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CEN has published EN 71-4:2020 for experimental sets for chemistry and related activities. Conflicting national standards are to be withdrawn by December 2021.
CEN has published EN 71-4:2020 for experimental sets for chemistry and related activities. Conflicting national standards are to be withdrawn by December 2021.
In December 2020, the European Committee for Standardization (Comité Européen de Normalisation, CEN) published EN 71-4:2020 ‘Experimental sets for chemistry and related activities’. This method defines the requirements for the maximum quantity or concentration of certain substances and mixtures that are used in experimental sets for chemistry and related activities, including crystal growing sets, carbon dioxide generating experimental sets and supplementary sets.
Highlights of several important changes in EN 71-4:2020 when compared to the 2013 version are summarized in Table 1.
| EN 71-4:2020 ‘Experimental Sets for Chemistry and Related Activities | ||
|---|---|---|
| Section | Title | Highlights of changes |
| Clause 1 | Scope |
|
| Clause 4.1.1 | Inclusion in the chemistry set |
|
| Clause 4.1.2 | Inclusion for experiments (as mentioned in the instructions but not supplied in the chemistry set) |
|
| Table 1 | Maximum amounts of chemical substances and mixtures for chemistry sets and labeling |
|
| Table 2 | Maximum amounts and concentrations of indicators for chemistry sets and labeling |
|
| Table 3 | Maximum concentration of reagents not supplied with chemistry set and labeling |
|
| Table 4 | Maximum amounts of chemical substances for crystal growing sets and labeling |
|
| Table 5 | Maximum amounts of chemical substances for carbon dioxide generating experimental sets and labeling |
|
| Clause 5.2.4 | Packaging and closures |
|
| Clause 5.2.4.2 | Crystal growing sets |
|
| Clause 5.5 | Eye protection |
|
| Clause 8.3.3 | Carbon dioxide generating experimental sets |
|
| Annex A to EN 71-4:2013 | Test methods for closures of reagent containers |
|
| Annex A | Rationale |
|
Table 1
According to EN 71-4:2020, this standard will be given the status of a national standard by June 2021 and conflicting national standards are to be withdrawn by December 2021 at the very latest. This standard is expected to be harmonized under Directive 2009/48/EC (Toy Safety Directive, TSD), upon official acceptance by the European Commission (EC) and by publication in the Official Journal of the European Union (OJEU).
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