ISO 1420:2016

DRAFT INTERNATIONAL STANDARD
ISO/DIS 1420
ISO/TC 45/SC 4 Secretariat: DSM
Voting begins on: Voting terminates on:
2015-05-08 2015-08-08
Rubber- or plastics-coated fabrics — Determination of
resistance to penetration by water
Supports textiles revêtus de caoutchouc ou de plastique — Détermination de la résistance à la pénétration
de l’eau
ICS: 59.080.40
THIS DOCUMENT IS A DRAFT CIRCULATED
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ISO/DIS 1420:2015(E)
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PROVIDE SUPPORTING DOCUMENTATION. ISO 2015

ISO/DIS 1420:2015(E)
© ISO 2015
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ii © ISO 2015 – All rights reserved

ISO/DIS 1420:2015(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Apparatus . 1
4.1 Apparatus for Method A . 1
4.2 Apparatus for Method B . 3
5 Test pieces . 4
5.1 Taking test pieces . 4
5.2 Number . 4
5.3 Shape and dimensions . 4
5.3.1 Square piece . 4
5.3.2 Circular piece . 4
6 Atmosphere for conditioning . 4
7 Time-interval between manufacture and testing. 4
8 Procedure. 5
8.1 Method A (for hydrostatic pressure less than 500 kPa) . 5
8.2 Method B (for hydrostatic pressure less than 100 kPa) . 5
9 Expression of results . 6
10 Test report . 6
ISO/DIS 1420:2015(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. www.iso.org/directives
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For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT), see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee
SC 4, Products (other than hoses).
This fourth edition cancels and replaces the third edition (ISO 1420:2001), which has been technically
revised.
iv © ISO 2015 – All rights reserved

ISO/DIS 1420:2015(E)
Introduction
The resistance to penetration by water is often used as a measure of the water-proofing of rubber
or plastics-coated fabrics when a product made from the coated fabric is exposed to various service
conditions in the field. There are some environmental factors which affect the resistance to water
penetration such as temperature, pressure or chemicals in water, however, the methods in this
International Standard only measure the property at a low to high hydrostatic pressure level at ambient
temperature.
DRAFT INTERNATIONAL STANDARD ISO/DIS 1420:2015(E)
Rubber- or plastics-coated fabrics — Determination of
resistance to penetration by water
WARNING — Persons using this International Standard should be familiar with normal laboratory
practice. This standard does not purport to address all of the safety problems, if any, associated
with its use. It is the responsibility of the user to establish appropriate safety and health practices
and to ensure compliance with any national regulatory conditions.
1 Scope
This International Standard specifies two methods for the determination of the resistance of rubber
or plastics-coated fabrics to water penetration (hydrostatic resistance) when subjected to a specific
hydrostatic pressure over a fixed period of time. Method A specifies the procedure for a low and high
hydrostatic pressure and Method B is for a low hydrostatic pressure.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 2231, Rubber- or plastics-coated fabrics — Standard atmospheres for conditioning and testing
ISO 2286-1, Rubber- or plastics-coated fabrics — Determination of roll characteristics — Part 1: Methods
for determination of length, width and net mass
3 Principle
A test piece of coated fabric is subjected to an increasing pressure of water on one face, under standard
conditions, until a predetermined pressure specified in the coated-fabric specificati
...