Preparation of standards for thermoplastic piping systems for industrial applications and standardization of characteristics and requirements for their components including pipes, fittings and accessories. Areas of application include non-pressure, vacuum and pressurized gaseous and liquid supply in above and below-ground networks.

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Published ISO standards *


ISO standards under development *

Participating members
Observing members

* number includes updates

Reference Title Type
ISO/TC 138/SC 3/WG 1   Chemical resistance of pipes and fittings of thermoplastics materials Working group
ISO/TC 138/SC 3/WG 7   Revision of industrial application standards Working group
ISO/TC 138/SC 3/WG 8   Polyethylene reinforced with short glass fibres (PE-sGF) piping systems for industrial applications Working group
Liaison Committees to ISO/TC 138/SC 3

The committees below can access the documents of ISO/TC 138/SC 3:

Reference Title ISO/IEC
ISO/TC 61 Plastics ISO
Date Month Location TC/SC Note
24 October 2024 Paris (France) ISO/TC 138/SC 3  

* Information definite but meeting not yet formally convened
** Provisional

ISO/TC 138/SC 3 - Secretariat

UNI [Italy]

Piazza Leonardo da Vinci, 32
I-20133 Milano

Tel: +39 02 23996541 / +39 0223996540