ISO 10146:2019
(Main)Crosslinked polyethylene (PE-X) and crosslinked medium density polyethylene (PE-MDX) — Effect of time and temperature on expected strength
Crosslinked polyethylene (PE-X) and crosslinked medium density polyethylene (PE-MDX) — Effect of time and temperature on expected strength
This document specifies the minimum values for expected strength as a function of time and temperature in the form of reference lines, for use in calculations on crosslinked polyethylene (PE-X) pipes and crosslinked medium density polyethylene (PE-MDX) pipes. NOTE 1 This document is applicable for pipes with the minimum level of crosslinking after production in accordance with Clause 4. NOTE 2 The density range for medium density polyethylene is 926 kg/m3 to 940 kg/m3 in accordance with ISO 17855-1:2014[2].
Tubes en polyéthylène réticulé (PE-X et PE-MDX) — Influence du temps et de la température sur la résistance espérée
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INTERNATIONAL ISO
STANDARD 10146
Second edition
2019-03
Crosslinked polyethylene (PE-X)
and crosslinked medium density
polyethylene (PE-MDX) — Effect of
time and temperature on expected
strength
Tubes en polyéthylène réticulé (PE-X et PE-MDX) — Influence du
temps et de la température sur la résistance espérée
Reference number
©
ISO 2019
© 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
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Characteristics . 2
5 Basic formulae . 2
6 Expected strength . 3
6.1 Extrapolation limits . 3
6.2 Graphical representation . 4
6.3 Tabulated values . 4
Annex A (normative) Demonstrating conformance of pipes to the reference lines .10
Bibliography .11
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 ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids,
SC 5, General properties of pipes, fittings and valves of plastic materials and their accessories — Test
methods and basic specifications.
This second edition cancels and replaces the first edition (ISO 10146:1997), which has been technically
revised. The main changes compared to the previous edition are as follows:
— a second type of material termed crosslinked medium density polyethylene (PE-MDX) has been
[1]
added in accordance with DIN 16894:2011 ;
— the minimum degree of crosslinking applicable for pipe conforming to this document is specified.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved
INTERNATIONAL STANDARD ISO 10146:2019(E)
Crosslinked polyethylene (PE-X) and crosslinked medium
density polyethylene (PE-MDX) — Effect of time and
temperature on expected strength
1 Scope
This document specifies the minimum values for expected strength as a function of time and
temperature in the form of reference lines, for use in calculations on crosslinked polyethylene (PE-X)
pipes and crosslinked medium density polyethylene (PE-MDX) pipes.
NOTE 1 This document is applicable for pipes with the minimum level of crosslinking after production in
accordance with Clause 4.
3 3
NOTE 2 The density range for medium density polyethylene is 926 kg/m to 940 kg/m in accordance with
[2]
ISO 17855-1:2014 .
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 9080, Plastics piping and ducting systems — Determination of the long-term hydrostatic strength of
thermoplastics materials in pipe form by extrapolation
ISO 10147, Pipes and fittings made of crosslinked polyethylene (PE-X) — Estimation of the degree of
crosslinking by determination of the gel content
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
...
INTERNATIONAL ISO
STANDARD 10146
Second edition
2019-03
Crosslinked polyethylene (PE-X)
and crosslinked medium density
polyethylene (PE-MDX) — Effect of
time and temperature on expected
strength
Tubes en polyéthylène réticulé (PE-X et PE-MDX) — Influence du
temps et de la température sur la résistance espérée
Reference number
©
ISO 2019
© 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
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Characteristics . 2
5 Basic formulae . 2
6 Expected strength . 3
6.1 Extrapolation limits . 3
6.2 Graphical representation . 4
6.3 Tabulated values . 4
Annex A (normative) Demonstrating conformance of pipes to the reference lines .10
Bibliography .11
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 ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids,
SC 5, General properties of pipes, fittings and valves of plastic materials and their accessories — Test
methods and basic specifications.
This second edition cancels and replaces the first edition (ISO 10146:1997), which has been technically
revised. The main changes compared to the previous edition are as follows:
— a second type of material termed crosslinked medium density polyethylene (PE-MDX) has been
[1]
added in accordance with DIN 16894:2011 ;
— the minimum degree of crosslinking applicable for pipe conforming to this document is specified.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved
INTERNATIONAL STANDARD ISO 10146:2019(E)
Crosslinked polyethylene (PE-X) and crosslinked medium
density polyethylene (PE-MDX) — Effect of time and
temperature on expected strength
1 Scope
This document specifies the minimum values for expected strength as a function of time and
temperature in the form of reference lines, for use in calculations on crosslinked polyethylene (PE-X)
pipes and crosslinked medium density polyethylene (PE-MDX) pipes.
NOTE 1 This document is applicable for pipes with the minimum level of crosslinking after production in
accordance with Clause 4.
3 3
NOTE 2 The density range for medium density polyethylene is 926 kg/m to 940 kg/m in accordance with
[2]
ISO 17855-1:2014 .
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 9080, Plastics piping and ducting systems — Determination of the long-term hydrostatic strength of
thermoplastics materials in pipe form by extrapolation
ISO 10147, Pipes and fittings made of crosslinked polyethylene (PE-X) — Estimation of the degree of
crosslinking by determination of the gel content
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
...
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