Trade Tariff Heading: 8540

Thermionic, cold cathode or photocathode valves and tubes (for example, vacuum or vapour or gas filled valves and tubes, mercury arc rectifying valves and tubes, cathode ray tubes, television camera tubes)

Commodity Description Duty Rate Status Save
8540910010 For use in certain types of aircraft 0.00 % Exists in SQL
8540910020 Thermionic electron source (emitter point) of lanthanum hexaboride (cas rn 12008-21-8) or cerium hexaboride (cas rn 12008-02-5), with electric connectors
- with or without a metal housing,
- with or without a graphite carbon shield mounted in a mini-vogel type system,
- with or without separate pyrolytic carbon blocks used as heating elements, and
- a cathode temperature of less than 1 800 k at a filament current of 1.26 a		 0.00 % Exists in SQL
8540910090 Other 0.00 % Exists in SQL
No match found for 8540710020 so setting active to 0 !!!
No match found for 8540890092 so setting active to 0 !!!

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