prEN ISO 11298-4

SLOVENSKI STANDARD
oSIST prEN ISO 11298-4:2019
01-september-2019
Cevni sistemi iz polimernih materialov za obnovo podzemnih omrežij za oskrbo z
vodo - 4. del: Oblaganje s cevmi, utrjenimi na mestu vgradnje (ISO/DIS 11298-
4:2019)

Plastics piping systems for renovation of underground water supply networks - Part 4:

Wasserversorgungsnetzen - Teil 4: Vor Ort härtendes Schlauchlining (ISO/DIS 11298-

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

Systèmes de canalisation en plastique pour la rénovation des réseaux enterrés d’alimentation en eau —

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

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

3.1 General terms ........................................................................................................................................................................................... 2

3.2 Techniques .................................................................................................................................................................................................. 4

3.3 Characteristics ......................................................................................................................................................................................... 4

3.4 Materials ....................................................................................................................................................................................................... 5

3.5 Product stages ......................................................................................................................................................................................... 5

3.6 Service conditions ................................................................................................................................................................................ 5

4 Symbols and abbreviated terms ........................................................................................................................................................... 5

4.1 Symbols ......................................................................................................................................................................................................... 5

4.2 Abbreviated terms ............................................................................................................................................................................... 7

5 Pipes at the “M” stage ...................................................................................................................................................................................... 7

5.1 Materials ....................................................................................................................................................................................................... 7

5.2 General characteristics ..................................................................................................................................................................... 9

5.3 Material characteristics ................................................................................................................................................................... 9

5.4 Geometric characteristics .............................................................................................................................................................. 9

5.5 Mechanical characteristics............................................................................................................................................................ 9

5.6 Physical characteristics ................................................................................................................................................................... 9

5.7 Jointing ........................................................................................................................................................................................................... 9

5.8 Marking ......................................................................................................................................................................................................... 9

6 Fittings at the “M” stage ..............................................................................................................................................................................10

7 Ancillary components ..................................................................................................................................................................................10

8 Fitness for purpose of the installed lining system at the “I” stage .................................................................10

8.1 Materials ....................................................................................................................................................................................................10

8.2 General characteristics ..................................................................................................................................................................10

8.3 Material characteristics ................................................................................................................................................................11

8.4 Geometric characteristics ...........................................................................................................................................................11

8.4.1 General...................................................................................................................................................................................11

8.4.2 CIPP wall structure .....................................................................................................................................................11

8.4.3 Wall thickness .................................................................................................................................................................11

8.5 Mechanical characteristics.........................................................................................................................................................11

8.5.1 Reference conditions for testing .....................................................................................................................11

8.5.2 Test requirements ........................................................................................................................................................12

8.6 Physical characteristics ................................................................................................................................................................15

8.7 Additional characteristics ...........................................................................................................................................................15

8.7.1 Leak tightness of liner terminations ............................................................................................................15

8.8 Sampling ....................................................................................................................................................................................................16

9 Installation practice .......................................................................................................................................................................................16

9.1 Preparatory work ..............................................................................................................................................................................16

9.2 Storage, handling and transport of pipe components ........................................................................................16

9.3 Equipment ................................................................................................................................................................................................16

9.4 Installation ...............................................................................................................................................................................................17

9.4.1 Environmental precautions .................................................................................................................................17

9.4.2 Installation procedures ...........................................................................................................................................17

9.4.3 Simulated installations ............................................................................................................................................18

9.5 Process-related inspection and testing ...........................................................................................................................18

9.6 Lining termination ............................................................................................................................................................................18

9.7 Reconnections to existing pipeline system ..................................................................................................................18

9.8 Final inspection and testing ......................................................................................................................................................18

9.9 Documentation ....................................................................................................................................................................................18

Annex A (informative) CIPP components and their functions ................................................................................................19

Annex B (normative) Cured-in-place pipes — Determination of short-term flexural properties .....20

Annex C (normative) Cured-in-place pipes —Determinationof long-term flexural modulus

under dry or wet conditions ..................................................................................................................................................................29

Annex D (normative) Cured-in-place pipes — Determination of long-term flexural strength

under dry or wet conditions ..................................................................................................................................................................34

Bibliography .............................................................................................................................................................................................................................37

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

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

Any trade name used in this document is information given for the convenience of users and does not

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

This document was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for

Any feedback or questions on this document should be directed to the user’s national standards body. A

This document is a part of a system standard for plastics piping systems of various materials used for

renovation of existing pipelines in a specified application area. System standards for renovation dealing

— ISO 11296, Plastics piping systems for renovation of underground non-pressure drainage and sewerage

— ISO 11297, Plastics piping systems for renovation of underground drainage and sewerage networks

— ISO 11298, Plastics piping systems for renovation of underground water supply networks (this

— ISO 11299, Plastics piping systems for renovation of underground gas supply networks.

