ISO 24033:2006

INTERNATIONAL ISO
STANDARD 24033
First edition
2006-07-01


Pipes made of raised-temperature-
resistance polyethylene (PE-RT) — Effect
of time and temperature on the expected
strength
Tubes en polyéthylène de meilleure résistance à la température
(PE-RT) — Influence du temps et de la température sur la résistance
espérée





Reference number
ISO 24033:2006(E)
©
ISO 2006

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ISO 24033:2006(E)
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ii © ISO 2006 – All rights reserved

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ISO 24033:2006(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
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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 24033 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.
© ISO 2006 – All rights reserved iii

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ISO 24033:2006(E)
Introduction
An increasing number of types of polyethylene (PE) polymers, made in a variety of processes, is on the
market for different applications in plastic piping and ducting systems. Many applications have their own
system standard that defines the properties and requirements for the pipes and fittings used.
The types of PE suitable for use in hot and cold water systems are basically different from those for
applications at ambient temperatures such as in water supply, sewage and drainage, or gaseous fuels.
Therefore, it makes sense to differentiate those PE having raised temperature resistance by terming them
1)
“PE-RT” (for polyethylene of raised temperature resistance) .


1) Abbreviated term based on the provisions of, and guidance for preparing new abbreviated terms for basic polymers,
[1]
mixtures of polymers and related terms given in, ISO 1043-1 .
iv © ISO 2006 – All rights reserved

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INTERNATIONAL STANDARD ISO 24033:2006(E)

Pipes made of raised-temperature-resistance polyethylene
(PE-RT) — Effect of time and temperature on the expected
strength
1 Scope
This International Standard lays down the minimum values for expected strength as a function of time and
temperature in the form of reference lines, for use in calculations on polyethylene of raised temperature
resistance (PE-RT) pipes.
2 Normative references
The following referenced documents are indispensable for the application 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 1167-1, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of
the resistance to internal pressure — Part 1: General method
ISO 1167-2, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of
the resistance to internal pressure — Part 2: Preparation of pipe test piece
ISO 1167-3, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of
2)
the resistance to internal pressure — Part 3: Preparation of components
ISO 1167-4, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of
2)
th
...