TechNetters:

A student of mine has asked, what is the shelf life of flux cored
solder?

In reviewing J-STD-001 and J-STD-004 I can't find any specific guidance
or requirements from the Standards. I know newer rolls of solder
(depending upon the manufacturer) have date codes and expiration dates.

However, they have a wire solder spool still being used today that was
entered into their HazMat system in 1998 (no actual record of the
precise date of manufacture). The wire spool is removed from their
HazMat system when needed to uncontrolled/undocumented working
environments within their facility. Since the standards don't specify a
shelf life, what is considered best industry practices or is there a
Standard dealing with this issue?

Thanks for your responses.

Gregg A. Owens
Master IPC Trainer
Executive Director
Manufacturing Technology Training Center, Inc.
Mira Loma, CA 91752 USA
www.mttc-inc.com


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