ISO 21138-3:2020
(Main)Plastics piping systems for non-pressure underground drainage and sewerage — Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) — Part 3: Pipes and fittings with non-smooth external surface, Type B
Plastics piping systems for non-pressure underground drainage and sewerage — Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) — Part 3: Pipes and fittings with non-smooth external surface, Type B
This document, together with ISO 21138‑1, specifies the definitions and requirements for pipes with a non-smooth external surface and a smooth internal surface (Type B), fittings and systems based on unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) structured-wall piping systems intended to be used in non-pressure underground drainage and sewerage applications. NOTE 1 Pipes, fittings and the systems complying with this document can also be used for highway drainage and surface water. This document specifies test methods and test parameters. This document covers a range of pipe and fitting sizes, materials, pipe constructions and nominal ring stiffnesses, and gives recommendations concerning colours. NOTE 2 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and installation practices or codes. In conjunction with ISO 21138‑1, this document is applicable to structured-wall pipes and fittings, to their joints and to joints with components of other plastics and non-plastics materials. It is applicable to pipes and fittings with or without an integral socket with elastomeric ring seal joints as well as welded and fused joints. NOTE 3 Pipes, fittings and other components conforming to any plastics product standards referred to in Clause 2 are deemed to be suitable for use with pipes and fittings conforming to this document, when they conform to the requirements for joint dimensions given in ISO 21138‑2 or ISO 21138‑3 (this document) and to the performance requirements given in Clause 10. NOTE 4 For dimensions larger than DN/OD 1200 or DN/ID 1200, this document can serve as general guidance regarding appearance, colour, physical and mechanical characteristics as well as performance requirements. Test methods are not included in this document.
Systèmes de canalisations en plastique pour les branchements et les collecteurs d'assainissement sans pression enterrés — Systèmes de canalisations à parois structurées en poly(chlorure de vinyle) non plastifié (PVC-U), polypropylène (PP) et polyéthylène (PE) — Partie 3: Tubes et raccords avec une surface externe non lisse, type B
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INTERNATIONAL ISO
STANDARD 21138-3
Second edition
2020-01
Plastics piping systems for non-
pressure underground drainage and
sewerage — Structured-wall piping
systems of unplasticized poly(vinyl
chloride) (PVC-U), polypropylene (PP)
and polyethylene (PE) —
Part 3:
Pipes and fittings with non-smooth
external surface, Type B
Systèmes de canalisations en plastique pour les branchements et les
collecteurs d'assainissement sans pression enterrés — Systèmes de
canalisations à parois structurées en poly(chlorure de vinyle) non
plastifié (PVC-U), polypropylène (PP) et polyéthylène (PE) —
Partie 3: Tubes et raccords avec une surface externe non lisse, type B
Reference number
©
ISO 2020
© ISO 2020
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 2020 – All rights reserved
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 3
3.1 Terms and definitions . 3
3.2 Symbols . 4
3.3 Abbreviated terms . 4
4 Material . 5
4.1 General . 5
4.2 Unplasticized poly(vinyl chloride) (PVC-U) . 6
4.2.1 General. 6
4.2.2 Pipe and fitting material characteristics . 7
4.2.3 Utilization of non-virgin materials . 7
4.3 Polypropylene (PP) . 7
4.3.1 General. 7
4.3.2 Pipe and fitting material characteristics . 7
4.3.3 Melt mass-flow rate classification . 8
4.3.4 Utilization of non-virgin materials . 9
4.4 Polyethylene (PE) . 9
4.4.1 General. 9
4.4.2 Material characteristics of pipes and injection-moulded fittings . 9
4.4.3 Material characteristics of rotational-moulded fittings .10
4.4.4 Utilization of non-virgin materials .10
4.5 Sealing ring retaining components . .10
4.6 Sealing rings .10
4.7 Fused or welded joints .11
4.8 Adhesives for PVC-U .11
5 Designation of wall construction and examples of typical jointing methods .11
5.1 Wall constructions designated as Type B .11
5.1.1 Ribbed or corrugated construction .11
5.1.2 Typical jointing methods for structured-wall Type B pipes .11
5.2 Designation and design of joints.12
6 General characteristics for pipes and fittings — Colour .12
7 Geometrical characteristics .12
7.1 General .12
7.2 Dimensions .12
7.2.1 Designation .12
7.2.2 Lengths of pipe .12
7.2.3 Diameters of Type B pipes and spigots of pipes or fittings .12
7.2.4 Diameters and jointing dimensions of sockets and spigots.14
7.2.5 Wall thicknesses .15
7.3 Types of fitting.16
8 Physical characteristics .16
8.1 Unplasticized poly(vinyl chloride) (PVC-U) .16
8.1.1 Physical characteristics of PVC-U pipes .16
8.1.2 Physical characteristics of PVC-U fittings .17
8.2 Polypropylene (PP) .18
8.2.1 Physical characteristics of PP pipes .18
8.2.2 Physical characteristics of PP fittings .18
8.3 Polyethylene (PE) .19
8.3.1 Physical characteristics of PE pipes .19
8.3.2 Physical characteristics of PE fittings .19
9 Mechanical characteristics .19
9.1 Mechanical characteristics of pipes .19
9.1.1 General.19
9.1.2 Ring flexibility .21
9.1.3 Tensile strength of seams .21
9.1.4 Additional requirements .21
9.2 Mechanical characteristics of fittings .21
10 Performance requirements .22
11 Marking .24
11.1 General .24
11.2 Minimum required marking .24
11.2.1 Pipes .24
11.2.2 Fittings .24
Annex A (normative) Virgin PVC-U material .26
Annex B (normative) Utilization of non-virgin PVC-U material .27
Annex C (normative) Virgin PP material .30
Annex D (normative) Utilization of non-virgin PP material .31
Annex E (normative) Virgin PE material .33
Annex F (normative) Utilization of non-virgin PE material .34
Annex G (informative) Survey of possible use of reprocessed and recycled material .37
Bibliography .
