BS 6857 discusses paints. The aim of the BS 6857 is to provide methods for testing pigments for evaluating performance.
BS 6857 specifies the requirements and the corresponding methods of testing for cadmium pigments suitable for general use.
BS 6857 on paints is relevant to:
Cadmium pigment is an inorganic coloured pigment consisting predominantly of cadmium sulfide or of mixed crystals of cadmium sulfide and cadmium selenide, in which the cadmium may be partially replaced by zinc. Cadmium pigments help create brilliant yellow, orange, red and maroon pigments in paints and coatings.
BS 4313 provides a test method to determine the accurate quantity of strontium chromate pigments in paints during manufacturing. This shall ensure that the paint contains the required amount of cadmium pigments and that the paints possess the characteristics as per the requirements.