Testing Methods

The following are approved testing methods: (A) Testing with X-Ray Fluorescence Analyzer. Lead inspectors shall operate the instrument in conformity with the manufacturer’s instructions and training and educational materials approved by the Director. The instrument’s standardization must be verified at least once a day when the instrument is being operated, or more often if so specified by the manufacturer, and a logbook must be maintained of all readings made during standardization verification. (B) Testing with 6% to 8% Sodium Sulfide Solution. Lead inspectors and code enforcement lead determination inspectors shall use sodium sulfide solution in conformity with instructions in training and educational materials approved by the Director. This test shall not be performed directly on iron or copper pipes, railings or radiators, or other metal surfaces. (C) Any other method approved in writing by the Director.