SIST EN ISO 23856:2021
(Main)Plastics piping systems for pressure and non-pressure water supply, drainage or sewerage - Glass-reinforced thermosetting plastics (GRP) systems based on unsaturated polyester (UP) resin (ISO 23856:2021)
Plastics piping systems for pressure and non-pressure water supply, drainage or sewerage - Glass-reinforced thermosetting plastics (GRP) systems based on unsaturated polyester (UP) resin (ISO 23856:2021)
This document specifies the properties of piping system components made from glass-reinforced thermosetting plastics (GRP) based on unsaturated polyester resin (UP). It is suited for all types of water supply, drainage and sewerage with or without pressure. Types of water supply include, but are not limited to, raw water, irrigation, cooling water, potable water, salt water, sea water, penstocks in power plants, processing plants and other water-based applications. This document is applicable to GRP UP piping systems, with flexible or rigid joints with or without end thrust load-bearing capability, primarily intended for use in direct buried installations.
Kunststoff-Rohrleitungssysteme für Wasserversorgung, Entwässerungssysteme und Abwasserleitungen mit und ohne Druck - Glasfaserverstärkte duroplastische Kunststoffe (GFK) auf der Basis von ungesättigtem Polyesterharz (UP) (ISO 23856:2021)
Dieses Dokument legt die Eigenschaften von Rohrleitungskomponenten aus glasfaserverstärkten duroplastischen Kunststoffen (GFK, en: glass-reinforced thermosetting plastics) auf der Basis von ungesättigtem Polyesterharz (UP, en: unsaturated polyester resin) fest. Es eignet sich für alle Wasserversorgungs , Entwässerungs und Abwassersysteme, die unter Druck oder drucklos betrieben werden. Zu den Wasserversorgungssystemen gehören unter anderem Rohrleitungssysteme für Rohwasser, Bewässerung, Kühlwasser, Trinkwasser, Salzwasser, Meerwasser, Druckstollen in Kraftwerken, Verarbeitungsanlagen und andere wasserbasierte Anwendungen. Dieses Dokument gilt für GFK UP Rohr-leitungssysteme mit flexiblen oder starren Rohrverbindungen mit oder ohne Axialschubtragfähigkeit, die in erster Linie für den Einsatz in direkt im Erdreich verlegten Rohrleitungssystemen bestimmt sind.
ANMERKUNG 1 Für die Anwendung dieses Dokuments schließt der Begriff Polyesterharz (UP) auch Vinylesterharze (VE) mit ein.
ANMERKUNG 2 Rohrleitungssysteme, die diesem Dokument entsprechen, können auch für nicht erdverlegte Anlagen eingesetzt werden, sofern der Einfluss der Umgebung und der Rohrauflager bei der Planung und Auslegung der Rohre, Formstücke und Verbindungen berücksichtigt wird.
ANMERKUNG 3 Dieses Dokument kann auch für andere Rohreinbauarten gelten, wie z. B. Schlauchlining zur Sanierung bestehender Rohre.
ANMERKUNG 4 Auf dieses Dokument wird auch in ISO 25780 Bezug genommen, die wiederum Anforderungen an GFK Rohre für den Einbau im Rohrvortrieb festlegt.
Die Anforderungen an die Auslegung für den hydrostatischen Druck von Rohren, auf die sich dieses Dokument bezieht, erfüllen die Anforderungen von ISO/TS 20656 1 und das in ISO 2394 und EN 1990 beschriebene allgemeine Prinzip der Zuverlässigkeit von Bauwerken. Diese Internationalen Normen geben Verfahren zur Harmonisierung der Planungs und Auslegungspraktiken vor und befassen sich mit der Ausfall¬wahrscheinlichkeit sowie mit den möglichen Folgen von Ausfällen. Die Planungs und Auslegungspraktiken basieren auf einem Teilsicherheitskonzept sowie auf einem technikbezogenen Risikomanagement.
Dieses Dokument gilt für Rundrohre, Formstücke und deren Verbindungen in den Nennweiten DN 50 bis DN 4 000, die für den Transport von Wasser bei normalen Betriebsbedingungen, sowohl drucklos als auch unter Druck bestimmt sind.
