… scale‑reading devices or transmitters with an electrical, pneumatic or hydraulic output. Measuring or checking … and drum or be converted into an electrical signal. (2) Pneumatic and hydrostatic type . These are used to measure …
… . (1) Sodium sulphates include : (a) Disodium sulphate (neutral sulphate) (Na 2 SO 4 ). Occurs in the anhydrous or … etc. Natural sodium sulphates (glauberite, bloedite, reussin, astrakhanite) are excluded ( heading 25.30 ). (b) …
