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DISCONTINUED -Detection of Lead Paint Test Kit
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This kit provides the equipment and reagents you need to perform reliable multi-step laboratory tests for detecting lead content in paints. The sulfide test, a sensitive preliminary screening test, quickly identifies paint samples that may contain lead (but may instead contain only traces of cobalt or other innocuous metals that yield a false positive with the sulfide test). Samples that test tentatively positive with sulfide reagent can subsequently be subjected to confirmatory tests with chromate and iodide reagents, each of which produces a characteristic precipitate in the presence of lead. The kit also includes a standard lead solution, 50 mg/mL with respect to lead, that can be used to calibrate the other reagents to give a semi-quantitative indication of the amount of lead present in samples.
Sufficient amounts of each consumable item are included to run preliminary and confirmatory tests on at least 50 suspect paint samples. With the exception of the sulfide reagent, which once mixed may be stored refrigerated for several days, the other reagents have indefinite shelf lives. Please note: We cannot ship chemicals outside of the USA. No foreign orders please.
View the directions in the Make:Science Room!
Acetic acid, glacial (25 mL)
Lead standard solution, 50 mg/mL (10 mL)
Pipettes, disposable (5)
Reaction plate, 12-well (2)
Test reagent, chromate (10 mL)
Test reagent, iodide (10 mL)
Test reagent, sulfide (five packets to make 5 mL each)
Vial with screw cap
Needed but not included:
Goggles, gloves, and protective clothing
Sharp knife, single-edge razor blade, or fine sandpaper
Cotton balls (as required)
Paper, white copy
Distilled water (from supermarket)
Samples to be tested
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