We sell craft materials, some packages of beads can have 12 or more colors of beads. Can we composite 3 or more colors at a time to test the beads?
No. Compositing to combine different paints or substrates from one or more samples to reduce the number of tests run may fail to detect excessive levels of lead in one individual paint or substrate because of the effect of dilution by non-lead-containing samples. This approach is therefore currently not acceptable. The only exception to compositing is when labs have to combine like paint from several like parts or products to obtain a sufficient sample size for analysis because there is an insufficient quantity of paint on one item to perform the testing. Back to FAQ Page Are chemistry sets, science education sets and other educational materials excluded from the lead limits for content and paint and surface coatings if they bear adequate labeling under 16 C.F.R. 1500.85? 16 C.F.R. 1500.
No. Compositing to combine different paints or substrates from one or more samples to reduce the number of tests run may fail to detect excessive levels of lead in one individual paint or substrate because of the effect of dilution by non-lead-containing samples. This approach is therefore currently not acceptable. The only exception to “compositing” is when labs have to combine like paint from several like parts or products to obtain a sufficient sample size for analysis because there is an insufficient quantity of paint on one item to perform the testing. Are chemistry sets, science education sets and other educational materials excluded from the lead limits for content and paint and surface coatings if they bear adequate labeling under 16 C.F.R. 1500.85? 16 C.F.R. 1500.85 provides that certain articles that are intended for children for educational purposes are exempt for classification as a banned hazardous substance under the FHSA and the lead limits under CPSIA if the functional
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