EN ISO 1167-3:2007

SLOVENSKI STANDARD
01-junij-2008
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SIST EN 921:1997
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Thermoplastics pipes, fittings and assemblies for the conveyance of fluids -
Determination of the resistance to internal pressure - Part 3: Preparation of components
(ISO 1167-3:2007)
Rohre, Formstücke und Bauteilkombinationen aus thermoplastischen Kunststoffen für
den Transport von Flüssigkeiten - Bestimmung der Widerstandsfähigkeit gegen inneren
Überdruck - Teil 3: Vorbereitung der Rohrleitungsteile (ISO 1167-3:2007)
Tubes, raccords et assemblages en matieres thermoplastiques pour le transport des
fluides - Détermination de la résistance a la pression interne - Partie 3: Préparation des
composants (ISO 1167-3:2007)
Ta slovenski standard je istoveten z: EN ISO 1167-3:2007
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
23.040.45 Fitingi iz polimernih Plastics fittings
materialov
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 1167-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2007
ICS 23.040.45; 23.040.20 Supersedes EN 921:1994
English Version
Thermoplastics pipes, fittings and assemblies for the
conveyance of fluids - Determination of the resistance to internal
pressure - Part 3: Preparation of components (ISO 1167-3:2007)
Tubes, raccords et assemblages en matières Rohre, Formstücke und Bauteilkombinationen aus
thermoplastiques pour le transport des fluides - thermoplastischen Kunststoffen für den Transport von
Détermination de la résistance à la pression interne - Partie Flüssigkeiten - Bestimmung der Widerstandsfähigkeit
3: Préparation des composants (ISO 1167-3:2007) gegen inneren Überdruck - Teil 3: Vorbereitung der
Rohrleitungsteile (ISO 1167-3:2007)
This European Standard was approved by CEN on 2 October 2007.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1167-3:2007: E
worldwide for CEN national Members.

Contents Page
Foreword.3

Foreword
This document (EN ISO 1167-3:2007) has been prepared by Technical Committee ISO/TC 138 "Plastics
pipes, fittings and valves for the transport of fluids" in collaboration with Technical Committee CEN/TC 155
“Plastics piping systems and ducting systems” the secretariat of which is held by NEN.
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 May 2008, and conflicting national standards shall be withdrawn at the
latest by May 2008.
This document supersedes EN 921:1994.
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 1167-3:2007 has been approved by CEN as a EN ISO 1167-3:2007 without any modification.

INTERNATIONAL ISO
STANDARD 1167-3
First edition
2007-11-01
Thermoplastics pipes, fittings and
assemblies for the conveyance of
fluids — Determination of the resistance
to internal pressure —
Part 3:
Preparation of components
Tubes, raccords et assemblages en matières thermoplastiques pour le
transport des fluides — Détermination de la résistance à la pression
interne —
Partie 3: Préparation des composants

Reference number
ISO 1167-3:2007(E)
©
ISO 2007
ISO 1167-3:2007(E)
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ii © ISO 2007 – All rights reserved

ISO 1167-3:2007(E)
Contents Page
Foreword. iv
1 Scope .1
2 Normative references .1
3 Principle.1
4 Pressure-tight devices .2
4.1 General.2
4.2 Components with plain sockets.2
4.3 Components with socket and gasket .5
4.4 Closing devices for valve bodies.6
5 Test pieces .8
5.1 Sampling.8
5.2 Preparation of test pieces.9
6 Test report .9

ISO 1167-3:2007(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. 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.
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.
ISO 1167-3 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the
transport of fluids, Subcommittee SC 5, General properties of pipes, fittings and valves of plastic materials and
their accessories — Test methods and basic specifications.
This first edition of ISO 1167-3, together with ISO 1167-2, cancels and replaces ISO 12092:2000, of which it
constitutes a technical revision.
ISO 1167-3 consists of the following parts, under the general title Thermoplastics pipes, fittings and
assemblies for the conveyance of fluids — Determination of the resistance to internal pressure:
⎯ Part 1: General method
⎯ Part 2: Preparation of pipe test pieces
⎯ Part 3: Preparation of components
⎯ Part 4: Preparation of assemblies

iv © ISO 2007 – All rights reserved

INTERNATIONAL STANDARD ISO 1167-3:2007(E)

Thermoplastics pipes, fittings and assemblies for the
conveyance of fluids — Determination of the resistance to
internal pressure —
Part 3:
Preparation of components
1 Scope
This part of ISO 1167 specifies the procedure for the preparation of components, i.e. fittings and valve bodies,
for the determination of their resistance to internal hydrostatic pressure according to ISO 1167-1.
NOTE Polyolefin fittings for butt fusion, electrofusion and socket fusion are usually tested as an assembly and are
treated in ISO 1167-4.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 1167-1:2006, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination
of the resistance to internal pressure — Part 1: General method
3 Principle
Test pieces, each comprising a single component with its appropriate sealing devices or a pipe-component
assembly, are mounted with end caps or alternative means to arrive at a pressure-tight test piece assembly.
Following conditioning at the specified test temperature, these test pieces are subjected to the internal
hydrostatic pressure according to ISO 1167-1 for a specified period of time or until the test piece(s) fail(s).
The number of test pieces, conditioning and details of the test report are as given in ISO 1167-1.
NOTE It is assumed that the following test parameters (see 5.1) are set by the standard making reference to this part
of ISO 1167 and, respectively, to ISO 1167-1:
a) the sampling requirements;
b) the period of time between the date of production of the parts and the tests.
ISO 1167-3:2007(E)
4 Pressure-tight devices
4.1 General
Pressure-tight devices shall allow sealing and connection of components with the pressurizing equipment and
a means of purging the air before testing. The devices shall not prevent the free parts of components,
between joints, from deforming under the action of hydrostatic pressure for the duration of the test. External
reinforcing rings may be used to prevent any leakage from the joint for the required duration of the test. The
external reinforcing rings and the internal seal shall be located within the area of the socket.
The openings in the pressure-bearing component shall be closed off such that all air is expelled and the test
piece can be tested in a safe manner without any negative effect on the test results.
The devices shall be in accordance with 4.2.1, 4.2.2 or 4.2.3, as applicable, or shall be of one of the types
specified in 4.2.4 or 4.3.
The type of pressure-tight devices shall be identified in the test report (see Clause 6).
4.2 Components with plain sockets
4.2.1 Joints using pipes and/or end caps
See Figure 1.
Figure 1 — Example of pressure-tight test piece with hydrostatic end thrust
Each of the sockets of the component shall be joined to a portion of pipe and/or end cap of the series for
which it is designed. The pipe ends shall be prepared in accordance with the requirements of the joint design.
The free length of the pipes shall be such that the connectors can be fixed without difficulty and shall be as
short as possible.
IMPORTANT — Care shall be taken that no additional stress is induced by the pressure-tight
...