On Tuesday, December 1, 2015 at 10:28:49 AM UTC-5, N_Cook wrote:

I know from someone in the medical electronics field, that is extremely
difficult , if not impossible, to guarantee that PbF components do not
get into the derogated product stream, without sample chemical testing
of each batch of componnts, done themselves. The supposed accredited
documentation is easily compromised and cannot be relied on. With all
the extra markup on derogated components, plenty of motive.

There are multiple exemptions for medical and certain industrial devices through 2019.

Peter Wieck
Melrose Park, PA