… black), whether or not chemically defined; preparations as specified in Note 3 to this Chapter based on colouring …
Explanatory notes
… black), whether or not chemically defined; preparations as specified in Note 3 to this Chapter based on colouring … or of animal origin, by steeping them in water or in weak acid or ammonia solution or, in the case of certain … materials and generally contain one or more colouring principles with small quantities of other substances …