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| Ask the Experts |
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August 7, 2006 - Updated
July 5, 2007 - Originally Posted
Aqueous cleaner water tested for the Lead
Is it necessary to have the water in your aqueous cleaner tested for the Lead Free banned substances? Mercury, Cadmium, Hexavalent Chromium, Polybrominated Biphenyls (PBB), Polybrominated Diphenyl Ethers (PBDE).
Ray Whittier
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| Expert Panel Responses |
Discharge water from an aqueous cleaning system should be tested for any banned or limit controlled substances. I doubt you will find any of the other RoHs substanses in the discharge water. Most regions are concerned about substances not common in de-fluxing applications. Historically, lead (in solution and in particulate form) was the primary concern. Ph can be a concern in some regions. Consult with your local regulators to be sure as specific toxic "deal-breakers" vary from city to city.
Mike Konrad
President
Aqueous Technologies
Mr. Konrad has been in the electronic assembly equipment industry since 1985. He is founder and CEO of Aqueous Technologies Corporation, a manufacturer of automatic de-fluxing equipment, chemicals, and cleanliness testing systems.
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ASYMTEK Select Coat SL-1040
The SL-1040 Conformal Coating System upgrades the SL-940 and added significant system-level advancements to elevate automation, control, precision & preventative maintenance for better yield.
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