Rubber and plastics hoses and hose assemblies - Determination of resistance to vacuum (ISO 7233:2021)

This document specifies three methods for determining the resistance to vacuum of hoses and hose
assemblies manufactured from plastic or rubber. Applicable dimensions of hoses for each method are
as follows:
— method A for hoses of nominal size up to and including 80;
— method B for hoses of nominal size greater than 80;
— method C for hoses of all dimensions.
If not otherwise specified in the product standard, method C can be used as an alternative to
methods A and B.
Methods A and B can also be used to check the adhesion of the lining to the reinforcement (delamination)
in a length of hard-wall hose or hose assembly.

Gummi- und Kunststoffschläuche und -schlauchleitungen - Bestimmung der Beständigkeit gegen Vakuum (ISO 7233:2021)

Dieses Dokument legt drei Verfahren zur Bestimmung der Beständigkeit von Schläuchen und Schlauchleitungen aus Kunststoff oder Gummi gegen Vakuum fest. Für jedes Verfahren sind im Folgenden die zutreffenden Schlauchmaße angegeben:
- Verfahren A - für Schläuche mit einer Nennweite bis einschließlich 80;
- Verfahren B - für Schläuche mit einer Nennweite über 80;
- Verfahren C - für alle Schlauchmaße.
Sofern in der Produktnorm nicht anders festgelegt, kann Verfahren C als Alternative zu den Verfahren A und B verwendet werden.
Die Verfahren A und B können auch zur Prüfung der Haftung zwischen Innenschicht und Verstärkungselement (Schichtablösung) in der Länge eines Schlauches mit Wendel oder einer Schlauchleitung verwendet werden.

Tuyaux et flexibles en caoutchouc et en plastique - Détermination de la résistance à l'aspiration (ISO 7233:2021)

Gumene in polimerne cevi ter cevni priključki - Ugotavljanje odpornosti proti vakuumu (ISO 7233:2021)

General Information

Status
Published
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
19-May-2021
Completion Date
19-May-2021

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SLOVENSKI STANDARD
SIST EN ISO 7233:2021
01-julij-2021
Nadomešča:
SIST EN ISO 7233:2016
Gumene in polimerne cevi ter cevni priključki - Ugotavljanje odpornosti proti
vakuumu (ISO 7233:2021)
Rubber and plastics hoses and hose assemblies - Determination of resistance to
vacuum (ISO 7233:2021)
Gummi- und Kunststoffschläuche und -schlauchleitungen - Bestimmung der
Beständigkeit gegen Vakuum (ISO 7233:2021)

Tuyaux et flexibles en caoutchouc et en plastique - Détermination de la résistance à

l'aspiration (ISO 7233:2021)
Ta slovenski standard je istoveten z: EN ISO 7233:2021
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
SIST EN ISO 7233:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 7233:2021
---------------------- Page: 2 ----------------------
SIST EN ISO 7233:2021
EN ISO 7233
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2021
EUROPÄISCHE NORM
ICS 23.040.70 Supersedes EN ISO 7233:2016
English Version
Rubber and plastics hoses and hose assemblies -
Determination of resistance to vacuum (ISO 7233:2021)

Tuyaux et flexibles en caoutchouc et en plastique - Gummi- und Kunststoffschläuche und -

Détermination de la résistance à l'aspiration (ISO schlauchleitungen - Bestimmung der Beständigkeit

7233:2021) gegen Vakuum (ISO 7233:2021)
This European Standard was approved by CEN on 19 April 2021.

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

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 7233:2021 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 7233:2021
EN ISO 7233:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 7233:2021
EN ISO 7233:2021 (E)
European foreword

This document (EN ISO 7233:2021) has been prepared by Technical Committee ISO/TC 45 "Rubber and

rubber products" in collaboration with Technical Committee CEN/TC 218 “Rubber and plastics hoses

and hose assemblies” 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 November 2021, and conflicting national standards

shall be withdrawn at the latest by November 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.

This document supersedes EN ISO 7233:2016.

