO 2231:1989)
Mit Kautschuk oder Kunststoff beschichtete Textilien - Normalklimate zur Konditionierung
und Prüfung (ISO 2231:1989)
Supports textiles revetus de caoutchouc ou de plastique - Atmospheres normales de
conditionnement et d'essai (ISO 2231:1989)
Ta slovenski standard je istoveten z: EN ISO 2231:1995
ICS:
59.080.40 3RYUãLQVNRSUHYOHþHQH Coated fabrics
WHNVWLOLMH
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 2231
Second edition
1989-08-01
Rubber- or plastics-coated fabrics - Standard
atmospheres for conditioning and testing
Supports textiles revbs de caoutchouc ou de plastique - A tmospheres normales
de conditionnement et d’essai
Reference number
ISO 2231 : 1989 (EI
ISO 2231 : 1989 (EI
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. Esch 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, govern-
mental 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.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council. They are approved in accordance with ISO procedures requiring at
least 75 % approval by the member bodies voting.
International Standard ISO 2231 was prepared by Technical Committee ISO/TC 45,
Rubber and rubber products.
This second edition cancels and replaces the first edition (ISO 2231 : 19731, clauses 3
and 4 of which have been technically revised (see clauses 5 and 6 in revised text). In ad-
dition, a new clause on pre-conditioning has been introduced (clause 4 in revised text).
0 ISO 1989
All rights reserved. No patt of this publication may be reproduced or utilized in any form or by any
means, electronie or mechanical, including photocopying and microfilm, without Permission in
writing from the publisher.
International Organization for Standardization
Case postale 56 l CH-121 1 Geneve 20 l Switzerland
Printed in Switzerland
ii
ISO 2231 : 1989 (E)
Introduction
Most coated fabrics contain a certain amount of moisture absorbed from the air with
which they are in contact, and the amount of moisture depends on the quantity of
water vapour in the air.
Certain properties, particularly mass and those concerned with the breaking of
threads, are affected by the moisture content of the fabric. In Order to standardize
methods of test it is, therefore, important to control the moisture content of the mate-
rial under test. This is done by conditioning test pieces in an atmosphere of controlled
humidity before testing. For some other properties, the effect of the moisture content
of the fabric is minimal, and it is only necessary to condition for temperature.
. . .
Ill
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SIST EN ISO 2231
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