Elastomeric seals -- Material requirements for seals used in pipes and fittings carrying gaseous fuels and hydrocarbon fluids

This document specifies requirements for elastomeric materials used in seals for supply pipes and fittings, ancillaries and valves at operating temperatures in general from ?5 °C up to 50 °C and in special cases from ?15 °C up to 50 °C, for the following: a) general applications (see Table 4, type G series): — gaseous fuel [manufactured, natural and liquefied petroleum gas (LPG) in the gaseous phase], — hydrocarbon fluids with an aromatic content up to 30 % (by volume), including LPG in the liquid phase; b) special applications (see Table 4, type H): — materials suitable for carrying gaseous fuels containing gas condensates and hydrocarbon fluids of unrestricted aromatic content. General requirements for finished joint seals are also given; any additional requirements called for by the particular application are specified in the relevant product standards, taking into account that the performance of pipe joints is a function of the seal material properties, seal geometry and pipe joint design. This document is used where appropriate with product standards which specify performance requirements for joints. This document is applicable to joint seals for all pipeline materials, including iron, steel, copper and plastics. In the case of composite sealing rings, the requirements in 5.2.8 and 5.2.9 apply only when the materials used for any elastomeric parts come into contact with gaseous fuel or hydrocarbon fluid. Elongation at break, tensile strength, compression set and stress relaxation requirements for materials of hardness classes 80 and 90 apply only when they constitute that part of the seal which participates directly in the sealing function or contributes directly to long-term stability. This document is not applicable to the following: — seals made from cellular materials; — seals with enclosed voids as part of their design; — seals required to be resistant to flame or to thermal stress; — seals which contain splices joining pre-vulcanized profile ends.

Garnitures d'étanchéité en élastomères -- Exigences matérielles pour les joints utilisés dans les canalisations et les raccords véhiculant des combustibles gazeux et des hydrocarbures liquides

General Information

Status
Published
Publication Date
27-Aug-2019
Current Stage
6060 - International Standard published
Start Date
09-Aug-2019
Completion Date
28-Aug-2019
Ref Project

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INTERNATIONAL ISO
STANDARD 16010
Second edition
2019-08
Elastomeric seals — Material
requirements for seals used in pipes
and fittings carrying gaseous fuels and
hydrocarbon fluids
Garnitures d'étanchéité en élastomères — Exigences matérielles pour
les joints utilisés dans les canalisations et les raccords véhiculant des
combustibles gazeux et des hydrocarbures liquides
Reference number
ISO 16010:2019(E)
ISO 2019
---------------------- Page: 1 ----------------------
ISO 16010:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© 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
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Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2019 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 16010:2019(E)
Contents Page

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

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

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

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Classification ............................................................................................................................................................................................................ 2

5 Requirements .......................................................................................................................................................................................................... 2

5.1 Materials ....................................................................................................................................................................................................... 2

5.2 Finished-seal requirements ......................................................................................................................................................... 3

5.2.1 Dimensional tolerances.............................................................................................................................................. 3

5.2.2 Imperfections and defects ....................................................................................................................................... 3

5.2.3 Hardness ................................................................................................................................................................................. 3

5.2.4 Tensile strength and elongation at break ................................................................................................... 3

5.2.5 Compression set in air ................................................................................................................................................ 3

5.2.6 Accelerated ageing in air ........................................................................................................................................... 4

5.2.7 Stress relaxation in compression ....................................................................................................................... 4

5.2.8 Volume change in liquid B ....................................................................................................................................... 4

5.2.9 Volume change in oil ..................................................................................................................................................... 4

5.2.10 Ozone resistance .............................................................................................................................................................. 4

5.2.11 Compression set at –15 °C ....................................................................................................................................... 5

6 Test pieces and temperature.................................................................................................................................................................... 5

6.1 Preparation of test pieces .............................................................................................................................................................. 5

6.2 Test temperature ................................................................................................................................................................................... 5

7 Quality assurance ................................................................................................................................................................................................ 7

8 Storage ............................................................................................................................................................................................................................ 7

9 Designation ................................................................................................................................................................................................................ 8

10 Marking and labelling ..................................................................................................................................................................................... 8

Annex A (informative) Quality assurance........................................................................................................................................................ 9

Annex B (informative) Guidance on storage of seals ........................................................................................................................10

Bibliography .............................................................................................................................................................................................................................11

© ISO 2019 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 16010:2019(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 45, Rubber and rubber products,

Subcommittee SC 4, Products other than hoses.

