SIST EN 1447:2009+A1:2010

Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes - Determination of long-term resistance to internal pressure

This standard specifies a method for determining the time to failure of glass-reinforced thermosetting plastics (GRP) pipes under internal hydrostatic pressure at a specified temperature. The external environment can be air or water.
NOTE   For other internal or external environments the referring standard should specify any additional requirement.

Kunststoff-Rohrleitungssysteme für die Renovierung erdverlegter Wasserversorgungsnetze - Teil 1: Allgemeines (ISO 11298-1:2010)

Diese Norm legt ein Verfahren zur Bestimmung der Versagenszeit von Rohren aus glasfaserverstärkten duroplastischen
Kunststoffen (GFK) unter hydrostatischem Innendruck bei einer festgelegten Temperatur fest. Die
äußere Umgebung kann Wasser oder Luft sein.
ANMERKUNG Für andere innere oder äußere Umgebungsbedingungen sollte die bezugnehmende Norm zusätzliche
Anforderungen enthalten.

Systèmes de canalisations en plastique - Tubes en plastiques thermodurcissables renforcés de verre (PRV) - Détermination de la résistance à long terme à la pression interne

La présente Norme spécifie une méthode pour la détermination du temps à la rupture de tubes en plastiques
thermodurcissables renforcés de verre (PRV). Il est admis que l’environnement externe puisse être constitué d’eau
ou d’air.
NOTE Pour d’autres environnements internes ou externes, il convient d’indiquer toute exigence supplémentaire
dans la norme en référence.

Cevni sistemi iz polimernih materialov - Cevi iz duromernih materialov, ojačenih s steklenimi vlakni (GRP) - Določanje dolgoročne odpornosti proti notranjemu tlaku (vključno z dopolnilom A1)

Ta mednarodni standard opredeljuje metodo določevanja časa odpovedi cevi iz duromernih materialov, ojačenih s steklenimi vlakni (GRP) pod notranjim hidrostatičnim tlakom pri določeni temperaturi. Zunanje okolje je lahko zrak ali voda.

General Information

• Status: Published
• Publication Date: 04-Nov-2010
• ICS: 23.040.20 - Plastics pipes
• ICS: 83.120 - Reinforced plastics
• Technical Committee: PCV - Plastic pipes, fittings and valves
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 25-Oct-2010
• Due Date: 30-Dec-2010
• Completion Date: 05-Nov-2010
• Ref Project: EN 1447:2009+A1:2010 - Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes - Determination of long-term resistance to internal pressure

Relations

• Consolidates: SIST EN 1447:2009 - Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes - Determination of long-term resistance to internal pressure
• Effective Date: 01-Dec-2010
• Consolidates: SIST EN 1447:2009/kFprA1:2010 - Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes - Determination of long-term resistance to internal pressure
• Effective Date: 01-Dec-2010

Overview

SIST EN 1447:2009+A1:2010 is a European standard developed by CEN that specifies a standardized method for determining the long-term resistance of Glass-Reinforced Thermosetting Plastics (GRP) pipes to internal hydrostatic pressure. This method is applicable for pipes exposed to internal pressure at specified temperatures, with external environments of air or water. The standard is essential for ensuring the reliability and safety of GRP piping systems used in various industrial and infrastructure applications where long-term internal pressure resistance is critical.

The standard defines key parameters such as test conditions, apparatus requirements, failure detection methods, and reporting criteria. It supports manufacturers, testing laboratories, and engineers in evaluating the long-term durability of GRP pipes under controlled test conditions.

Key Topics

• Test Methodology
  The method involves subjecting a pipe specimen to a constant internal hydrostatic pressure at a specified temperature until failure occurs. Tests may vary in end loading conditions-either with or without hydrostatic end thrust-which influence the pipe’s stress state and test results.

