How is lead-based paint defined in this context?

How is lead-based paint defined in this context?

• A. Any paint containing any detectable lead.
• B. Paint, varnish, shellac, or other coating on surfaces that contain 1.0 mg/cm^2 or more of lead or 0.5% or more lead by weight.
• C. Only exterior coatings with lead.
• D. Any coating containing lead fragments.

Answer: (B)

Lead-based paint is defined by specific lead content thresholds in the coating. A surface coating qualifies if it contains 1.0 mg of lead per square centimeter of surface or if it contains 0.5% lead by weight. This applies to paint, varnish, shellac, or other coatings on any surface, interior or exterior. These two criteria give two ways to meet the definition: a measured surface-density of lead or a measured weight-percent of lead in the coating. The other options aren’t correct because a coating can have trace amounts below these thresholds and not be considered lead-based, the definition isn’t limited to exterior coatings, and it isn’t about lead fragments.

Lead-based paint is defined by specific lead content thresholds in the coating. A surface coating qualifies if it contains 1.0 mg of lead per square centimeter of surface or if it contains 0.5% lead by weight. This applies to paint, varnish, shellac, or other coatings on any surface, interior or exterior. These two criteria give two ways to meet the definition: a measured surface-density of lead or a measured weight-percent of lead in the coating. The other options aren’t correct because a coating can have trace amounts below these thresholds and not be considered lead-based, the definition isn’t limited to exterior coatings, and it isn’t about lead fragments.