Glenn -

No, thankfully, there are no longer any specifications which attempt to
establish minimum or maximum soldering temperatures.  These temperatures are
the responsibility of the assembly process engineer to establish and document
dependent on the flux, equipment, product and most importantly THE COMPONENTS
involved in the specific product.

For many years, a lot of us struggled with the fixed limits imposed by many
specifications, trying to solder products that were designed to a set of
performance goals which made them almost impossible to solder under those
limits.  When MIL-STD-2000, et.al., expired, the responsibility for
determination of correct soldering temperatures for all processes once again
became a task based on the actual materials and processes involved.

Specific temperature limits are normally determined from component
manufacturers data on their specific products.

Regards - Kelly

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