Juan,

To qualify a cleaning process, depending on your requirements, I would suggest:

1. Visual cleanliness

2. Ionic contamination levels (Ionograph, omegameter, or equivalent)

3. Ion Chromatography - to determine the types of ionic contamination and their levels.

While there is no formal guide to certify a cleanliness process, these are the types of tests I used to qualify my processes in an aerospace environment.

I echo Joe's sentiments about checking the equipment and chemistry. I would also check for material compatibility. Some cleaning chemistries are more aggressive than others and could pose a danger to specific components and materials.

Hope this helps.

Good Luck.

Lee Whiteman, PMP
Senior Member Engineering Staff
L-3 Communications East
Telephone: (856) 338-3508
FAX: (856) 338-2906
E-Mail: [log in to unmask]
 
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Juan T. Marugán
Sent: Thursday, March 05, 2009 10:45 AM
To: [log in to unmask]
Subject: [TN] Cleaning equipment validation.

Hi,

We are going to change our cleaning equipment and I would like to know if 
there is a guide -or what tests can be carried out- to validate a new cleaning 
equipment.

We are using rosin fluxes for Class 3 products.

Thank you in advance for your help.

Juan T. Marugán
Indra Sistemas SA
Spain

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