Systèmes de canalisations en matières plastiques pour l'alimentation en eau, les branchements et les collecteurs d'assainissement avec ou sans pression - Systèmes en plastiques thermodurcissables renforcés de verre (PRV) à base de résine de polyester non saturé (UP) (ISO 23856:2021)
Le présent document spécifie les propriétés des composants d'un système de canalisations en plastique thermodurcissable renforcé de verre (PRV) à base de résine de polyester non saturé (UP). Il convient à tous les types d'alimentation en eau, de drainage et d'assainissement avec ou sans pression. Les types d'alimentation en eau comprennent, mais sans s'y limiter, l'eau brute, l'irrigation, l'eau de refroidissement, l'eau potable, l'eau salée, l'eau de mer, les conduites forcées des centrales électriques, les usines de traitement et autres applications à base d'eau. Le présent document s'applique aux systèmes de canalisations en PRV UP, avec assemblages flexibles ou rigides avec ou sans capacité de résistance aux effets de fond, principalement destinés à être utilisés dans des installations enterrées directes.
NOTE 1 Pour les besoins du présent document, le terme résine polyester (UP) comprend également les résines vinyl-ester (VE).
NOTE 2 Les systèmes de canalisations conformes au présent document peuvent également être utilisés pour des applications non-enterrées, sous réserve que l'influence de l'environnement et des supports soit prise en considération dans la conception des tubes, raccords et assemblages.
NOTE 3 Le présent document est également applicable à d'autres installations, tel que la réhabilitation par tubage glissant de canalisations existantes.
NOTE 4 L'ISO 10467 et l'ISO 10639, qui sont remplacées par le présent document, sont également référencées dans l'ISO 25780, qui spécifie les exigences pour les tubes en PRV utilisés pour l'installation par fonçage.
Les exigences relatives à la conception sous pression hydrostatique des tubes faisant référence au présent document sont conformes aux exigences de l'ISO/TS 20656‑1 et au principe général de fiabilité des structures détaillé dans l'ISO 2394 et l'EN 1990. Ces Normes internationales fournissent des procédures pour l'harmonisation des pratiques de conception et traitent de la probabilité de défaillance, ainsi que des conséquences possibles des défaillances. Les pratiques de conception sont basées sur un concept de facteur de sécurité partiel, ainsi que sur l'ingénierie de gestion des risques.
Le présent document s'applique aux tubes circulaires, raccords et leurs assemblages de dimensions nominales allant de DN 50 à DN 4000 destinés à être utilisés pour le transport d'eau, les branchements et collecteurs d’assainissement dans des conditions de service normales, avec ou sans pression.
Cevni sistemi iz polimernih materialov za odvodnjavanje ali kanalizacijo in oskrbo z vodo, s tlakom in brez njega - S steklenimi vlakni ojačeni duromerni materiali (GRP) na osnovi nenasičene poliestrske smole (UP) (ISO 23856:2021)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 23856:2021
01-september-2021
Nadomešča:
SIST EN 14364:2013
SIST EN 1796:2013
Cevni sistemi iz polimernih materialov za odvodnjavanje ali kanalizacijo in oskrbo
z vodo, s tlakom in brez njega - S steklenimi vlakni ojačeni duromerni materiali
(GRP) na osnovi nenasičene poliestrske smole (UP) (ISO 23856:2021)
Plastics piping systems for pressure and non-pressure water supply, drainage or
sewerage - Glass-reinforced thermosetting plastics (GRP) systems based on
unsaturated polyester (UP) resin (ISO 23856:2021)
Kunststoff-Rohrleitungssysteme für Wasserversorgung, Entwässerungssysteme und
Abwasserleitungen mit und ohne Druck - Glasfaserverstärkte duroplastische Kunststoffe
(GFK) auf der Basis von ungesättigtem Polyesterharz (UP) (ISO 23856:2021)
Systèmes de canalisations en matières plastiques pour l'alimentation en eau, les
branchements et les collecteurs d'assainissement avec ou sans pression - Systèmes en
plastiques thermodurcissables renforcés de verre (PRV) à base de résine de polyester
non saturé (UP) (ISO 23856:2021)
Ta slovenski standard je istoveten z: EN ISO 23856:2021
ICS:
23.040.05 Cevovodi za zunanje Pipeline and its parts for
sisteme za odpadno vodo in external sewage systems
njihovi deli
83.120 Ojačani polimeri Reinforced plastics
91.140.60 Sistemi za oskrbo z vodo Water supply systems
SIST EN ISO 23856:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN ISO 23856:2021
---------------------- Page: 2 ----------------------
SIST EN ISO 23856:2021
EN ISO 23856
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2021
EUROPÄISCHE NORM
ICS 23.040.20; 91.140.80; 93.030 Supersedes EN 1796:2013, EN 14364:2013
English Version
Plastics piping systems for pressure and non-pressure
water supply, drainage or sewerage - Glass-reinforced
thermosetting plastics (GRP) systems based on
unsaturated polyester (UP) resin (ISO 23856:2021)
Systèmes de canalisations en matières plastiques pour Kunststoff-Rohrleitungssysteme für
l'alimentation en eau, les branchements et les Wasserversorgung, Entwässerungssysteme und
collecteurs d'assainissement avec ou sans pression - Abwasserleitungen mit und ohne Druck -
Systèmes en plastiques thermodurcissables renforcés Glasfaserverstärkte duroplastische Kunststoffe (GFK)
de verre (PRV) à base de résine de polyester non auf der Basis von ungesättigtem Polyesterharz (UP)
saturé (UP) (ISO 23856:2021) (ISO 23856:2021)
This European Standard was approved by CEN on 16 May 2021.
