… a change of temperature such as heating, cooking, roasting, distilling, rectifying, sterilising, pasteurising, steaming, …
Explanatory notes
… a change of temperature such as heating, cooking, roasting, distilling, rectifying, sterilising, pasteurising, steaming, … apparatus of heading 74.18 . (d) Apparatus for fractional distillation (for example, in the production of heavy water) …