[2] ISO 8124—3:2020. Safety of Toys—Part 3: Migration of Certain Elements. International Standard.
[3] ASTM F963-2017. Standard Consumer Safety Specification for Toy Safety. American Standard.
[5] EN 71-3: 2019. Safety of Toys—Part 3: Migration of Certain Elements. European Standard.
[6] CPSC-CH-E1003-09.1. Standard Operating Procedure for Determining Lead (Pb) in Paint and Other Similar Surface Coatings. American Standard.
[7] CPSC-CH-E1001-08.3, Standard Operating Procedure for Determining Total Lead(Pb) in Children’s Metal Products (Including Children’s Metal Jewelry). American Standard.
[8] CPSC-CH-E1002-08.3. Standard Operating Procedure for Determining Total Lead(Pb) in Nonmetal Children’s Products. American Standard.