Electronics Forum | Thu Sep 03 12:12:41 EDT 1998 | Dave F
| | | | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter, carbon bed,
Electronics Forum | Thu Sep 03 21:51:16 EDT 1998 | Dave F
| | | | | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter, carbon
Electronics Forum | Fri Sep 04 08:49:04 EDT 1998 | Ben Salisbury
| | | | | | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter, car
Electronics Forum | Wed Feb 02 16:36:22 EST 2000 | Mike Konrad
As the manufacturer of the Zero-Ion, I must correct one statement made by Dave F. According to the EMPF report sited in Dave�s response, �Static� based systems actually are more susceptible to carbon Dioxide adsorption than �Dynamic� based systems.
Electronics Forum | Mon Oct 11 13:22:04 EDT 1999 | Dave F
| Thank you all for your replies. I guess my age in this industry is showing. This military spec. does not appear to be in existance. So, let me make my request a little more to the point: | | Is anyone aware of a specification specifically refer
Electronics Forum | Thu May 31 21:45:48 EDT 2012 | davef
rsthompson ... if you're talking about bare boards IPC-5701, Users Guide for Cleanliness of Unpopulated PBC, Table 8 ||Bare board final surface finish Ions||Hot air solder level||OSP over copper||Gold over nickel Chloride||0.75 ug/cm^2||0.75 ug/cm^2
Electronics Forum | Fri Sep 04 09:51:34 EDT 1998 | Dave F
| | | | | | | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | | | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter,
Electronics Forum | Fri Sep 14 13:07:06 EDT 2001 | bschreiber
Dave, The saponifier (or any additive) will supply free ions and contaminate the DI water. If no contamination is introduced (very difficult) or if fresh hot DI water is constantly added as in a steam age chamber, the DI water will begin to obtain
Electronics Forum | Sat Oct 04 00:21:00 EDT 2003 | Dean
It would help to run a carbon, anion, cation, mixed-bed configuration with pure DI as the final rinse. IF your incomming water is really bad you can run a RO unit to "prepare" the water for ion exchange. Do you run omega meter or ionograph testing
Electronics Forum | Thu Aug 19 15:39:47 EDT 2004 | davef
This may sound dopey, but it may be the answer to your question. ROSE testers from different suppliers produce different results. Look at MIL-STD 2000. Based on Table VII, you find the following upper control limits (micrograms NaCl / sq. in.): * M
