ISO 13056:2011

Plastics piping systems - Pressure systems for hot and cold water - Test method for leaktightness under vacuum

This International Standard specifies a method for testing the leaktightness under vacuum of joints for thermoplastics piping systems. It is applicable to piping systems based on thermoplastics pipes intended to be used in hot and cold water pressure applications.

Systèmes de canalisations en plastique — Systèmes pour installation d'eau chaude et froide sous pression — Méthode d'essai de l'étanchéité sous vide

La présente Norme internationale spécifie une méthode d'essai de l'étanchéité sous vide des assemblages pour les systèmes de canalisations thermoplastiques. Elle s'applique aux systèmes de canalisations constitués de tubes thermoplastiques destinés à être utilisés pour des installations sous pression d'eau chaude et froide.

General Information

• Status: Published
• Publication Date: 27-Oct-2011
• ICS: 23.040.01 - Pipeline components and pipelines in general
• ICS: 91.140.60 - Water supply systems
• Technical Committee: ISO/TC 138/SC 5 - General properties of pipes, fittings and valves of plastic materials and their accessories -- Test methods and basic specifications
• Drafting Committee: ISO/TC 138/SC 5 - General properties of pipes, fittings and valves of plastic materials and their accessories -- Test methods and basic specifications
• Current Stage: 9093 - International Standard confirmed
• Start Date: 16-Jun-2022
• Completion Date: 13-Dec-2025

Overview

ISO 13056:2011 is an international standard that defines a test method for leaktightness under vacuum specifically for joints in thermoplastics piping systems. These piping systems are designed for pressure applications involving hot and cold water. The standard outlines a precise testing procedure to verify that joints in thermoplastic pipes maintain airtightness when subjected to a partial vacuum, ensuring system integrity and safety in plumbing and water distribution installations.

Key Topics

• Scope: The standard applies to plastic pipes made from thermoplastics, focusing on joints in pressure systems for both hot and cold water.
• Test Principle: A test assembly with pipe joints is subjected to a controlled partial vacuum. The joints are monitored for any increase in pressure, indicating leakage.
• Test Parameters:
  • Number of test pieces as specified by the referring standard
  • Test temperature and pressure levels
  • Test duration with failure criteria based on pressure increase
• Equipment:
  • Vacuum pump capable of generating the required vacuum level
  • Precise vacuum pressure measurement devices (accuracy ±0.01 bar)
  • Shut-off valves to isolate the test assembly
  • Thermometers for temperature control
  • End-sealing devices to properly seal non-jointed pipe ends
• Test Procedure:
  • Condition test pieces to specified temperature (typically 23 ± 5 °C)
  • Evacuate test assembly to test pressure and isolate from vacuum source
  • Monitor pressure over the test duration to detect leaks or pressure rise
• Test Report Requirements: Includes references to ISO 13056, identification of components, test conditions, results, and any relevant observations affecting outcomes.

Applications

ISO 13056:2011 is essential for manufacturers, installers, and quality assurance teams involved in the production and testing of thermoplastic piping systems used in:

• Residential and commercial plumbing systems transporting hot and cold potable water
• Heating and cooling systems with pressure requirements
• Industrial water supply piping where leak-tight integrity is critical
• Ensuring compliance with regulatory standards for plastic pipe installations

This standard ensures that pipe joints will perform reliably under vacuum conditions, contributing to long-term system durability and preventing costly water leaks and damage.

Related Standards

• ISO 1133 – Plastics – Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics
• ISO 1167 – Thermoplastics pipes – Determination of the resistance to internal pressure
• ISO 11922 – Thermoplastics pipes – Determination of bending stiffness and flexural modulus
• Other ISO/TC 138 standards related to plastics pipes, fittings, valves, and their testing methods

Practical Value

Implementing ISO 13056:2011 testing methods helps manufacturers guarantee product quality by detecting leaks early in the production process. For installers and end-users, adherence to this standard assures safe operation under pressure conditions in water supply systems. Accurate leaktightness testing also supports regulatory compliance, certification processes, and contributes to water conservation by preventing undetected leaks.

