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35

published ISO standards *

under the direct responsibility of ISO/TC 138/SC 4

2

ISO standards under development *

under the direct responsibility of ISO/TC 138/SC 4

34

Participating countries

18

Observing countries

* number includes updates

Reference Title Type
ISO/TC 138/SC 4/WG 2 Fusion of PE Pipe Systems Working group *
ISO/TC 138/SC 4/WG 6 Butt Fusion Procedures Working group *
ISO/TC 138/SC 4/WG 7 Polyamid Pipe Systems Working group *
ISO/TC 138/SC 4/WG 10 Natural compound and colouring masterbatch – specification Working group *

* The convener can be reached through the secretariat (See contact information below)

Liaison Committees to ISO/TC 138/SC 4

The committees below can access the documents of ISO/TC 138/SC 4 :

Reference Title ISO/IEC
ISO/TC 138/SC 8 Rehabilitation of pipeline systems ISO
Liaison Committees from ISO/TC 138/SC 4

ISO/TC 138/SC 4 can access the documents of the committees below :

Reference Title ISO/IEC
ISO/TC 138/SC 8 Rehabilitation of pipeline systems ISO

ISO/TC 138/SC 4 - Secretariat

NEN Netherlands
Kiwa Technology B.V.
P.O. Box 137
NL-7300 AC Apeldoorn
Netherlands

Tel: +31 55 539 32 52
Fax: +31 55 539 32 23

Secretariat direct:
Mr Bert Wikkerink
Tel: +31 555 393 445
Fax: +31 555 393 335