PPS 3425
Project Plan 2026
Plastics piping systems — Mechanical joints between fittings and pressure pipes — Test method for leaktightness under internal pressure of assemblies subjected to bending
Sector:
Mechanical and Metals
Project Method:
Adoption with modification
Project Type:
New
International Classification for Standards (ICS)
| Code | Classification |
|---|---|
| 23.040.20 | Plastics pipes |
Adopted Standard
| Standards / Amendment / Corrigendum | |
|---|---|
| 1 | ISO 3503:2015 |
Scope
This International Standard specifies a method for checking the leaktightness under internal pressure of assembled joints between mechanical fittings and plastic pressure pipes when subjected to bending. It defines the calculation method for the average bending radius and how to perform this bending.
Checking of the leaktightness under internal pressure is carried out in accordance with the method given in ISO 3458.
This test method is not applicable to fusion-welded joints.