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ISO 13259 Test for pipe system leak tightness of elastomeric sealing ring type joints

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ISO 13259 Leak tightness test Thermoplastics piping for underground non-pressure stipulated determining method of the leak tightness of elastomeric sealing ring type joints buried thermoplastics piping. This standard specifies three basic test pressures for determining the leaktightness of elastomeric sealing ring type joints for buried thermoplastics non-pressure piping systems.


ISO 13259 Leakage tightness test machine. 

Unless otherwise specified in the referring standard, the methods pressures used are the following:

-   p1:  internal negative air pressure (partial vacuum);

-   p2:  a low internal hydrostatic pressure;

-   p3:  a higher internal hydrostatic pressure.


It also describes four test conditions under which the test can be executed, as follows:

A:   without any additional diametric or angular deflection;

B:   with diametric deflection;

C:   with angular deflection;

D:   with simultaneous angular and diametric deflection.

These conditions can be applied individually or in combination. The applicable selection of the method(s) and the condition(s) should be specified in the referring standard.

ISO 13259 Test for pipe system leak tightness of elastomeric sealing ring type joints


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