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-CENELEC 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-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, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 23856:2021 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 23856:2021
EN ISO 23856:2021 (E)
Contents Page
European foreword . 3
2
---------------------- Page: 4 ----------------------
SIST EN ISO 23856:2021
EN ISO 23856:2021 (E)
European foreword
This document (EN ISO 23856:2021) 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 December 2021, and conflicting national standards
shall be withdrawn at the latest by December 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1796:2013 and EN 14364:2013.
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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 23856:2021 has been approved by CEN as EN ISO 23856:2021 without any modification.
3
---------------------- Page: 5 ----------------------
SIST EN ISO 23856:2021
---------------------- Page: 6 ----------------------
SIST EN ISO 23856:2021
INTERNATIONAL ISO
STANDARD 23856
First edition
2021-06
Plastics piping systems for pressure
and non-pressure water supply,
drainage or sewerage — Glass-
reinforced thermosetting plastics
(GRP) systems based on unsaturated
polyester (UP) resin
Systèmes de canalisations en matières plastiques pour l'alimentation
en eau, les branchements et les collecteurs d'assainissement avec ou
sans pression — Systèmes en plastiques thermodurcissables renforcés
de verre (PRV) à base de résine de polyester non saturé (UP)
Reference number
ISO 23856:2021(E)
©
ISO 2021
---------------------- Page: 7 ----------------------
SIST EN ISO 23856:2021
ISO 23856:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 23856:2021
ISO 23856:2021(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 3
4 General .12
4.1 Classification .12
4.1.1 Categories .12
4.1.2 Nominal size .12
4.1.3 Nominal stiffness .12
4.1.4 Nominal pressure .12
4.2 Materials .13
4.2.1 General.13
4.2.2 Reinforcement .13
4.2.3 Resin .14
4.2.4 Aggregates and fillers .14
4.2.5 Thermoplastics liners .14
4.2.6 Elastomers .14
4.2.7 Metals .14
4.3 Wall construction .14
4.3.1 Inner layer .14
4.3.2 Structural layer .14
4.3.3 Outer layer .15
4.4 Appearance .15
4.5 Reference conditions for testing .15
4.5.1 Temperature .15
4.5.2 Properties of water for testing .15
4.5.3 Loading conditions . .15
4.5.4 Conditioning .15
4.5.5 Measurement of dimensions .15
4.6 Elapsed time, x, for determination of long-term properties .16
4.7 Joints .16
4.7.1 General.16
4.7.2 Types of joint .16
4.7.3 Flexibility of the joint .16
4.7.4 Sealing ring .16
4.7.5 Adhesives . .17
4.8 Effect on water quality .17
4.9 Assessment of conformity .17
5 Pipes .17
5.1 Type of pipes .17
5.2 Geometrical characteristics .17
5.2.1 Diameter .17
5.2.2 Wall thickness .23
5.2.3 Length.23
5.3 Mechanical characteristics.24
5.3.1 Initial ring stiffness .24
5.3.2 Long-term creep ring stiffness .24
5.3.3 Initial resistance to failure in a deflected condition .25
5.3.4 Ultimate long-term resistance to failure in a deflected condition.27
5.3.5 Initial longitudinal tensile strength .28
5.3.6 Initial design and failure pressures for pressure pipes .30
© ISO 2021 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 23856:2021
ISO 23856:2021(E)
5.3.7 Long-term failure pressure .32
5.4 Resistance to chemical attack .33
5.4.1 General.33
5.4.2 Procedure using failure points .33
5.4.3 Procedure using specified levels of strain.34
5.4.4 Test piece length.35
5.4.5 Test solution.35
5.5 Marking .35
6 Fittings .36
6.1 All types .36
6.1.1 General.36
6.1.2 Diameter series .36
6.1.3 Nominal pressure (PN) . .36
6.1.4 Nominal stiffness (SN) .36
6.1.5 Fitting type .36
6.1.6 Mechanical characteristics of fittings .36
6.1.7 Installed leaktightness of fittings .37
6.1.8 Dimensions .37
