Per J-Std-001A (I didn't have a copy of B), paragraph 5.3:

...shall be analyzed, replaced, or replenished at a
frequency to ensure compliance with the limits specified in
Table 5-1 (same table as QQ-S-571).   The frequency of
analysis should be determined on the basis of historical
data, or monthly analyses.  If contamination exceeds the
limits of Table 5-1, intervals between the analyses,
replacement or replenishment shall be shortened.  Records.....

So what does that mean?  I've been wave soldering for over 10 years
and have never had a wave solder pot out of limit using 30-day intervals
(time to lengthen analysis time).

Al Kreplick
Teradyne, Inc.
617-422-3726

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