This second edition cancels and replaces the first edition (ISO 16010:2005), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— normative references has been updated to the latest version

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
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 16010:2019(E)
Elastomeric seals — Material requirements for seals
used in pipes and fittings carrying gaseous fuels and
hydrocarbon fluids
1 Scope

This document specifies requirements for elastomeric materials used in seals for supply pipes and

fittings, ancillaries and valves at operating temperatures in general from –5 °C up to 50 °C and in special

cases from –15 °C up to 50 °C, for the following:
a) general applications (see Table 4, type G series):

— gaseous fuel [manufactured, natural and liquefied petroleum gas (LPG) in the gaseous phase],

— hydrocarbon fluids with an aromatic content up to 30 % (by volume), including LPG in the

liquid phase;
b) special applications (see Table 4, type H):

— materials suitable for carrying gaseous fuels containing gas condensates and hydrocarbon

fluids of unrestricted aromatic content.

General requirements for finished joint seals are also given; any additional requirements called for by

the particular application are specified in the relevant product standards, taking into account that the

performance of pipe joints is a function of the seal material properties, seal geometry and pipe joint

design. This document is used where appropriate with product standards which specify performance

requirements for joints.

This document is applicable to joint seals for all pipeline materials, including iron, steel, copper and

plastics.

In the case of composite sealing rings, the requirements in 5.2.8 and 5.2.9 apply only when the materials

used for any elastomeric parts come into contact with gaseous fuel or hydrocarbon fluid.

Elongation at break, tensile strength, compression set and stress relaxation requirements for materials

of hardness classes 80 and 90 apply only when they constitute that part of the seal which participates

directly in the sealing function or contributes directly to long-term stability.
This document is not applicable to the following:
— seals made from cellular materials;
— seals with enclosed voids as part of their design;
— seals required to be resistant to flame or to thermal stress;
— seals which contain splices joining pre-vulcanized profile ends.
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 2019 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO 16010:2019(E)

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 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties

ISO 48-2, Rubber, vulcanized or thermoplastic — Determination of hardness — Part 2: Hardness between

10 IRHD and 100 IRHD

ISO 188:2011, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests

ISO 815-1, Rubber, vulcanized or thermoplastic — Determination of compression set — Part 1: At ambient

or elevated temperatures

ISO 815-2, Rubber, vulcanized or thermoplastic — Determination of compression set — Part 2: At low

temperatures

ISO 1431-1, Rubber, vulcanized or thermoplastic — Resistance to ozone cracking — Part 1: Static and

dynamic strain testing

ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids

ISO 3302-1, Rubber — Tolerances for products — Part 1: Dimensional tolerances

ISO 3384-1:2011, Rubber, vulcanized or thermoplastic — Determination of stress relaxation in compression

at ambient and at elevated temperatures

ISO 9691:1992, Rubber — Recommendations for the workmanship of pipe joint rings — Description and

classification of imperfections

ISO 23529, Rubber — General procedures for preparing and conditioning test pieces for physical test methods

3 Terms and definitions
No terms and definitions are listed in this document.

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/
4 Classification
Five classes of material for pipe seals are specified in Tables 2 and 3.
A nominal hardness shall be specified within the ranges in Table 1.
Table 1 — Hardness classification
Hardness class 50 60 70 80 90
Range of hardness, IRHD 46 to 55 56 to 65 66 to 75 76 to 85 86 to 95
5 Requirements
5.1 Materials

The materials shall be free of any substances which may have a deleterious effect on the life of the seals,

or on the pipe or fittings.
2 © ISO 2019 – All rights reserved
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ISO 16010:2019(E)
5.2 Finished-seal requirements
5.2.1 Dimensional tolerances
Tolerances shall be specified from the appropriate classes in ISO 3302-1.
5.2.2 Imperfections and defects

The seals shall be free of defects or irregularities which could affect their function. Classification of

imperfections shall be in accordance with ISO 9691, as follows:

— surface imperfections in zones involved in the sealing function as described in 4.1.1 of ISO 9691:1992

shall be considered as defects;

— minor surface imperfections in zones not involved in the sealing function as described in 4.1.2.1 b)

of ISO 9691:1992 shall not be considered as defects.

Major surface imperfections in zones not involved in the sealing function as described in 4.1.2.1 a) of

ISO 9691:1992 can be considered as defects. This shall be agreed between the interested parties; the

acceptance criteria will depend upon the seal type or design.

Internal imperfections as described in 4.2 of ISO 9691:1992 could be considered as defects. The

compressive force can be determined in accordance with ISO 7743. The acceptable limiting values of

the compressive force shall be agreed between the interested parties; they will depend upon the seal

type or design.
5.2.3 Hardness

When determined by the micro-test specified in ISO 48-2, the hardness shall comply with the

requirements given in Table 2 or 3.
NOTE If
...

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