From:
Filiberto Palacios <00001f5128a5fa0b-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject:
[DCHAS-L] Lead-Based Soldering
Date:
Oct 23, 2026 17:34 UTC
Reply-To:
ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
In-Reply-To:
Good Morning,
I wanted to ask the listserv for assistance with a topic that was recently brought to my attention at my institution. I recently discovered that we have a lab that has in the past performed tin/lead soldering with traditional flux and our University Lab Safety and Biosafety Committee asked that they switch to non-lead-based soldering for safety concerns. The instructor of the course has let me know that he has in the past built in a safety procedure to have students wash their hands following lead-based soldering to prevent potential exposure. There is a snorkel in the room which can be used for ventilation purposes but the working space is limited for the number of students in the class. Since switching to non-lead based soldering, the instructor has reported issues with the fumes generated from the flux to the point that students have stopped their work and/or soldering was completely removed for the day. Given the tradeoffs with either side, how has your institution handled the topic of soldering? What safety requirements are implemented when it comes to lead-based soldering? Thank you!
-- Best,
Filiberto Palacios, MPH, CPH | Laboratory and Research Safety OfficerDivision of Academic Affairs, Department of Biology and Chemistry, Azusa Pacific UniversityAzusa Pacific University PO Box 7000, Azusa, CA 91702-7000(626) 815-6000 - Ext. 6072 | apu.edu“Do not conform to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God’s will is—his good, pleasing, and perfect will.” Romans 12:2
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