BS EN 71-4-2020 pdf free download.Safety of toys Part 4: Experimental sets for chemistry and related activities
4 Chemical substances in experimental sets
4.1 Chemistry sets
4.1.1 Inclusion in the chemistry set
The chemical substances, mixtures and indicators given in Table 1 and Table 2 may be supplied in chemistry sets or in a supplementary set for a chemistry set up to the amounts and concentrations specified in those tables.
The quality of the chemicals used should be appropriate for the experiments described. In particular,the chemicals should not contain impurities or substances that allow undefined and dangerous reactions to occur.
Furthermore, colorants and colouring materials which are not specified in Table 2 may be supplied in chemistry sets if they do not react with the substances and mixtures of the set and if they do not fulfil the criteria of any of the following hazard classes:
— “acute toxicity” (hazard class 3.1),
— “skin corrosion/irritation” (hazard class 3.2),
— “serious eye damage/eye irritation” (hazard class 3.3),
— “respiratory or skin sensitisation” (hazard class 3.4),
— “germ cell mutagenicity” (hazard class 3.5),
— “carcinogenicity” (hazard class 3.6),
— “reproductive toxicity” (hazard class 3.7),
— “specific target organ toxicity — single exposure” (hazard class 3.8),
— “specific target organ toxicity — repeated exposure” (hazard class 3.9),
— “aspiration hazard” (hazard class 3.10).
Colorants which are permitted for use in food or cosmetics may be provided.
NOTE 1 The classification is detailed in Regulation (EC) No. 1272/2008 (Annex I, Part 3: Health Hazards).
Besides the chemical substances, mixtures and indicators given in Table 1 and Table 2 and colorants and colouring materials, only food additives and their mixtures (see Regulation (EC) 1333/2008 [5]) may be supplied in chemistry sets, if pure food additives are not classified as hazardous substances [1]
or mixtures are not classified as hazardous mixtures [1].
NOTE 2 Samples of rocks, stones, minerals on which to perform experiments in order to distinguish their composition are sometimes supplied with the set.
4.1.2 Inclusion for experiments (as mentioned in the instructions but not supplied in the chemistry set)
The use of reagents listed in Table 3 may be suggested in the instructions at concentrations not exceeding those specified in this table. The substances specified in Table 3 shall not be supplied in a chemistry set.
Apart from its presence in tincture of iodine, denatured alcohol (ethanol) shall not be supplied in a chemistry set. However, where experiments contained in the instructions of a chemistry set require it,the use of denatured alcohol may be suggested in the instructions.
The instructions for use may suggest the use of other substances that are not classified as hazardous substances [1] or mixtures that are not classified as hazardous mixtures [1] (e.g. sucrose, table sugar, starch or flour).
4.1.3 Requirements for packaging in containers
The substances and mixtures in Table 1 and 2 in a chemistry set or in a supplementary set of a chemistry set shall be supplied in containers (see 5.2.3) which are provided with closures (see 5.2.4.1).
If indicators are supplied in solution, their solid contents shall not exceed the amounts and concentrations specified in Table 2.
Non-bleeding indicators in books, pads or rolls are not of toxicological concern and are sometimes supplied without any quantity limitations for the relevant indicator(s).
If not mentioned otherwise, the maximum amounts of the solid substances in Table 1 and Table 2 refer to the anhydrous chemicals. Equivalent amounts of the hydrated chemicals may replace the anhydrous substances.
These pictograms are taken from Regulation (EC) No. 1272/2008 of the European Parliament and the Council of 16 December 2008 (also named GHS or CLP) on the classification, labelling and packaging of substances and mixtures. The use of these pictograms should comply with the requirements of Annex I to this regulation [1].
4.2 Crystal growing sets
The chemical substances given in Table 4 may be supplied in crystal growing sets or in a supplementary set for a crystal growing set up to the amounts specified in that table.
A crystal growing set shall only contain substances which cannot react between each other.
The quality of the chemicals used in crystal growing sets should be appropriate for the experiments described; in particular, the chemicals should not contain impurities or substances which allow
undefined and dangerous reactions to occur.BS EN 71-4 pdf download.