Hi Cheryl,
There are some recommended maximum chloride levels at csl`s
web page(www.residue.com)
4.5 micrograms per square inch for final assemblies processed
with rosen fluxes
2.5 micrograms per square inch for final assemblies processed
with low solids (no-clean) fluxes
4.5 -5.0 micrograms per square inch for final assemblies
processed with water soluble fluxes
<2.0 micrograms per square inch for a bare board(tin-lead coated)
Rinsing water is one of the source in PWB manufacturing.
 Ilknur baylakoglu
On 25 Oct 01, at 16:36, Cheryl White wrote:

> Is there a standard for acceptable levels of chloride on assembled PCBs and
> on bare boards?  What sources of chlorides exist in a board fabrication
> process, and in an assembly process?
>
> We are using a no-clean low-solid flux.
>
> Thanks,
> Cheryl White
> Manufacturing Engineering
> DSC Ltd.
> [log in to unmask]
> (905) 760-3000 ext. 7228
>
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