Remi wrote:
Hi. I've recently moved into an older house and I want to repaint some
rooms. I also need to strip some paint. Is there a test to determine if the
old paint contains lead? Also, if I find there is lead in the old paint,
what should I do? Thanks.

Qualitatitively, you might cook with hydrochloric acid (muriatic acid),
dilute, filter, and treat with sulfuric acid (battery acid). Lead
sulfate forms a white precipitate.