BS 9220 – Specification for rigid waveguide tubing of assessed quality: generic data and methods of test
Terminology and test methods relating to: (i) ordinary rectangular waveguide; (ii) rectangular waveguide with circular outside cross section; (iii) medium flat waveguide; (iv) flat rectangular waveguide; (v) circular waveguide; (vi) ridged waveguide; (vii) square waveguide; and rules for preparation of detail specifications.
