Before works, an expert:

• identifies any paintwork, coatings or varnish that may contain lead
   
• analyses materials with an X-ray fluorescence detector with a radioactive source,
   
•  or removes a flake of paint and sends it for laboratory analysis.
   

For small scale work, it may be assumed, as a precaution and for simplicity's sake, that the paint contains lead. In which case the necessary precautions should be taken during work.

• Check the directive from the Built Environment Toxicology Department regarding the detection of lead prior to works.