Electronics Forum | Thu Oct 07 15:21:27 EDT 1999 | Scott S. Snider
| Is anyone aware of a web page for military spec's? I am looking for Mil-P-28809. | | Thanks, | Mike Demos | I'm trusting my memory on this which often times leads me astray.. Didn't that spec have something to do with cleaning. It seemed the
Electronics Forum | Tue Jul 27 13:50:52 EDT 1999 | Mike Konrad
Aqueous Technologies manufactures the Zero-Ion ionic contamination tester. The Zero-Ion utilizes dynamic-based technology and has been assigned the highest equivalency value by the NAWC. It is among the most sensitive of all of the military-approved
Electronics Forum | Fri Dec 06 10:16:57 EST 2002 | davef
Bare board cleanliness is still primarily measured by resistivity of solvent extract (ROSE) using instruments such as Omegameters and Zero Ions. What is considered as "acceptable" cleanliness varies between specification and from company to company.
Electronics Forum | Sun May 09 16:25:00 EDT 2004 | gabriele
Military and most commercial standards requires > post-soldered boards to measure less than 10 > �g/in of NaCl (14 when using an Omegameter, 20 > on a Ionagraph, and 37 on a Zero-Ion). > > As Dave > stated, 6.5 �g/in of NaCl is called out in >
Electronics Forum | Tue Oct 07 01:02:25 EDT 2003 | Hoss
Adam, I can't disagree with Pete that an Ionic contamination test may ID the affected boards. However, if you have a large number of boards to test, this may not be the answer. Omegameter testing takes 10-15 minutes per unit if memory serves. On
Electronics Forum | Sun Feb 01 18:24:52 EST 2004 | Dean
Ok, maybe I'm missing something here: It's a no clean flux type AND your going to wash it? Why not migrate to OA Flux and just run DI water with Ion-Exchange beds? Benefits: No need for ultrasonics No need for chemical isolation No need for cleani
Electronics Forum | Tue Aug 31 15:43:41 EDT 2004 | davef
You�re asking the wrong person to give remedial math lessons. Anyhow, here we go: * [1.56 microgram NaCl/cm^2]*[2.54 cm/in]*[2.54 cm/in] = 10.06 microgram NaCl/in^2 * [Omegameter] / [MIL-P-28809 Beckman / Markson] = [10.06 microgram NaCl/in^2] / [GS
Electronics Forum | Tue Nov 02 14:34:29 EST 2004 | bpevear
I agree with DaveF's recommendation to see Foresight's website (www.residues.com). They have excellent Case Studies on display (for free). There is a good case study which references the results you can expect using a ROSE tester vs other control met
Electronics Forum | Sat Nov 06 06:22:53 EST 2004 | GS
Many Thanks Davef for your continuos great tech support. From my side, I am still fighting against BIC coming with sockets ( still tons of Br-). Even the supllier is surprised about this pbm. But as we know no Standards available to control bulk ion
Electronics Forum | Thu May 15 19:36:56 EDT 2008 | davef
Q1: static or dynamic? A1: search the fine SMTnet Archives. For instance, http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=44837 Q2: localized testing (C3) or bulk testing (Omegameter/Zero Ion)? A2: depends on the contamination that you're
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