• Failure Detection
  Failure of the test piece is identified by:

  • Bursting (rupture of the pipe wall with immediate loss of liquid)
  • Leaking (continuous liquid loss detectable visually or by pressure drop)
  • Weeping (minor liquid passage detected visually or via electrical resistance measurements in air environments)

• Test Apparatus and Requirements

  • Precision dimensional measurement devices (±1.0% accuracy)
  • End sealing devices capable of inducing specified stress states
  • Controlled environmental chambers for water or air
  • Pressure systems maintaining constant pressure with automatic adjustment (recommended)
  • Optional strain gauges and electrical resistance meters for enhanced failure detection

• Test Specimens
  Full sections of GRP pipe with smooth, perpendicular cut ends are conditioned at test temperature before testing. The number and free length of specimens conform to requirements in the referring standards.

• Test Report Contents
  Detailed reporting is mandatory, including identification of pipes, dimensions, pressure conditions, failure mode, position of failure, strain data (if any), and environmental conditions.

Applications

SIST EN 1447:2009+A1:2010 is crucial for ensuring the structural integrity and safe operation of GRP piping systems used in:

• Drinking water and wastewater networks
• Industrial chemical transport pipelines
• Renovation and maintenance of buried water supply systems
• Infrastructure projects requiring durable pressure-resistant plastic piping solutions

This standard assists manufacturers in product development and certification, ensures compliance with regulatory requirements, and supports engineers in selecting suitable piping materials for long-term pressure endurance.

By adopting this standardized testing approach, stakeholders can predict pipe performance over extended service lives, minimize risks of premature failure, and optimize maintenance schedules.

Related Standards

• ISO 10928: Methods for regression analysis to establish long-term pressure versus time-to-failure relationships for GRP pipes. EN 1447 complements ISO 10928 by specifying test methods, while ISO 10928 focuses on data analysis and lifetime predictions.

• EN 11298-1: Covers plastic piping systems used in the renovation of underground water supply networks, providing a broader context for GRP pipe standards.

• Other CEN standards on plastics piping and ducting systems that specify material parameters and system requirements, to be referenced alongside EN 1447 for comprehensive quality assurance.

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Keywords: EN 1447, GRP pipes, Glass-Reinforced Thermosetting Plastics, long-term resistance, internal hydrostatic pressure, pipe testing standard, failure detection, plastics piping systems, CEN standard, pressure testing method, hydrostatic pipe testing, strain measurement in pipes, pipe durability testing.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kunststoff-Rohrleitungssysteme für die Renovierung erdverlegter Wasserversorgungsnetze - Teil 1: Allgemeines (ISO 11298-1:2010)Systèmes de canalisations en plastique - Tubes en plastiques thermodurcissables renforcés de verre (PRV) - Détermination de la résistance à long terme à la pression internePlastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes - Determination of long-term resistance to internal pressure83.120Reinforced plastics23.040.20Cevi iz polimernih materialovPlastics pipesICS:Ta slovenski standard je istoveten z:EN 1447:2009+A1:2010SIST EN 1447:2009+A1:2010en,fr,de01-december-2010SIST EN 1447:2009+A1:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1447:2009+A1
October 2010 ICS 23.040.20 Supersedes EN 1447:2009 English Version
Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes - Determination of long-term resistance to internal pressure
Systèmes de canalisations en plastique - Tubes en plastiques thermodurcissables renforcés de verre (PRV) - Détermination de la résistance à long terme à la pression interne
Kunststoff-Rohrleitungssysteme - Rohre aus glasfaserverstärkten duroplastischen Kunststoffen (GFK) - Bestimmung der Langzeit-Widerstandsfähigkeit gegen Innendruck This European Standard was approved by CEN on 10 February 2009 and includes Amendment 1 approved by CEN on 14 September 2010.
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, Croatia, 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:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1447:2009+A1:2010: ESIST EN 1447:2009+A1:2010

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document includes Amendment 1, approved by CEN on 2010-09-14. This document supersedes !EN 1447:2009". The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ". The main modifications are: − Correction of the valid failure zone limits and the use and reporting of data outside the valid zone.
The material-dependent parameters and/or performance requirements are incorporated in the referring standard. This standard is one of a series of standards on test methods which support System Standards for plastics piping systems and ducting systems. 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, Croatia, 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. SIST EN 1447:2009+A1:2010

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