Explanatory notes
… Kelvin within a temperature range of 0 °C to 300 °C 7017.90 - Other This heading covers glass articles of a kind in … Reference should be made to Explanatory Note to heading 90.27 for the rules governing the classification of … for example, acidimeters ( other than those of heading 90.25 ), galactometers, butyrometers, lactobutyrometers, and …