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 7233:2021 has been approved by CEN as EN ISO 7233:2021 without any modification.

---------------------- Page: 5 ----------------------
SIST EN ISO 7233:2021
---------------------- Page: 6 ----------------------
SIST EN ISO 7233:2021
INTERNATIONAL ISO
STANDARD 7233
Fifth edition
2021-04
Rubber and plastics hoses and hose
assemblies — Determination of
resistance to vacuum
Tuyaux et flexibles en caoutchouc et en plastique — Détermination de
la résistance à l'aspiration
Reference number
ISO 7233:2021(E)
ISO 2021
---------------------- Page: 7 ----------------------
SIST EN ISO 7233:2021
ISO 7233:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

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: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 7233:2021
ISO 7233:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

5 Apparatus ..................................................................................................................................................................................................................... 1

6 Test pieces ................................................................................................................................................................................................................... 2

7 Conditioning of test pieces ......................................................................................................................................................................... 2

8 Test pressure ............................................................................................................................................................................................................ 2

9 Procedures .................................................................................................................................................................................................................. 2

9.1 Method A ...................................................................................................................................................................................................... 2

9.2 Method B ...................................................................................................................................................................................................... 2

9.3 Method C ...................................................................................................................................................................................................... 3

10 Test report ................................................................................................................................................................................................................... 4

© ISO 2021 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 7233:2021
ISO 7233:2021(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 pr
...

SLOVENSKI STANDARD
oSIST prEN ISO 7233:2020
01-marec-2020
Gumene in polimerne cevi ter cevni priključki - Ugotavljanje odpornosti proti
vakuumu (ISO/DIS 7233:2020)
Rubber and plastics hoses and hose assemblies - Determination of resistance to
vacuum (ISO/DIS 7233:2020)
Gummi- und Kunststoffschläuche und -schlauchleitungen - Bestimmung der
Beständigkeit gegen Vakuum (ISO/DIS 7233:2020)

Tuyaux et flexibles en caoutchouc et en plastique - Détermination de la résistance à

l'aspiration (ISO/DIS 7233:2020)
Ta slovenski standard je istoveten z: prEN ISO 7233
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
oSIST prEN ISO 7233:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 7233:2020
---------------------- Page: 2 ----------------------
oSIST prEN ISO 7233:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 7233
ISO/TC 45/SC 1 Secretariat: DIN
Voting begins on: Voting terminates on:
2020-01-24 2020-04-17
Rubber and plastics hoses and hose assemblies —
Determination of resistance to vacuum

Tuyaux et flexibles en caoutchouc et en plastique — Détermination de la résistance à l'aspiration

ICS: 23.040.70
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 7233:2020(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2020
---------------------- Page: 3 ----------------------
oSIST prEN ISO 7233:2020
ISO/DIS 7233:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© 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: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 7233:2020
ISO/DIS 7233:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

5 Apparatus ..................................................................................................................................................................................................................... 1

6 Test pieces ................................................................................................................................................................................................................... 2

7 Conditioning of test pieces ......................................................................................................................................................................... 2

8 Test pressure ............................................................................................................................................................................................................ 2

9 Procedures .................................................................................................................................................................................................................. 2

9.1 Method A ...................................................................................................................................................................................................... 2

9.2 Method B ...................................................................................................................................................................................................... 2

9.3 Method C ...................................................................................................................................................................................................... 3

10 Test report ................................................................................................................................................................................................................... 4

© ISO 2020 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 7233:2020
ISO/DIS 7233:2020(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 1, Rubber and plastics hoses and hose assemblies.

This fifth edition cancels and replaces the fourth edition (ISO 7233:2016), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— Hose assembly has been added in the text

— A statement regarding change in length, as mentioned in Method C, has been added.

A list of all parts in the ISO 7233 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
---------------------- Page: 6 ----------------------
oSIST prEN ISO 7233:2020
ISO/DIS 7233:2020(E)
Introduction

Vacuum testing is applied to hoses or hose assemblies to determine whether they will withstand the

differential pressure encountered in service resulting from reduced pressure within the hose or hose

...

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