EN ISO 4672:1999

Rubber and plastics hoses - Sub-ambient temperature flexibility tests (ISO 4672:1997)

Specifies two methods for assessing whether a rubber or plastics hose retains adequate flexibility at sub-ambient temperatures. Replaces the second edition.

Gummi- und Kunststoffschläuche - Biegeprüfungen bei einer Temperatur unterhalb der Umgebungstemperatur (ISO 4672:1997)

Diese Europa(ische Norm legt zwei Verfahren fest zur Beurteilung, ob ein Gummi- oder Kunststoffschlauch bei Temperaturen unterhalb der Umgebungstemperatur eine ausreichende Biegsamkeit beha(lt. Verfahren A ist fu(r nicht faltbare Schla(uche mit einem Nenndurchmesser bis einschließlich 25 geeignet. Es mißt die Zunahme der Steifigkeit im Vergleich zur Biegsamkeit bei einer Norm-Labortemperatur. Verfahren B ist ein einfacheres, qualitatives Verfahren, das fu(r Kontrollpru(fungen geeignet ist und fu(r Schlau(che mit einme Nenn- durchmesser bis einschließlich 100 anwendbar ist.

Tuyaux en caoutchouc et en plastique - Essai de souplesse à température inférieure à l'ambiance (ISO 4672:1997)

La présente norme internationale spécifie deux méthodes pour vérifier si un tuyaux en caoutchouc ou en plastique conserve une souplesse suffisante à des températures inférieures à l'ambiante. La méthode A est applicable aux tuyaux non aplatissables dont le diamètre nominal va jusqu'à 25. Elle mesure l'accroissement de rigidité par rapport à la flexibilité du tuyau à température normale de laboratoire. La méthode B est un essai qualitatif plus simple destiné aux essais de contrôle et est applicable aux tuyaux dont le diamètre nominal va jusqu'à et y compris 100.

Gumene in polimerne cevi - Preskušanja upogljivosti pri temperaturah, nižjih od sobne (ISO 4672:1997)

General Information

• Status: Withdrawn
• Publication Date: 20-Jul-1999
• Withdrawal Date: 30-Nov-2011
• ICS: 23.040.70 - Hoses and hose assemblies
• Technical Committee: CEN/TC 218 - Rubber and plastics hoses and hose assemblies
• Drafting Committee: CEN/TC 218/WG 4 - Basic specifications and test methods for rubber and plastics hoses, hose assemblies and tubing
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 01-Dec-2011
• Completion Date: 01-Dec-2011
• Ref Project: SIST EN ISO 4672:2000 - Rubber and plastics hoses - Sub-ambient temperature flexibility tests (ISO 4672:1997)

Relations

• Replaced By: EN ISO 10619-2:2011 - Rubber and plastics hoses and tubing - Measurement of flexibility and stiffness - Part 2: Bending tests at sub-ambient temperatures (ISO 10619-2:2011)
• Effective Date: 14-Dec-2011

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2000
Gumene in polimerne cevi - Preskušanja upogljivosti pri temperaturah, nižjih od
sobne (ISO 4672:1997)
Rubber and plastics hoses - Sub-ambient temperature flexibility tests (ISO 4672:1997)
Gummi- und Kunststoffschläuche - Biegeprüfungen bei einer Temperatur unterhalb der
Umgebungstemperatur (ISO 4672:1997)
Tuyaux en caoutchouc et en plastique - Essai de souplesse a température inférieure a
l'ambiance (ISO 4672:1997)
Ta slovenski standard je istoveten z: EN ISO 4672:1999
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL IS0
STANDARD 4672
Third edition
1997-03-01
Rubber and plastics hoses - Sub-ambient
temperature flexibility tests
Tuyaux en caoutchouc et en plastique - Essais de souplesse 2
tempka ture infkieure 2 I’ambian te
Reference number
I SO 4672: 1997(E)
IS0 4672: 1997(E)
_ Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work of
preparing International Standards is normally carried out through IS0
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. IS0
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 voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard IS0 4672 was prepared by Technical Committee
ISO/lC 45, Rubber and rubber products, Subcommittee SC 1, Hoses
(rubber and plastics).
This third edition cancels and replaces the second edition (IS0 4672:1988),
which has been technically revised.
0 IS0 1997
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
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Printed in Switzerland
II
INTERNATIONAL STANDARD @ IS0 IS0 4672: 1997(E)
Rubber and plastics hoses - Sub-ambient temperature
flexibility tests
1 Scope
This International Standard specifies two methods for assessing whether a rubber or plastics
hose retains adequate flexibility at sub-ambient temperatures.
Method A is applicable to non-collapsible hose with a nominal bore up to and including 25.
It measures the increase in stiffness compared to the flexibility at a standard laboratory
temperature.
Method B is a simpler, qualitative method suitable for control testing and is applicable to hose
with a nominal bore up to and including 100.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute
provisions of this International Standard. At the time of publication, the editions indicated were
valid. All standards are subject to revision, and parties to agreements based on this
International Standard are encouraged to investigate the possibility of applying the most recent
editions of the standards indicated below.
Members of IEC and IS0 maintain registers of
currently valid International Standards.
IS0 47 1 : 1995 Rubber - Temperatures, humidities and times for conditioning and testing.
IS0 1402 : 1994 Rubber and plastics hoses and hose assemblies - Hydrostatic testing.
IS0 3383 : 1985 Rubber - General directions for achieving elevated or subnormal temperatures
for test purposes.
3 Method A - Sub-ambient temperature stiffness test
31 . Annaratus (see figure 1)
3.1.1 Torque wheel, having a diameter equal to twice the minimum bend radius specified for
the hose, provided with equipment for holding the hose tangential to the wheel, a suitable device
to bend the hose around the wheel, and a strain gauge and graphical recorder to measure the
torque with an accuracy of + 3 %. If the minimum bend radius is not specified the torque
wheel shall have a diameter equal to 12 times the nominal bore of the hose.
IS0 4672: 1997(E)
3.1.2 Cooling container, equipped with an agitator, a temperature-measuring device and a
roller having a diameter of 50 mm for guiding the hose.
The coolant shall not affect the hose to be tested and shall be used as prescribed in IS0 3383.
A suitable coolant liquid is methanol or ethanol with crushed dry ice (solid carbon dioxide)
added. Gaseous coolants may be employe
...