BS EN 71-12:2016 pdf free download

BS EN 71-12:2016 pdf free download.Safety of toys Part 12: N-Nitrosamines and N-nitrosatable substances.
BS EN 71-12 specifies the requirements and test methods for N-nitrosamines and Nnitrosa table substances for:
— toys and parts oltoys made from elastomers and intended [or use by children under 36 months;
— toys and parts of toys made from elastomers and intended to be placed in the mouth;
— finger paints for children under 36 months.
EXAMPLE Examples of toys made from elaswmers are balloons and teethers.
NOTE With regard to elastomers, up to now N-nitrosamines and N-nitrosatable substances have mainly been detected in vulcanized materials.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN ISO 3696, Water for analytical laboratoiy use – Specification and test methods (ISO 3696)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
4 Requirements
4.1 Requirements for finger paints
The concentration of N-nitrosarnines in finger paints shall not exceed 0.02 mg/kg when tested in accordance with 7.2 and Clause 8, calculated as sum of all detected N-nitrosamines according to 9.1.
The migration of N-nitrosa table substances from finger paints shall not exceed 1 mg/kg of toy material, calculated as sum of all detected N-nitrosamines after nitrosation.
At least the substance in Table 1 shall be determined in finger paint. If there are indications of the presence of other N-nitrosamines, they shall also he determined.
4.2 Requirements for elastomers
The migration of N-nitrosamines (calculated as sum of all detected N-nitrosamines according to 9.2) and of N-nitrosa table substances (calculated as sum of all detected N-nitrosamines after nitrosation) from toys or parts of toys shall not exceed the limit values specified in Table 2 when tested in accordance with 7.3 and Clause 8.
5 Principle
N-nitrosamines and Nnitrosatable substances migrate into a test solution. N-nitrosatabIe substances are converted to Nnitrosamines by acidification. The final test solutions are analysed for N-nitrosamines by a suitable validated analytical technique. The N-nitrosamines and N-nitrosatable substances are expressed in mg/kg of sample.
The test solution for Nnitrosamines in finger paints is water. The test solution for N.nitrosatable substances in finger paints and for N-nitrosamines and N-nitrosatabie substances in elastomers is saliva test solution.
6 Reagents and apparatus
6.1 Reagents
Unless otherwise specihed, all reagents shall be ot analytical grade and distilled water, or water ot equivalent purity conforming to at least grade 3 of EN ISO 3696.
6.1.1 Sodium hydrogen carbonate (CAS 144-55-8)
6.1.2 Sodium chloride (CAS 7647-14-5)
6.1.3 Potassium carbonate (CAS 584.08-7)
6.1.4 Sodium nitrite (CAS 7632-00-0)
6.1.5 Hydrochloric acid (CAS 7647-01-0), aqueous solution, ci1U4 = u.1 moi/i.BS EN 71-12 pdf free download.