This European Standard specifies requirements for the maximum amount and, in some cases, the maximum concentration of certain substances and mixtures used in experimental sets for chemistry and related activities.These substances and mixtures are:- those
DS/EN 71-4:2013 history
2021DS/EN 71-4:2021 Safety of toys – Part 4: Experimental sets for chemistry and related activities
2013DS/EN 71-4:2013 Safety of toys - Part 4: Experimental sets for chemistry and related activities
1990DS/EN 71-4:1990 Safety of toys. Part 4: Experimental sets for chemistry and related activities