6.2 Bends .37
6.2.1 Classification of bends .37
6.2.2 Dimensions and tolerances of bends .38
6.3 Branches .41
6.3.1 Classification of branches.41
6.3.2 Dimensions and tolerances of branches .41
6.4 Reducers .44
6.4.1 Classification of reducers .44
6.4.2 Dimensions and tolerances of reducers .44
6.5 Non-pressure saddles .46
6.5.1 Classification of saddles .46
6.5.2 Dimensions of saddles and associated tolerances .47
6.6 Flanges .47
6.6.1 Classification of flanges .47
6.6.2 Dimensions and tolerances for adaptors .48
6.7 Marking .49
7 Joints .50
7.1 General .50
7.1.1 Interchangeability . . .50
7.1.2 Requirements .50
7.1.3 Test temperature .51
7.1.4 Non-pressure joints .51
7.1.5 Dimensions .51
7.2 Flexible joints .51
7.2.1 General.51
7.2.2 Maximum allowable draw .51
7.2.3 Maximum allowable angular deflection .51
7.2.4 Flexible non-end-load-bearing joints with elastomeric sealing rings .51
7.2.5 Flexible end-load-bearing joints with elastomeric sealing rings .52
7.3 Rigid joints .52
7.3.1 Wrapped or cemented . .52
7.3.2 Bolted flange joints .53
7.4 Marking .54
Annex A (normative) Principles used to establish the design requirements based on
regression testing and consideration of the variability of the product.55
Bibliography .60
iv © ISO 2021 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 23856:2021
ISO 23856:2021(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves
for the transport of fluids, Subcommittee SC 6, Reinforced plastics pipes and fittings for all applications,
in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/
TC 155, Plastics piping systems and ducting systems, in accordance with the Agreement on technical
cooperation between ISO and CEN (Vienna Agreement).
This first edition cancels and replaces ISO 10639:2017 (second edition) and ISO 10467:2018 (second
edition), which have been technically revised.
The main changes compared to the previous editions are as follows:
— documents combined;
— editorial changes throughout.
Any feedback or questions on this document should be directed to the user’s national standards body. A
comple
...
SLOVENSKI STANDARD
oSIST prEN ISO 23856:2019
01-september-2019
Cevni sistemi iz polimernih materialov za odvodnjavanje ali kanalizacijo in oskrbo
z vodo, s tlakom in brez njega - S steklenimi vlakni ojačeni duromerni materiali
(GRP) na osnovi nenasičene poliestrske smole (UP) (ISO/DIS 23856:2019)
Plastics piping systems for pressure and non-pressure water supply, drainage or
sewerage - Glass-reinforced thermosetting plastics (GRP) systems based on
unsaturated polyester (UP) resin (ISO/DIS 23856:2019)
Systèmes de canalisation en matières plastiques pour les branchements et les
collecteurs d'assainissement avec ou sans pression - Systèmes en plastiques
thermodurcissables renforcés de verre (PRV) à base de résine de polyester non saturé
(UP) (ISO/DIS 23856:2019)
Ta slovenski standard je istoveten z: prEN ISO 23856
ICS:
23.040.05 Cevovodi za zunanje Pipeline and its parts for
sisteme za odpadno vodo in external sewage systems
njihovi deli
83.120 Ojačani polimeri Reinforced plastics
91.140.80 Drenažni sistemi Drainage systems
93.030 Zunanji sistemi za odpadno External sewage systems
vodo
oSIST prEN ISO 23856:2019 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 23856:2019
---------------------- Page: 2 ----------------------
oSIST prEN ISO 23856:2019
DRAFT INTERNATIONAL STANDARD
ISO/DIS 23856
ISO/TC 138/SC 6 Secretariat: ASI
Voting begins on: Voting terminates on:
2019-06-13 2019-09-05
Plastics piping systems for pressure and non-pressure
water supply, drainage or sewerage — Glass-reinforced
thermosetting plastics (GRP) systems based on
unsaturated polyester (UP) resin
ICS: 23.040.20; 91.140.80; 93.030
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 23856:2019(E)
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. ISO 2019
---------------------- Page: 3 ----------------------
