Explanatory notes
… hypodermic syringes, artificial eyes, thermometers, barometers, hydrometers or other articles of Chapter 90; … or more silicates of calcium and lead, and accessorily of barium, aluminium, manganese, magnesium, etc. There are many … crystallisation. They are made by adding to the glass batch nucleating agents which are often metal oxides (such …Legal note
… hypodermic syringes, artificial eyes, thermometers, barometers, hydrometers or other articles of Chapter 90; …