ISO 2859-1 or Ansi ASQ Z1.4 in using AQL or AOQL - Need Help

S

Steve1152

#1
Hi,

I need some help on using AQLs versus AOQLs in ISO 2859-1 or Ansi ASQ Z1.4-2008. Is one method preferred?

What is most commonly used in electronic assembly type manufacturing?

Any other information that relates to this topic?

Thanks, Steve
 
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S

Sturmkind

#3
Hi, Steve!

I do not have the 2008 version of Z1.4, but the 1993 version pg. 5, paragraph 9.4 Obtaining Sampling Plan states "The AQL and the code letter shall be used to obtain the sampling plan from Tables II, III, or IV." AQL is Acceptable Quality Levels.

The Average Outgoing Quality Limit is a result of all incoming qualities for a given acceptance sampling plan and is the maximum of all AOQs (Average Outgoing Quality) related to that plan.

A good resource for this is Industrial Quality Control by Charbonneau & Webster.

Hope this helps!
 
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