These system standards are distinguished from those for conventionally installed plastics piping

systems because they set requirements for certain characteristics in the “as-installed” condition, after

site processing. This is in addition to specifying requirements for plastics piping system components

and all applicable renovation technique family-related parts, which for water supply networks include

The requirements for any given renovation technique family are given in Part 1 applied in conjunction

with the other relevant part. For example, both ISO 11298-1 and this document together specify

the requirements relating to lining with cured-in-place pipes. For complementary information, see

ISO 11295. Not all technique families are applicable to every area of application and this is reflected in

A consistent structure of clause headings has been adopted for all parts to facilitate direct comparisons

Figure 1 shows the common structure and the relationship between ISO 11298 and the system

This document, in conjunction with ISO 11298-1, specifies requirements and test methods for cured-

in-place pipes and fittings used for the renovation of water supply networks which transport water

It applies to independent (fully structural, class A) and interactive (semi structural, class B) pressure

pipe liners, as defined in ISO 11295, which do not rely on adhesion to the existing pipeline. It applies

to the use of various thermosetting resin systems, in combination with compatible fibrous carrier

materials, reinforcement, and other process-related plastics components (see 5.1).

It does not include requirements or test methods for resistance to cyclic loading or the pressure rating

of CIPP liners where passing through bends, which are outside the scope of this document.

It is applicable to cured-in-place pipe lining systems intended to be used at a service temperature of up

NOTE For applications operating at service temperatures greater than 25 °C guidance on re-rating factors

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.

ISO 75-2, Plastics — Determination of temperature of deflection under load — Part 2: Plastics and ebonite

ISO 899-2:2003, Plastics — Determination of creep behaviour — Part 2: Flexural creep by three-point loading

ISO 3126, Plastics piping systems — Plastics components — Determination of dimensions

ISO 7432, Glass-reinforced thermosetting plastics (GRP) pipes and fittings — Test methods to prove the

design of locked socket-and-spigot joints, including double-socket joints, with elastomeric seals

ISO 7509, Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Determination

ISO 7684, Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Determination

ISO 7685, Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Determination

ISO 8513, Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Test methods

ISO 8521:2009, Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Test

methods for the determination of the apparent initial circumferential tensile strength

ISO 8533, Plastics piping systems for pressure and non-pressure drainage and sewerage — Glass-reinforced

thermosetting plastics (GRP) systems based on unsaturated polyester (UP) resin — Test methods to prove

ISO 10639:2017, Plastics piping systems for pressure and non-pressure water supply — Glass-reinforced

ISO 10468, Glass-reinforced thermosetting plastics (GRP) pipes — Determination of the ring creep

ISO 10928, Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes and fittings —

ISO 10952, Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes and fittings —

Determination of the resistance to chemical attack for the inside of a section in a deflected condition

ISO 11295:2017, Classification and information on design and applications of plastics piping systems used

ISO 11298-1:2018, Plastics piping systems for renovation of underground water supply networks —

I S O 14125:19 98 +A 1: 2011, Fibre-reinforced plastic composites — Determination of flexural properties

For the purposes of this document, the terms and definitions given in ISO 11298-1 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

porous component of the lining tube, which carries the liquid resin system during insertion into the

pipe being renovated and forms part of the installed lining system once the resin has been cured

cured-in-place pipe of a particular design, produced from a lining tube of specified materials, with a

wall structure which is uniquely defined for each diameter/wall thickness combination, and which is

specific cured-in-place pipe produced from a continuous lining tube, which has been impregnated in

situation of the outside of the installed liner relative to the inside of the existing pipeline, which can

either be an interference fit or include a small annular gap resulting from shrinkage and tolerances only

combination of cured resin system, carrier material and/or reinforcement, excluding any internal or

process of resin polymerization, which may be initiated or accelerated by the use of heat or exposure

required wall thickness of the composite, excluding any abrasion layer, as determined by structural design

elastic limit or first major discontinuity of the stress-strain curve associated with local failure of the

flexible tube, consisting of carrier material, resin system and any membranes and/or reinforcement, as

one of a range of discrete lining tube wall thicknesses dictated by the sum of the thicknesses of the

internal or external membrane designed to retain its integrity through the processes of lining tube

insertion and resin system cure, and to provide functions for the operational life of the CIPP liner

permanent or semi-permanent external membrane which is installed separately, before insertion of the

fibres incorporated in the liner, which enhance the dimensional stability of the liner and/or the

Note 1 to entry: The reinforcement can be incorporated in the carrier material, constitute the carrier material, or

thermosetting resin including the curing agent(s) and any fillers or other additives, in specified

internal or external membrane designed to retain its integrity through the processes of lining tube

insertion and resin system cure, but not relied on to retain its integrity at the “I” stage

membrane forming the internal or external surface of the pipe at the “M” stage, with functions at

thickness of CIPP at the "I" stage comprising the composite and any semi-permanent and permanent

testing performed to prove that the material, product, joint or assembly is capable of conforming to the

process of turning a flexible tube or hose inside out by the use of fluid (water or air) pressure

method whereby the impregnated lining tube is introduced by inversion to achieve simultaneous

method whereby the flat impregnated lining tube is first pulled into the pipe to be lined and then

Note 1 to entry: With some techniques inflation is achieved by inversion through the pulled-in lining tube of a

separate impregnated tube or dry hose, which is either withdrawn after resin cure or left in place as a permanent