Test for Lead Contamination in Plaster, Cement or Stucco Surfaces
Plaster has been used on interior walls as a finish for over 150 years and is mostly comprised of calcium sulfate. Because some of the lead may bind to the sulfate in the plaster instead of the LeadCheck dye, the plaster may interfere with the Lead Check color developedment. It is sill possible to attain an accurate test using a minimal amount of care.
Supplies
- LeadCheck® Household Lead Test Kit
- Object to be tested for lead
Steps
- Cut a not into the paint down to the surface (see instructions). Try not to break or scratch the plaster surface.
- Clean the notch by brushing or blowing out any surface dust collected in the notched area.
- Activate the LeadCheck® Swab according to the standard instructions.
- Rub the swab tip in the notched area of the paint for about 30 seconds.
- Check the swab tip, paint surface and paint edge for a pink or red color development.
If no pink color develops, be sure to confirm negative result on the test confirmation card. If the confirmation dot does not turn pink immediately the test is not valid- surface dust has likely prevented the LeadCheck development. Repeat The test using a new LeadCheck® Swab.
Although the confirmation card is no longer a part of the product packaging, they can be sent to consumer on request.
If a yellow or orange color persists, barium has been detected.
If lead is identified in your home, then use these "lead safe practices":
- Get children tested even if they appear healthy.
- Wash children's hands, bottles, pacifiers, and toys often.
- Regularly clean floors, window sills, and other surfaces.
- Replace mini-blinds that test positive.
- Avoid using positively-tested dishes on a regular basis.
- Avoid using dishes that test positive for storage or for serving acidic foods.
- Don't leave toys that may contain lead in the sun.
- Never sand lead paint.
For a guide on reducing lead exposure when renovating or remodeling, ask for "Reducing Lead Hazards When Remodeling Your Home" published by the EPA. For further assistance consult a lead professional.