Rudolph,
Please check old responses to this question in the Technet archives.

Short answer; there are no pass/fail criteria for this test for no clean
fluxes as many of the ions detected by this methods are from the
dissociation of carboxylic acids, rather than (I guess this answer isn't so
short after all) the nastier halides or sulphate.   What you can do with
this test for no-cleans is find out whether you are giving your boards a
flux bath - use it as a green/yellow light, rather than a green/red light.

regards,
Bev Christian
Nortel

> ----------
> From:         Rudolph Yu[SMTP:[log in to unmask]]
> Sent:         Wednesday, November 11, 1998 12:19 PM
> To:   [log in to unmask]
> Subject:      [TN] need test lab for no clean process
>
> Does anyone know if there is a test lab in  San Jose,CA which can test
> for the ionic contamination level on assembly?
> Also do you think I should  use the 10.06 mg NaCl/ in^ as the limit for
> a no clean process?
>
> Thank you for reading this mail
>
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