ISO/TR 27165:2012
(Main)Thermoplastics piping systems - Guidance for definitions of wall constructions for pipes
Thermoplastics piping systems - Guidance for definitions of wall constructions for pipes
ISO/TR 27165:2012 provides definitions for wall constructions of thermoplastics pipes intended to be used in pressure and non-pressure pipe applications. It takes into account as far as possible already existing definitions in published product standards and gives guidance for a common text when drafting new deliverables or revising existing ones.
Systèmes de canalisations thermoplastiques — Lignes directrices pour les définitions relatives à la construction des parois de tubes
General Information
Standards Content (Sample)
TECHNICAL ISO/TR
REPORT 27165
First edition
2012-10-15
Thermoplastics piping systems —
Guidance for definitions of wall
constructions for pipes
Systèmes de canalisations thermoplastiques — Lignes directrices pour
les définitions relatives à la construction des parois de tubes
Reference number
ISO/TR 27165:2012(E)
©
ISO 2012
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ISO/TR 27165:2012(E)
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ii © ISO 2012 – All rights reserved
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ISO/TR 27165:2012(E)
Contents Page
Foreword .iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Materials . 1
3.2 Coated pipes . 1
3.3 Solid wall pipes . 2
3.4 Multilayer pipes . 2
3.5 Structured wall pipes . 3
3.6 Double wall piping system . 3
© ISO 2012 – All rights reserved iii
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ISO/TR 27165:2012(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
In exceptional circumstances, when a technical committee has collected data of a different kind from that
which is normally published as an International Standard (“state of the art”, for example), it may decide by a
simple majority vote of its participating members to publish a Technical Report. A Technical Report is entirely
informative in nature and does not have to be reviewed until the data it provides are considered to be no longer
valid or useful.
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/TR 27165 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the
transport of fluids, Subcommittee SC 2, Plastics pipes and fittings for water supplies, in collaboration with
Technical Committee CEN/TC 155, Plastics piping systems and ducting systems.
iv © ISO 2012 – All rights reserved
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ISO/TR 27165:2012(E)
Introduction
For thermoplastics piping systems used in pressure and non-pressure applications, there are different wall
constructions on the market.
Existing definitions in product standards can vary from those as given in this document.
Regarding new developments in this sector, CEN/TC 155 and ISO/TC 138/SC 2 felt it necessary to establish
common definitions for wall constructions of pipes to be referenced in a uniform way in product standards.
© ISO 2012 – All rights reserved v
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TECHNICAL REPORT ISO/TR 27165:2012(E)
Thermoplastics piping systems — Guidance for definitions of
wall constructions for pipes
1 Scope
This Technical Report provides definitions for wall constructions of thermoplastics pipes intended to be used in
pressure and non-pressure pipe applications. It takes into account as far as possible already existing definitions
in published product standards and gives guidance for a common text when drafting new deliverables or
revising existing ones.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applie
...
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