CPSC's definition of lead-based paint?

• A. 0.06% or 600 ppm
• B. 0.1% or 1000 ppm
• C. 0.02% or 200 ppm
• D. 0.5% or 5000 ppm

Answer: (A)

Lead-based paint is defined by the CPSC as paint that contains lead at or above 0.06% by weight, which equals 600 parts per million. This threshold is used to determine whether a coating is considered lead-based for regulatory and hazard assessment in housing and consumer products. Measurements are by weight, typically through laboratory analysis or XRF readings calibrated to percent by weight. So if a paint sample tests at 0.06% lead or higher, it is classified as lead-based under CPSC criteria; if it tests below that, it does not meet that definition. The other figures (0.1%, 0.02%, 0.5%) do not match the CPSC standard.