Monday, November 30, 2020

PCB copper lead test

Lead test of exposed PCB copper layer

I have several of the 3M Lead Check tests and used one on the exposed copper layer of a PCB. 

As expected there was no reaction. Which is good since I've been carrying this Feegle XS around with me for a while now.

A patina has formed on the copper surface. I replaced the steel screws with some brass ones, the outline of the old screws is still visible.