oSIST prEN ISO 23856:2019
ISO/DIS 23856:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 23856:2019
ISO/DIS 23856:2019(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 3
4 General .12
4.1 Classification .12
4.1.1 Categories .12
4.1.2 Nominal size .12
4.1.3 Nominal stiffness .12
4.1.4 Nominal pressure .13
4.2 Materials .13
4.2.1 General.13
4.2.2 Reinforcement .14
4.2.3 Resin .14
4.2.4 Aggregates and fillers .14
4.2.5 Thermoplastics liners .14
4.2.6 Elastomers .14
4.2.7 Metals .14
4.3 Wall construction .15
4.3.1 Inner layer .15
4.3.2 Structural layer .15
4.3.3 Outer layer .15
4.4 Appearance .15
4.5 Reference conditions for testing .15
4.5.1 Temperature .15
4.5.2 Properties of water for testing .15
4.5.3 Loading conditions . .16
4.5.4 Conditioning .16
4.5.5 Measurement of dimensions .16
4.6 Elapsed time, x, for determination of long-term properties .16
4.7 Joints .16
4.7.1 General.16
4.7.2 Types of joint .16
4.7.3 Flexibility of the joint .16
4.7.4 Sealing ring .17
4.7.5 Adhesives . .17
4.8 Effect on water quality .17
4.9 Assessment of conf ormity .17
5 Pipes .17
5.1 Type of pipes .17
5.2 Geometrical characteristics .18
5.2.1 Diameter .18
5.2.2 Wall thickness .23
5.2.3 Length.23
5.3 Mechanical characteristics.24
5.3.1 Initial specific ring stiffness .24
5.3.2 Long-term specific ring stiffness under wet conditions .24
5.3.3 Initial resistance to failure in a deflected condition .25
5.3.4 Ultimate long-term resistance to failure in a deflected condition.27
5.3.5 Initial specific longitudinal tensile strength .28
5.3.6 Initial design and failure pressures for pressure pipes .30
© ISO 2019 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 23856:2019
ISO/DIS 23856:2019(E)
5.3.7 Long-term failure pressure .32
5.4 Resistance to strain corrosion .33
5.4.1 General.33
5.4.2 Procedure using failure points .33
5.4.3 Procedure using specified levels of strain.34
5.4.4 Test piece length.35
5.4.5 Test solution.35
5.5 Marking .35
6 Fittings .36
6.1 All types .36
6.1.1 General.36
6.1.2 Diameter series .36
6.1.3 Nominal pressure (PN) . .36
6.1.4 Nominal stiffness (SN) .36
6.1.5 Fitting type .36
6.1.6 Mechanical characteristics of fittings .36
6.1.7 Installed leaktightness of fittings .37
6.1.8 Dimensions .37
6.2 Bends .37
6.2.1 Classification of bends .37
6.2.2 Dimensions and tolerances of bends .38
6.3 Branches .41
6.3.1 Classification of branches.41
6.3.2 Dimensions and tolerances of branches .41
6.4 Reducers .44
6.4.1 Classification of reducers .44
6.4.2 Dimensions and tolerances of reducers .44
6.5 Non pressure saddles .46
6.5.1 Classification of saddles .46
6.5.2 Dimensions of saddles and associated tolerances .47
6.6 Flanges .47
6.6.1 Classification of flanges .47
6.6.2 Dimensions and tolerances for adaptors .48
6.7 Marking .50
7 Joint performance .50
7.1 General .50
7.1.1 Interchangeability . . .50
7.1.2 Requirements .50
7.1.3 Test temperature .51
7.1.4 Non-pressure piping and joints .51
7.1.5 Dimensions .51
7.2 Flexible joints .51
7.2.1 General.51
7.2.2 Maximum allowable draw .51
7.2.3 Maximum allowable angular deflection .51
7.2.4 Flexible non-end-load-bearing joints with elastomeric sealing rings .51
7.2.5 Flexible end-load-bearing joints with elastomeric sealing rings .52
7.3 Rigid joints .52
7.3.1 Wrapped or cemented . .52
7.3.2 Bolted flange joints .53
7.4 Marking .53
Annex A (normative) Principles used to establish the design requirements based on
regression testing and consideration of the variability of the product.55
Bibliography .60
iv © ISO 2019 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 23856:2019
ISO/DIS 23856:2019(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see the following
URL: www .iso .org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for
the transport of fluids, Subcommittee SC 6, Reinforced plastics pipes and fittings for all applications.
