Tuyen, The ionic contamination testers work equally on RoHS and non-ROHS assemblies. You may find that the residues from RoHS-compliant boards do not dissolve as readily and so your boards may appear cleaner than they really are. I would suggest using ion chromatography per IPC-TM-650, method 2.3.28, to get a truer representation of how clean your assemblies are. Doug Pauls Rockwell Collins From: Tuyen Tran <[log in to unmask]> To: <[log in to unmask]> Date: 03/07/2014 07:00 AM Subject: [TN] Cleaning Tester for RoHS Product Sent by: TechNet <[log in to unmask]> Dear Technet I'm new here and I would like to ask question. We are manufacturing PCBA. Our challenge is the problem on testing clean. Our customer requested cleaning and testing ionic contamination for RoHS products, but we had only a cleaning tester (OMEGA METER SMD 600) which does work well for Non-RoHS product. Our question: Can we use the cleaning tester (OMEGA METER SMD 600) to test ionic contamination for RoHS product? is it compliant with RoHS regulation? We would dearly love to find a more elegant solution. Thanks you and Best regards Tuyen Tran (Ms.) - QAE Spartronics Vietnam Co.,Ltd ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________