Wax LHAMA certification, stone ASTMD4236, copybook LHAMA from August 13, 1995 began, regardless of paints, crayons, colored pencils, glue, etc., as part of the works of art, crafts, model or collectibles sales, or sales alone, as long as they can be used art, craft, model, or collectibles, CPSC will execute LAHMA demands on them. After being recognized ABT toxicology home to assess the art materials, and if the product has the potential to cause adverse health chronic poisoning, LHAMA provisions must be made to identify the following: (1) there is a warning word (2) the potential hazard representation ( 3) Chronic dangerous ingredient name '(4) The safe handling instructions (5) the name of allergens (6) Get the way health information (7), if necessary, should be added in the supplementary file more detailed technical data without even art materials chronic poisoning, but also on the product packaging and printed on "conform to ASTM D4236" (in line with ASTMD4236) logo, so that consumers aware of his product is purchased to meet the requirements.