ISO 161-1:2018

INTERNATIONAL ISO
STANDARD 161-1
Fourth edition
2018-01
Thermoplastics pipes for the
conveyance of fluids — Nominal
outside diameters and nominal
pressures —
Part 1:
Metric series
Tubes en matières thermoplastiques pour le transport des fluides —
Diamètres extérieurs nominaux et pressions nominales —
Partie 1: Série métrique
Reference number
ISO 161-1:2018(E)
©
ISO 2018

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ISO 161-1:2018(E)

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ii © ISO 2018 – All rights reserved

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ISO 161-1:2018(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Nominal outside diameter, d . 3
n
5 Nominal pressure rating (PN). 4
6 Minimum required strength (MRS) . 4
Bibliography . 5
© ISO 2018 – All rights reserved iii

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ISO 161-1:2018(E)

Foreword
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This document was prepared by Technical Committee ISO/TC 138, Plastics pipes, fitting
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