ISO 4074-6:1996
(Main)Rubber condoms — Part 6: Determination of bursting volume and pressure
Rubber condoms — Part 6: Determination of bursting volume and pressure
Describes the method of determining the bursting volume and pressure of rubber condoms. Replaces the second edition.
Préservatifs masculins en caoutchouc — Partie 6: Détermination du volume et de la pression d'éclatement
General Information
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Standards Content (Sample)
Is0
INTERNATIONAL
4074-6
STANDARD
Third edition
1996-08-15
Rubber condoms -
Part 6:
Determination of bursting volume
and pressure
Pkservatifs masculins en caoutchouc -
Partie 6: Dgtermination du volume et de la pression d&la temen t
Reference number
IS0 4074-6:1996(E)
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IS0 4074-6: 1996(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
(I EC) 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 4074-6 was prepared by Technical Committee
ISO/TC 157, Mechanical contraceptives.
This third edition cancels and replaces the second edition
(IS0 4074-6:1984), of which it constitutes a technical revision.
IS0 4074 consists of the following parts, under the general title Rubber
condoms:
- Part 1: Requirements
- Part 2: Determination of length
- Part 3: Determination of width
- Part 5: Testing for holes - Water leak test
- Part 6: Determination of bursting volume and pressure
- Part 7: Oven conditioning
- Part 9: De termination of tensile properties
- Part IO: Packaging and labelllng - Condoms in consumer packages
0 IS0 1996
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
ii
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0 IS0
IS0 4074-6: 1996(E)
Annex A of this part of IS0 4074 is for information only.
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IS0 4074-6: 1996(E)
INTERNATIONAL STANDARD 0 ISO
Rubber condoms -
Part 6:
Determination of bursting volume and pressure
differential between the condom and the pressure
1 Scope
gauge.
This part of IS0 4074 specifies the method of deter-
mining the bursting volume and pressure of rubber
3.2 Apparatus for recording the volume of in-
condoms.
flation air, configured such that the volume of air is
measured or calculated at the appropriate pressure
2 Principle
within the condom and not at the line pressure which
may be higher.
A specified length of the condom is inflated with air
and the volume of air used for inflation and the
Whatever method is used to measure volume, it shall
pressure at the moment of bursting are recorded.
be accurate to + 0,03 % for volumes greater than
10 dm3. -
NOTE 1 Burst volume is the volume of air that has
flowed into the condom until the moment of burst.
3.3 Rod of suitable length, having a smooth sphere
or hemisphere of 25 mm in diameter at its top for
3 Apparatus
hanging the unrolled condom when fixed to the ap-
paratus, and fixed in a position such that when the
Inflation apparatus, as shown in figure 1, suitable for
condom is clamped, the length of the condom re-
inflating the condom with clean oil-free and moisture-
maining for inflation is 150 mm + 3 mm.
free air at a specified rate, provided with equipment
for measuring volume and pressure and having the
features in 3.1 to 3.4.
3.4 Clamping ring, having no sharp edges or
protrusions.
If an inflation cabinet is used, it is recommended that
it have a window for viewing the condom during in-
The clamping ring should not stretch the condom as
flation, and that it be of sufficient size to allow the
the clamping ring is placed onto its mount.
condom to expand freely without touching any p if-t
of the cabinet.
When used with an air-inflated cuff mount, the
clamping ring should extend no more than approxi-
ie mately 3 mm above the air-inflated cuff, which should
3.1 Pressure gauge, capable of measuring t
deflate to such a diameter that the condom freely rolls
pressure at burst of the condom to an accuracy of
over it.
+ 0,05 kPa, configured such that there is no press1 re
-
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IS0 4074-6: 1996(E) 0 IS0
Dimensions in millimetres
A-A
of clear plastics
-Flexible expansion cuff
@ 30 uninflated cuff
@ 38 inflated cuff
Pressure tap -
‘----Expansion cuff air inlet
Condom inflation air inlet -
NOTE - The figure shows an example. Other types of clamps are also in use.
Figure 1 - Example of suitable apparatus
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0 IS0
IS0 4074-6: 1996(E)
condom is deemed to be a failure and the bursting
4 Procedure
volume and pressure are recorded as zero.
4.1 Wear suitable gloves while handling the
condom.
4.5 If the condom does not leak, measure and note
the bursting volume, in cubic decimetres rounded to
4.2 Move the condom inside the package such that
at least the nearest 0,5 dm3, and the bursting press-
it is away from the area where the package is to be
ure, in kilopascals rounded to the nearest 0,05 kPa.
torn. Tear the package and remove the condom.
In no circum stances use scissors or other sharp in-
str uments to open th e package.
5 Test record
4.3 Unroll the condom, ensuring that it is not ex-
cessively stretched in any direction.
The test record shall include at least the following
particulars:
NOTE 2 The condom may be unrolled directly onto the
rod (3.3).
a) the number of condoms tested;
4.4 Hang the condom on the rod and fix to the identification of the sample, e.g. batch number;
b)
mount. Inflate with air at a rate of 0,4 dm3/s to
the relevant test parameters;
0,5 dm3/s (24 dm3/min to 30 dm3/min). Check to en- d
sure that the condom expands and that there are no
d) the bursting volume and bursting pressure of each
visible leaks.
condom tested;
If the condom exhibits any o bviou s leaks or leaks are
ntinue the test. The date of test.
detected during the inflation, disco e)
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Q IS0
IS0 4074-6: 1996(E)
Annex A
(informative)
pressure:
Air inflation equipment for determination of bursting volume and
Example of system checks and calibrations
into the condom. If the cuff and the air suppl y can be
A.1 System check algorithm
actuated separately, it is possible to chec
...
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