BS EN ISO 13259:2020

This standard BS EN ISO 13259:2020 Thermoplastics piping systems for underground non-pressure applications. Test method for leaktightness of elastomeric sealing ring type joints is classified in these ICS categories:

• 91.140.80 Drainage systems
• 23.040.20 Plastics pipes
• 23.040.80 Seals for pipe and hose assemblies

This document specifies a test method for determining the leaktightness of elastomeric sealing ring type joints for buried thermoplastics non-pressure piping systems.

Unless otherwise specified in the referring standard, the tests are carried out at the following basic test pressures:

1. p ₁: internal negative air pressure (partial vacuum);

2. p ₂: a low internal hydrostatic pressure;

3. p ₃: a higher internal hydrostatic pressure.

It also describes the following four test conditions under which the tests are performed:

1. Condition A: without any additional diametric or angular deflection;

2. Condition B: with diametric deflection;

3. Condition C: with angular deflection;

4. Condition D: with simultaneous angular and diametric deflection.

The applicable selection of the test pressure(s) and the test condition(s) is/are specified in the referring standard.