Explanatory notes
… impregnation, coating or covering cannot be seen with the naked eye (usually Chapters 50 to 55, 58 or 60); for the purpose of this provision, no account should be taken of any resulting change of colour; … provided that such coating or covering can be seen with the naked eye with no account being taken of any resulting …Legal note
… impregnation, coating or covering cannot be seen with the naked eye (usually Chapters 50 to 55, 58 or 60); for the purpose of this provision, no account should be taken of any resulting change of colour; … provided that such coating or covering can be seen with the naked eye with no account being taken of any resulting …