EN ISO 6803:1997

SLOVENSKI STANDARD
SIST EN ISO 6803:2000
01-december-2000
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Rubber or plastics hoses and hose assemblies - Hydraulic-pressure impulse test without
flexing (ISO 6803:1994)
Gummi- und Kunststoffschläuche und -schlauchleitungen - Hydraulik-Druck-
Impulsprüfung ohne Biegung (ISO 6803:1994)
Tuyaux et flexibles en caoutchouc ou en plastique - Essai d'impulsions de pression
hydraulique sans flexions (ISO 6803:1994)
Ta slovenski standard je istoveten z: EN ISO 6803:1997
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
SIST EN ISO 6803:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 6803:2000

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SIST EN ISO 6803:2000

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SIST EN ISO 6803:2000

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SIST EN ISO 6803:2000
INTERNATIONAL
STANDARD
Second edition
1994-l o-01
Rubber or plastics hoses and hose
- Hydraulic-pressure impulse
assemblies
test without flexing
Tuyaux et flexibles en caoutchouc ou en plastique - Essai d ’impulsions
de pression h ydraulique sans flexions
Reference number
IS0 6803:1994(E)

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SIST EN ISO 6803:2000
IS0 6803: 1994(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 6803 was prepared by Technical Committee
lSO/TC 45, Rubber and rubber products, Subcommittee SC 1, Hoses
(rubber and plastics).
This second edition cancels and replaces the first edition
(IS0 6803:1984), which has been technically revised.
0 IS0 1994
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
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland

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SIST EN ISO 6803:2000
INTERNATIONAL STANDARD 0 IS0 IS0 6803: 1994(E)
Rubber or plastics hoses and hose assemblies -
Hydraulic-pressure impulse test without flexing
being maintained at the required test temperature.
1 Scope
Each pressure cycle shall be within the tolerances
shown in figure 1.
This International Standard describes a pressure im-
pulse test without flexing for rubber or plastics hy-
The nominal rate of pressure rise R shall be calculated
draulic hoses and hose assemblies.
from the equation
The test is applicable to high-pressure hydraulic hoses
R =f(lOp - 5)
and hose assemblies which are subject to pulsating
pressures in service.
where
NOTE 1 If it is required to carry out the test with flexing,
is the frequency, in hertz;
f
the method described in IS0 6802:1991, Rubber and p/as-
tics hose and hose assemblies with wire reinforcements
is the nominal pulse pressure, in mega-
P
- Hydraulic impulse test with flexing, should be used.
pascals.
The actual rate of pressure rise shall be determined
2 Normative references
as shown in figure 1 and shall be within a tolerance
of + 10 % of the calculated nominal value.
The following standards contain provisions which,
through reference in this text, constitute provisions
of this International Standard. At the time of publi- 3.2 Suitable graphical recorder, digital-storage
cation, the editions indicated were valid. All standards facility or oscilloscope, to enable the pressure cycle
are subject to revision, and parties to agreements to be checked against figure 1. The recorder shall have
a natural frequency of more than 250 Hz, critically
based on this International Standard are encouraged
damped to give a response flat to within 5 % up to
to investigate the possibility of applying the most re-
cent editions of the standards indicated below. 0,6 times the natural frequency.
Members of IEC and IS0 maintain registers of cur-
rently valid International Standards.
4 Test fluid
IS0 3448: 1992, Industrial liquid lubricants - IS0 vis-
Unless otherwise specified, the test fluid shall comply
cosity classificatio
...