© ISO 2019 – All rights reserved v
---------------------- Page: 7 ----------------------
oSIST prEN ISO 23856:2019
ISO/DIS 23856:2019(E)
Introduction
This system standard is a result of merging ISO 10639, ISO 10467 as well as EN 1796 and EN 14364.
As these standards were almost identical, except for the requirement on chemical resistance of sewer
pipes, it was decided that it would be beneficial for the user and make his work easier to refer only to
one document.
vi © ISO 2019 – All rights reserved
---------------------- Page: 8 ----------------------
oSIST prEN ISO 23856:2019
DRAFT INTERNATIONAL STANDARD ISO/DIS 23856:2019(E)
Plastics piping systems for pressure and non-pressure
water supply, drainage or sewerage — Glass-reinforced
thermosetting plastics (GRP) systems based on
unsaturated polyester (UP) resin
1 Scope
This document specifies the properties of piping system components made from glass-reinforced
thermosetting plastics (GRP) based on unsaturated polyester resin (UP). It is suited for all types of
water supply, drainage and sewerage with or without pressure. Types of water supply include, but are
not limited to, raw water, irrigation, cooling water, potable water, salt water, sea water, penstocks in
power plants, processing plants and other water-based applications. This document is applicable to
GRP UP piping systems, with flexible or rigid joints with or without end thrust load-bearing capability,
primarily intended for use in direct buried installations.
NOTE 1 For the purpose of this document, the term polyester resin (UP) also includes vinyl-ester resins (VE).
NOTE 2 Piping systems conforming to this document can also be used for non-buried applications, provided
the influence of the environment and the supports are considered in the design of the pipes, fittings and joints.
NOTE 3 This document can also apply for other installations, such as slip-lining rehabilitation of existing pipes.
NOTE 4 This document is also referenced in ISO 25780, which specifies requirements for GRP-pipes used for
jacking installation.
The requirements for the hydrostatic pressure design of pipes referring to this document meet the
requirements of ISO/TS 20656-1 and the general principle for the reliability of structures detailed in
ISO 2394 and in EN 1990. These International Standards provide procedures for the harmonization of
design practices and address the probability of failure, as well as possible consequences of failures. The
design practices are based on a partial safety factor concept, as well as on risk management engineering.
This document is applicable to pipes, fittings and their joints of nominal sizes from DN 50 to DN 4000
which are intended to be used for the conveyance of water at temperatures up to 50 °C, with or without
pressure. In a pipework system, pipes and fittings of different nominal pressure and stiffness ratings
may be used together. Clause 4 specifies the general aspects of GRP UP piping systems intended to be
used in the field of drainage or sewerage with or without pressure.
Clause 5 specifies the characteristics of pipes made from GRP UP with or without aggregates and/or
fillers. The pipes may have a thermoplastics or thermosetting resin liner. Clause 5 also specifies the test
parameters for the test methods referred to in this document.
Clause 6 specifies the characteristics of fittings made from GRP UP, with or without a thermoplastics or
thermosetting resin liner, intended to be used in the field of drainage and sewerage. Clause 6 specifies
the dimensional and performance requirements for bends, branches, reducers, saddles and flanged
adaptors. Clause 6 covers requirements to prove the structural design of fittings. It is applicable to
fittings made using any of the following techniques:
— fabrication from straight pipes;
— moulding by
1) filament winding,
2) tape winding,
3) contact moulding, and
© ISO 2019 – All rights reserved 1
---------------------- Page: 9 ----------------------
oSIST prEN ISO 23856:2019
ISO/DIS 23856:2019(E)
4) hot or cold compression moulding.
Clause 7 is applicable to the joints to be used in GRP UP piping systems to be used for the conveyance of
surface water and sewerage, both buried and non-buried. It covers requirements to prove the design of
the joint. Clause 7 specifies type test performance requirements for the following joints as a function of
the declared nominal pressure rating of the pipeline or system:
a) socket-and-spigot (including double-socket) joints or mechanical joints;
b) locked socket-and-spigot joints;
c) cemented or wrapped joints;
d) bolted flange joints.
2 Normative references
The following documents are r
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.