Explanatory notes
… ‑ ‑ Other 9025.80 ‑ Other instruments 9025.90 ‑ Parts and accessories (A) HYDROMETERS AND SIMILAR FLOATING INSTRUMENTS … inventor (e.g., Baumé, Brix, Balling, Bates, Gay‑Lussac, Richter, Tralle, Sikes, Stoppani, etc.). Nicholson’s … tube is balanced by the weight of the atmosphere, and its rise or fall (indicated on a scale or on a dial with a …