While it is imperative to test and inspect paint, old cookware, ceramics and porcelain fixtures in your home that were manufactured before the 1980s, it can be reccomended to test all ceramic tiles and bathtub/sink fixtures.
Hazardous levels of lead in glaze found in wall and floor ceramic tile, cast iron and steel bathtubs/sinks has NEVER been regulated and is still being used today even in USA made products!
ASSUMING and Self-Test Kits will result in additional work and charges that are not necessary. The actual amount of lead present needs to be determined before spending increased prices for unecessary. Self-Test kits do not provide the reliable lead levels needed to determine the projects requirements.