Keywords: ISO 13056, thermoplastics piping systems, leaktightness test, vacuum test method, hot water pipes, cold water pipes, pressure systems, plastic pipe joints, water supply safety, pipe testing standards

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 13056
First edition
2011-11-01
Plastics piping systems — Pressure
systems for hot and cold water — Test
method for leaktightness under vacuum
Systèmes de canalisations en plastique — Systèmes pour installation
d’eau chaude et froide sous pression — Méthode d’essai de l’étanchéité
sous vide
Reference number
©
ISO 2011
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 either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2011 – All rights reserved

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 13056 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.
INTERNATIONAL STANDARD ISO 13056:2011(E)
Plastics piping systems — Pressure systems for hot and cold
water — Test method for leaktightness under vacuum
1 Scope
This International Standard specifies a method for testing the leaktightness under vacuum of joints for
thermoplastics piping systems.
It is applicable to piping systems based on thermoplastics pipes intended to be used in hot and cold water
pressure applications.
2 Principle
An assembly of pipes and fittings is subjected to partial vacuum for a specific period during which the joints are
inspected for airtightness.
It is assumed that the following test parameters are set by the standard making refer
...

NORME ISO
INTERNATIONALE 13056
Première édition
2011-11-01
Systèmes de canalisations en
plastique — Systèmes pour installation
d’eau chaude et froide sous pression —
Méthode d’essai de l’étanchéité sous vide
Plastics piping systems — Pressure systems for hot and cold water —
Test method for leaktightness under vacuum
Numéro de référence
©
ISO 2011
DOCUMENT PROTÉGÉ PAR COPYRIGHT
Droits de reproduction réservés. Sauf prescription différente, aucune partie de cette publication ne peut être reproduite ni utilisée sous
quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l’accord écrit
de l’ISO à l’adresse ci-après ou du comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Publié en Suisse
ii © ISO 2011 – Tous droits réservés

Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale d’organismes nationaux de
normalisation (comités membres de l’ISO). L’élaboration des Normes internationales est en général confiée aux
comités techniques de l’ISO. Chaque comité membre intéressé par une étude a le droit de faire partie du comité
technique créé à cet effet. Les organisations internationales, gouvernementales et non gouvernementales,
en liaison avec l’ISO participent également aux travaux. L’ISO collabore étroitement avec la Commission
électrotechnique internationale (CEI) en ce qui concerne la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI,
Partie 2.
La tâche principale des comités techniques est d’élaborer les Normes internationales. Les projets de Normes
internationales adoptés par les comités techniques sont soumis aux comités membres pour vote. Leur
publication comme Normes internationales requiert l’approbation de 75 % au moins des comités membres
votants.
L’attention est appelée sur le fait que certains des éléments du présent document peuvent faire l’objet de droits
de propriété intellectuelle ou de droits analogues. L’ISO ne saurait être tenue pour responsable de ne pas avoir
identifié de tels droits de propriété et averti de leur existence.
L’ISO 13056 a été élaborée par le comité technique ISO/TC 138, Tubes, raccords et robinetterie en matières
plastiques pour le transport des fluides, sous-comité SC 5, Propriétés générales des tubes, raccords et
robinetteries en matières plastiques et leurs accessoires — Méthodes d’essais et spécifications de base.
NORME INTERNATIONALE ISO 13056:2011(F)
Systèmes de canalisations en plastique — Systèmes pour
installation d’eau chaude et froide sous pression — Méthode
d’essai de l’étanchéité sous vide
1 Domaine d’application
La présente Norme internationale spécifie une méthode d’essai de l’étanchéité sous vide des assemblages
pour les systèmes de canalisations thermoplastiques.
Elle s’applique aux systèmes de canalisations constitués de tubes thermoplastiques destinés à être utilisés
pour des installations sous pression d’eau chaude et froide.
2 Principe
Un montage de tubes et de raccords est soumis à un vide partiel pendant une durée spécifiée au cours de
laquelle on vérifie l’étanchéité à l’air des assemblages.
Il est entendu que les paramè
...