EN ISO 8308:1995

Rubber and plastics hoses and tubing - Determination of transmission of liquids through hose and tubing walls (ISO 8308:1993)

This technical report provides an overview of protection availability provided by residual current-operated protective devices (RCDs) complying with IEC standards for household and similar uses. It highlights the main parameters influencing protection reliability and provides information on how to install and operate RCDs in relationship to their environmental conditions after installation.

Gummi- und Kunststoffschläuche - Bestimmung der Durchlässigkeit von Schlauchwandungen gegenüber Flüssigkeiten (ISO 8308:1993)

Diese Internationale Norm legt zwei Verfahren zur Bestimmung der Durchlässigkeit von Schlauchwandungen gegenüber Flüssigkeiten fest. Beide Verfahren werden auf Schläuche aus Gummi und Kunststoff angewendet und umfassen: Verfahren A - für alle Schlauchgrößen und Bauweisen; es handelt sich um eine praktische Vergleichsprüfung, die Arbeitsbedingungen simuliert. Verfahren B - für Schläuche mit einem Innendurchmesser bis zu 16 mm.

Tuyaux et tubes en caoutchouc et en plastique - Détermination de la transmission des liquides à travers les parois des tuyaux et des tubes (ISO 8308:1993)

Le présent rapport technique fournit une vue d'ensemble de la disponibilité de la protection assurée par les dispositifs différentiels résiduels (DDR) conformes aux normes de la CEI pour usages domestiques et analogues. Il met en évidence les paramètres principaux déterminant la disponibilité de la protection assurée par les DDR et fournit les informations nécessaires à l'installation et au fonctionnement des DDR en relation avec les conditions environnementales après installation.

Gumene ali polimerne cevi in cevovodi - Ugotavljanje prenosa tekočin skozi stene cevi in stene cevovodov (ISO 8308:1993)

General Information

• Status: Withdrawn
• Publication Date: 12-Dec-1995
• Withdrawal Date: 22-Jan-2008
• 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: 23-Jan-2008
• Completion Date: 23-Jan-2008
• Ref Project: SIST EN ISO 8308:2000 - Rubber and plastics hoses and tubing - Determination of transmission of liquids through hose and tubing walls (ISO 8308:1993)

Relations

• Replaced By: EN ISO 8308:2008 - Rubber and plastics hoses and tubing - Determination of transmission of liquids through hose and tubing walls (ISO 8308:2006)
• Effective Date: 22-Dec-2008

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 8308:2000
01-december-2000
*XPHQHDOLSROLPHUQHFHYLLQFHYRYRGL8JRWDYOMDQMHSUHQRVDWHNRþLQVNR]LVWHQH
FHYLLQVWHQHFHYRYRGRY,62
Rubber and plastics hoses and tubing - Determination of transmission of liquids through
hose and tubing walls (ISO 8308:1993)
Gummi- und Kunststoffschläuche - Bestimmung der Durchlässigkeit von
Schlauchwandungen gegenüber Flüssigkeiten (ISO 8308:1993)
Tuyaux et tubes en caoutchouc et en plastique - Détermination de la transmission des
liquides a travers les parois des tuyaux et des tubes (ISO 8308:1993)
Ta slovenski standard je istoveten z: EN ISO 8308:1995
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
SIST EN ISO 8308:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 8308:2000

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SIST EN ISO 8308:2000

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SIST EN ISO 8308:2000

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SIST EN ISO 8308:2000

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SIST EN ISO 8308:2000

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SIST EN ISO 8308:2000
INTERNATIONAL
IS0
STANDARD
8308
Second edition
1993-04-O 1
Rubber and plastics hoses and tubing -
Determination of transmission of liquids
through hose and tubing walls
Tuyaux et tubes en caoutchouc et en plastique - D&ermination de la
transmission des liquides 9 travers les parois des tuyaux et des tubes
Reference number
IS0 8308:1993(E)

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SIST EN ISO 8308:2000
IS0 8308:1993(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 8308 was prepared by Technical Committee
lSO/TC 45, Rubber and rubber products, Sub-Committee SC 1, Hoses
(rubber and plastics).
This second edition cancels and replaces the first edition
(IS0 8308:1987), of which it constitutes a technical revision.
0 IS0 1993
All rights reserved. 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 per-
mission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
ii

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SIST EN ISO 8308:2000
INTERNATIONAL STANDARD IS0 8308:1993(i)
Rubber and plastics hoses and tubing -
Determination of transmission of liquids through hose
and tubing walls
3 Principle
1 Scope
This International Standard specifies two methods for
3.1 Method A
the determination of transmission of liquids through
hose and tubing walls. Both methods are applicable
This method is carried out on an assembly mounted
to rubber and plastics hose and tubing, and comprise:
in a test apparatus fitted with equipment to fill and
measure a charged volume of a volatile liquid. The
Method A - for all hose sizes and constructions:
system is put under pressure, and the change in vol-
a practical comparative test, simulating working
ume measured at 24-h intervals until the change has
conditions.
become constant with time, i.e. an equilibrium state
has been reached. The test result is this steady-state
Method B - for hose and tubing up to 16 mm
evaporation rate, expressed as the volume of liquid
internal diameter.
lost per hour per unit inside surface area of the hose
or tubing.
3.2 Method B
This method uses a pressureless reservoir. A length
of hose or tubing is attached to the reservoir, the
other end of the hose or tubing being plugged. The
2 Normative references
reservoir is partially filled with test liquid and sealed.
The assembly is weighed at the start of the test, and
The following standards contain provisions which,
once every 24 h for eight days. The test result is the
through reference in this text, constitute provisions
maximum mass of liquid lost in any one 24-h period
of this International Standard. At the time of publi-
per unit inside surface area of the hose or tubing.
cation, the editions indicated were valid. All standards
are subject to revision, and parties to agreements
NOTE 1 The method accounts for loss by permeation and
based on this International Standard are encouraged
evaporation and helps to .minimize selective permeation of
to investigate the possibility of applying the most re-
components in a fuel mixture since the liquid is agitated
cent editions of the standards indicated below.
daily.
Members of IEC and IS0 maintain registers of cur-
rently valid International Standards.
4 Test liquid
Standard temperatures, hu-
IS0 471 :I 983, Rubber -
midities and times for the conditioning and testing of The test liquid shall be that specified in the appropri-
test pieces. ate product standard.
IS0 4671: 1984, Rubber and plastics hose and hose
5 Method A
Methods of measurement of dimen-
assemblies -
sions.
WARNING - Because of the presence of poten-
tially hazardous vapours, ensure that this test is
IS0 4788:1980, Laboratory glassware - Graduated
carried out in a well ventilated area.
measuring cylinders.

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SIST EN ISO 8308:2000
IS0 8308: 1993(E)
in accordance with figure2, fitted with suitable coup-
5.1 Apparatus
lings and adapters.
The apparatus consists of a nitrogen gas source con-
Three test pieces shall be tested.
nected to a pipe system. The gas pressure is
controlled by a regulator and pressure gauge.
It is essential that the system be provided with a
5.3 Test temperature
safety valve.
The test piece is fixed vertically and is connected to
The test temperature sha
...