prEN 12106

SLOVENSKI STANDARD
01-september-2024
Cevni sistemi iz polimernih materialov - Polietilen (PE), zamreženi polietilen (PE-X)
in cevi iz nemehčanega poliamida (PA-U) - Metoda za preskus odpornosti proti
notranjemu tlaku po izvedenem stiskanju cevi (squeeze-of)
Plastics piping systems - Polyethylene (PE), crosslinked polyethylene (PE-X) and
unplasticized polyamide (PA-U) pipes - Test method for the resistance to internal
pressure after application of squeeze-off
Kunststoff-Rohrleitungssysteme - Rohre aus Polyethylen (PE) - Bestimmung der
Widerstandsfähigkeit gegen Innendruck nach Abquetschen
Systèmes de canalisations en plastique - Tubes en polyéthylène (PE) - Méthode d'essai
de résistance à la pression interne après application de l'écrasement
Ta slovenski standard je istoveten z: prEN 12106
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2024
ICS 23.040.20 Will supersede EN 12106:1997
English Version
Plastics piping systems - Polyethylene (PE), crosslinked
polyethylene (PE-X) and unplasticized polyamide (PA-U)
pipes - Test method for the resistance to internal pressure
after application of squeeze-off
Systèmes de canalisations en plastique - Tubes en Kunststoff-Rohrleitungssysteme - Rohre aus
polyéthylène (PE) - Méthode d'essai de résistance à la Polyethylen (PE) - Bestimmung der
pression interne après application de l'écrasement Widerstandsfähigkeit gegen Innendruck nach
Abquetschen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 155.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12106:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
3.1 Terms related to geometry . 4
3.2 Terms related to squeeze-off procedure . 5
4 Principle . 5
5 Apparatus . 6
6 Test pieces . 7
6.1 General. 7
6.2 Preparation . 7
6.3 Number . 7
7 Procedure . 8
8 Test report . 9
Bibliography . 11

European foreword
This document (prEN 12106:2024) has been prepared by Technical Committee CEN/TC 155 “Plastics
piping systems and ducting systems”, the secretariat of which is held by NEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 12106:1997.
— PA, PE-X and PE 100-RC materials with test parameters have been added;
— ISO 1167-1 and ISO 1167-2 are referenced for the pipe hydrostatic pressure test in place of EN 921
which has been withdrawn.
This document is one of a series of standards on test methods which support System Standards for
plastics piping systems and ducting systems.
The material-dependent parameters and/or performance requirements are incorporated in the System
Standard(s) concerned.
1 Scope
This document specifies a method to determine the resistance to internal pressure of polyethylene (PE),
crosslinked polyethylene (PE-X) and unplasticized (PA-U) pipes to verify the condition of the pipe after
being subjected to a squeeze-off procedure.
The equipment and procedure used to prepare the test samples and test parameters are given in this
document, i.e.:
a) the diameter and series of the pipe to be tested (see 6.1);
b) the number of test pieces (see 6.2);
c) the parameters for the hydrostatic strength tests (see 7.6)
NOTE 1 Further information on the squeeze-off procedure is given in EN 12007-2 and ISO/TS 10839 for
polyethylene, and CEN/TS 12007-6 for unplasticized polyamide.
NOTE 2 The squeeze-off procedure is specified to limit gas flow to allow maintenance, repair or to make network
connections. Squeeze-off is used in an emergency for pipes carrying other media.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN ISO 1167-1, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination
of the resistance to internal pressure — Part 1: General method (ISO 1167-1)
EN ISO 1167-2, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination
of the resistance to internal pressure — Part 2: Preparation of pipe test pieces (ISO 1167-2)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 472 and ISO 1043-1 and the
following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1 Terms related to geometry
3.1.1
nominal size
DN
numerical designation of the size of a component, which is a convenient round number approximately
equal to the manufacturing dimension
Note 1 to entry: It is expressed in millimetres (mm).
3.1.2
nominal size
DN/OD
nominal size (3.1.1), related to the outside diameter
3.1.3
nominal outside diameter
d
n
specified outside diameter assigned to a nominal size DN/OD (3.1.2)
Note 1 to entry: It is expressed in millimetres (mm).
3.1.4
mean outside diameter
d
em
value of the measurement of the outer circumference of a pipe or spigot end of a fitting in any
...