ISO 11298-4:2021 Plastics piping systems for renovation of underground water supply networks —Part 4: Lining with cured-in-place pipes

标准简介

Plastics piping systems for renovation of underground water supply networks —Part 4: Lining with cured-in-place pipes是国际标准化组织(International Organization for Standardization，简称ISO)于2021-03发布的ISO标准，适用于全球范围。

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标准部分原文

Plastics piping systems for renovation of underground water supply networks —

Part 4: Lining with cured-in-place pipes

1 Scope

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 intended for human consumption, including raw water intake pipelines.

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 to 25 °C.

NOTE For applications operating at service temperatures greater than 25 °C, guidance on re-rating factors can be supplied by the system supplier.

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.

ISO 75-2:2013, Plastics — Determination of temperature of deflection under load — Part 2: Plastics and ebonite

ISO 178:2019, Plastics — Determination of flexural properties

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 of time to failure under sustained internal pressure

ISO 7685:2019, Glass-reinforced thermosetting plastics (GRP) pipes — Determination of initial ring stiffness

ISO 8513:2016, Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Test methods for the determination of the initial longitudinal tensile strength

ISO 8521:2020, Glass-reinforced thermosetting plastic (GRP) pipes — Test methods for the determination of the initial circumferential tensile wall strength

ISO 8533, Glass-reinforced thermosetting plastics (GRP) pipes and fittings — Test methods to prove the design of cemented or wrapped joints

ISO 10468, Glass-reinforced thermosetting plastics (GRP) pipes — Determination of the ring creep properties under wet or dry conditions

ISO 10639:2017, Plastics piping systems for pressure and non-pressure water supply — Glass-reinforced thermosetting plastics (GRP) systems based on unsaturated polyester (UP) resin

ISO 10928:2016, Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes and fittings — Methods for regression analysis and their use

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

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

ISO 13002, Carbon fibre — Designation system for filament yarns

ISO 14125:1998, Fibre-reinforced plastic composites — Determination of flexural properties

3 Terms a nd definiti ons

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:

— ISO Online browsing platform: available at https:// www .iso. org/ obp

— IEC Electropedia: available at http:// www .electropedia .org/ 3.1 General terms

3.1.1

carrier material

porous component of the lining tube (3.1.8), which carries the liquid resin system (3.1.14) during insertion into the pipe being renovated and forms part of the installed lining system once the resin has been cured

3.1.2

CIPP product

cured-in-place pipe of a particular design, produced from a lining tube (3.1.8) of specified materials, with a wall structure which is uniquely defined for each diameter/wall thickness combination, and which is impregnated with a specific resin system (3.1.14) and installed by a specific process

3.1.3

c lo s e f it

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

3.1.4

composite

combination of cured resin system (3.1.14), carrier material (3.1.1) and/or reinforcement (3.1.13), excluding any internal or external membranes

3.1.5

curing

process of resin polymerization, which can be initiated or accelerated by the use of heat or exposure to light

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