...
INTERNATIONAL ISO
STANDARD 21138-3
Second edition
2020-01
Plastics piping systems for non-
pressure underground drainage and
sewerage — Structured-wall piping
systems of unplasticized poly(vinyl
chloride) (PVC-U), polypropylene (PP)
and polyethylene (PE) —
Part 3:
Pipes and fittings with non-smooth
external surface, Type B
Systèmes de canalisations en plastique pour les branchements et les
collecteurs d'assainissement sans pression enterrés — Systèmes de
canalisations à parois structurées en poly(chlorure de vinyle) non
plastifié (PVC-U), polypropylène (PP) et polyéthylène (PE) —
Partie 3: Tubes et raccords avec une surface externe non lisse, type B
Reference number
©
ISO 2020
© ISO 2020
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 2020 – All rights reserved
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 3
3.1 Terms and definitions . 3
3.2 Symbols . 4
3.3 Abbreviated terms . 4
4 Material . 5
4.1 General . 5
4.2 Unplasticized poly(vinyl chloride) (PVC-U) . 6
4.2.1 General. 6
4.2.2 Pipe and fitting material characteristics . 7
4.2.3 Utilization of non-virgin materials . 7
4.3 Polypropylene (PP) . 7
4.3.1 General. 7
4.3.2 Pipe and fitting material characteristics . 7
4.3.3 Melt mass-flow rate classification . 8
4.3.4 Utilization of non-virgin materials . 9
4.4 Polyethylene (PE) . 9
4.4.1 General. 9
4.4.2 Material characteristics of pipes and injection-moulded fittings . 9
4.4.3 Material characteristics of rotational-moulded fittings .10
4.4.4 Utilization of non-virgin materials .10
4.5 Sealing ring retaining components . .10
4.6 Sealing rings .10
4.7 Fused or welded joints .11
4.8 Adhesives for PVC-U .11
5 Designation of wall construction and examples of typical jointing methods .11
5.1 Wall constructions designated as Type B .11
5.1.1 Ribbed or corrugated construction .11
5.1.2 Typical jointing methods for structured-wall Type B pipes .11
5.2 Designation and design of joints.12
6 General characteristics for pipes and fittings — Colour .12
7 Geometrical characteristics .12
7.1 General .12
7.2 Dimensions .12
7.2.1 Designation .12
7.2.2 Lengths of pipe .12
7.2.3 Diameters of Type B pipes and spigots of pipes or fittings .12
7.2.4 Diameters and jointing dimensions of sockets and spigots.14
7.2.5 Wall thicknesses .15
7.3 Types of fitting.16
8 Physical characteristics .16
8.1 Unplasticized poly(vinyl chloride) (PVC-U) .16
8.1.1 Physical characteristics of PVC-U pipes .16
8.1.2 Physical characteristics of PVC-U fittings .17
8.2 Polypropylene (PP) .18
8.2.1 Physical characteristics of PP pipes .18
8.2.2 Physical characteristics of PP fittings .18
8.3 Polyethylene (PE) .19
8.3.1 Physical characteristics of PE pipes .19
8.3.2 Physical characteristics of PE fittings .19
9 Mechanical characteristics .19
9.1 Mechanical characteristics of pipes .19
9.1.1 General.19
9.1.2 Ring flexibility .21
9.1.3 Tensile strength of seams .21
9.1.4 Additional requirements .21
9.2 Mechanical characteristics of fittings .21
10 Performance requirements .22
11 Marking .24
11.1 General .24
11.2 Minimum required marking .24
11.2.1 Pipes .24
11.2.2 Fittings .24
Annex A (normative) Virgin PVC-U material .26
Annex B (normative) Utilization of non-virgin PVC-U material .27
Annex C (normative) Virgin PP material .30
Annex D (normative) Utilization of non-virgin PP material .31
Annex E (normative) Virgin PE material .33
Annex F (normative) Utilization of non-virgin PE material .34
Annex G (informative) Survey of possible use of reprocessed and recycled material .37
Bibliography .
...
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