> In an effort to improve PWA reliability and meet the requirements of a
> particular customer, we adopted J-STD-001 Class 2 as our default assembly
> requirement.  This imposes J-STD-002 for solderability testing.
>
> We view the requirements as somewhat intensive and wonder what standard
> industry practice is.
>
> If you have military or aviation based experience I would really appreciate
> hearing from you.
>
> My questions are:
> 1) Is there a minimum period of time after component manufacture that
> solderability testing is not necessary?  It seems strange that component
> manufacturers are required to meet functional and performance requirements but
> not solderability.
> 2) Is J-STD-002 Category 1 (no Steam Ageing Requirement) the industry norm?
> 3) What is the least expensive way to meet solderability test requirements?
> 4) What are acceptable sampling criteria, especially for reeled components?
> 5) Would it be reasonable to request J-STD-001B requirements 5.2, 5.4 be
> tailored to restrict the solderability requirements to apply to parts
> manufactured more than 2 years prior to use but excluding newer parts
> *     on the basis that we are consistently producing Class 2 product and
> *     that our date code policy requires use of components within two years of
> manufacture.
>
> Note:  Most of our component purchases are for pre-bent and pre-tinned
> commercial components.
>
> Your comments and recommendations are most appreciated.
>
> Jim Wiggers