MIL-DTL-24402F(SH)
TABLE I. Qualification inspection.
Examination and tests
Requirement
Test method
Filter housings
Examination
Filter element removal
Shock
Housing pressure drop
Fatigue impulse 1/
Proof pressure 1/
Relief valve operation
Selector valve operation
and leakage
Check valve leakage
Burst pressure 1/
Differential pressure indicators
Examination
Shock
Vibration
Fatigue impulse 1/
Proof pressure 1/
Operation
NOTE:
1/
Fluid temperature and viscosity specified in 4.4 do not apply.
4.2.1 Test specimens. Test specimens shall be identified with the manufacturer s part number.
4.2.1.1 Filter housings and differential pressure indicators. Qualification tests shall be performed on one
specimen of each assembly and indicator for which qualification is desired. After completion of testing, each
specimen shall be permanently stamped to identify it as unsuitable for service.
4.2.2 Qualification by similarity. Qualification on the basis of similarity will be considered by the qualifying
4.2.2.1 Filter assemblies.
4.2.2.1.1 Assemblies without bypass relief. Qualification approval without additional testing will be
considered for an assembly which does not have a bypass relief based on the qualification approval of a similar
assembly that does have a bypass relief.
4.2.2.1.2 Assemblies with bypass relief. Qualification approval for an assembly with a bypass relief will be
considered based on the qualification approval of a similar assembly without bypass relief upon completion of
additional tests as specified by the qualifying activity.
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