Numbers of units tested for Material/Performance Test - PPAP manual chapter 2.2.10.1

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Oskar_S

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PPAP chapter 2.2.10.1-2 states that you have to conduct material and performance test for all material or performance specifications. These test shall be done on parts from a significant production run. How many units should you test, must it be proved with statistical analysis or is it sufficient with testing 2 units? In my case my company produces heat exchangers with pressure and performance specification. As we need PID approvals pressure testing (burst testing) are carried out by a third part on all new products, but we also conducts some fatigue testing (this takes up to 2 weeks for one unit). We don´t have the test capacity to test enough units for statistical analysis.
 
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Re: Numbers of units tested for Material/Performance Test - PPAP manual chapter 2.2.1

This is usually done with agreement from the customer.
Is there no definition of the actions required by you to validate the parts?

Ask the customer what he needs this will be the best way
 
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