Thermoplastics piping systems for non-pressure underground drainage and sewerage — Thermoplastics shafts or risers for inspection chambers and manholes — Determination of ring stiffness

This document specifies a test method for assessing the initial (short-term) tangential ring stiffness of riser shafts for thermoplastics inspection chambers or manholes.

Systèmes de canalisations thermoplastiques pour branchements et collecteurs d'assainissement enterrés sans pression — Éléments de réhausse thermoplastiques pour chambres d'inspection et de branchement ou regards — Détermination de la rigidité annulaire

General Information

Status
Published
Publication Date
14-Jun-2022
Current Stage
6060 - International Standard published
Due Date
07-Jan-2022
Completion Date
15-Jun-2022
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ISO 13268:2022 - Thermoplastics piping systems for non-pressure underground drainage and sewerage — Thermoplastics shafts or risers for inspection chambers and manholes — Determination of ring stiffness Released:15. 06. 2022
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INTERNATIONAL ISO
STANDARD 13268
Second edition
2022-06
Thermoplastics piping systems for
non-pressure underground drainage
and sewerage — Thermoplastics
shafts or risers for inspection
chambers and manholes —
Determination of ring stiffness
Systèmes de canalisations thermoplastiques pour branchements
et collecteurs d'assainissement enterrés sans pression — Éléments
de réhausse thermoplastiques pour chambres d'inspection et de
branchement ou regards — Détermination de la rigidité annulaire
Reference number
ISO 13268:2022(E)
© ISO 2022
---------------------- Page: 1 ----------------------
ISO 13268:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022

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
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CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO 2022 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 13268:2022(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

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

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

3 Terms and definitions .................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

4.1 General ........................................................................................................................................................................................................... 1

4.2 Principle for shafts with regular cross-section ........................................................................................................ 2

4.3 Principle for shafts with irregular, square or rectangular cross-section ......................................... 2

5 Apparatus .................................................................................................................................................................................................................... 2

6 Test pieces ...................................................................................................................................................................................................................5

6.1 Number of test pieces ....................................................................................................................................................................... 5

6.2 Age of test pieces .................................................................................................................................................................................. 5

6.3 Specification of test pieces ........................................................................................................................................................... 5

6.3.1 Shafts with regular cross-section ....................................................................................................................... 5

6.3.2 Shafts with irregular, square or rectangular cross-section ........................................................ 5

7 Procedure ....................................................................................................................................................................................................................6

7.1 Test temperature .................................................................................................................................................................................. 6

7.2 Shafts with regular cross-section ......................................................................................................................................... 6

7.3 Shafts with irregular, square or rectangular cross-section .......................................................................... 6

8 Calculation .................................................................................................................................................................................................................. 7

8.1 Shafts with a regular cross-section ..................................................................................................................................... 7

8.2 Shafts with irregular, square or rectangular cross-section .......................................................................... 7

9 Test report .................................................................................................................................................................................................................. 7

Bibliography ................................................................................................................................................................................................................................ 9

iii
© ISO 2022 – All rights reserved
---------------------- Page: 3 ----------------------
ISO 13268:2022(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.

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 Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for

the transport of fluids, Subcommittee SC 1, Plastics pipes and fittings for soil, waste and drainage (including

land drainage).

This second edition cancels and replaces the first edition (ISO 13268:2010), which has been technically

revised.
The main changes are as follows:
— normative references have been updated;
— definitions have been revised;

— in 8.2, the calculation of the shape factor, S has been changed for irregular sections;

— this document has been editorially revised.

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.
© ISO 2022 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 13268:2022(E)
Thermoplastics piping systems for non-pressure
underground drainage and sewerage — Thermoplastics
shafts or risers for inspection chambers and manholes —
Determination of ring stiffness
1 Scope

This document specifies a test method for assessing the initial (short-term) tangential ring stiffness of

riser shafts for thermoplastics inspection chambers or manholes.
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 48-2, Rubber, vulcanized or thermoplastic — Determination of hardness — Part 2: Hardness between

10 IRHD and 100 IRHD
ISO 9969, Thermoplastics pipes — Determination of ring stiffness
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

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

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
regular cross-section shaft
circular riser shaft with a regular symmetrical design on their external surface

Note 1 to entry: These products can be either fabricated from plain pipe or from structured wall pipe or fittings.

3.2
irregular cross-section shaft

circular riser shaft with an irregular asymmetrical design on its external surface

Note 1 to entry: These products can include additional reinforcing rings or structures intended to strengthen the

riser in specific areas.
4 Principle
4.1 General

The ring stiffness of a shaft with a regular cross-section is determined using the ISO 9969 test method.

Where a shaft has an irregular, square or rectangular cross-section, the ISO 9969 test shall be modified

as described in this document to determine the ring stiffness (see Table 1).
© ISO 2022 – All rights reserved
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ISO 13268:2022(E)
Table 1 — Relevant International Standards for determination of ring stiffness
Relevant International Standard
External shaft design Type of cross-section for determination of ring
stiffness
Regular cross-section ISO 9969
Plain surfac
...

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