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Survey of chemical substances in toys for animals

Appendix F
1 Screening for azo dyes

1.1 Method of analysis

Stain test according to prEN 71-10:2002, Annex A.

The sample material in pieces of approximately 5 cm x 15 cm were analysed for stains by influence of artificial sweat. The samples were tested on a number of textiles under two different pH conditions.

The grade of staining is evaluated on a scale from 1 – 5, where 5 means "no staining".

1.2 Results of analyses

A total of 7 strongly coloured samples were selected for the analysis.

The scale is 1 – 5, where 5 is "no staining".

  Sample material
  Toy 3 Toy 16 yellow
  pH 5.5 pH 8.0 pH 5.5 pH 8.0
Staining on        
Acetate 4-5 4-5 4-5 4-5
Cotton 4-5 4-5 4-5 4-5
Polyamide 4-5 4-5 4-5 4-5
Polyester 5 5 4-5 4-5
Acryl 5 5 4-5 4-5
Wool 4-5 4-5 4 4-5

  Sample material
  Toy 16 green Toy 16 purple
  pH 5.5 pH 8.0 pH 5.5 pH 8.0
Staining on        
Acetate 4-5 4-5 4-5 4-5
Cotton 4-5 4-5 4-5 4-5
Polyamide 4 4 4-5 4-5
Polyester 4-5 4-5 4-5 4-5
Acryl 4-5 4-5 4-5 4-5
Wool 4 4 4-5 4-5

  Sample material
  Toy 31 yellow Toy 31 green
  pH 5.5 pH 8.0 pH 5.5 pH 8.0
Staining on        
Acetate 4-5 4-5 4 4
Cotton 4-5 4-5 4-5 4-5
Polyamide 4-5 4-5 4-5 4-5
Polyester 4-5 4-5 4-5 4-5
Acryl 5 4-5 4-5 4-5
Wool 4-5 4-5 4 4-5

  Sample material
  Toy 32
  pH 5.5 pH 8.0
Staining on    
Acetate 4-5 4-5
Cotton 4-5 4-5
Polyamide 4-5 4-5
Polyester 5 5
Acryl 5 5
Wool 4-5 4-5

The analysis does not reveal if the staining is caused by azo dyes, but only if the colours stain.

For further analysis in order to find the content of azo dyes, three samples which had been classified as "4" in the classification: Toy 16 yellow, Toy 16 green, and Toy 31 green.

 

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Version 1.0 June 2005, © Danish Environmental Protection Agency