Hollow metallic waveguides - General requirements and measuring methods Ingestion-build-251241 Method C may be used

Method C may be used to determine the degree of anisotropy by testing in different orientations

— specifies requirements for finished wallpapers

BS EN 61191-3:2017 supersedes BS EN 61191‑3:1999

BS EN 17116-4 on washer-extractors is useful for:

With obedience and compliance to BS EN 60843-3

Hollow metallic waveguides - General requirements and measuring methods Ingestion-build-251241 Method C may be used1 Scope This part of IEC 60153 specifies straight hollow metallic tubing for use as waveguides in electronic equipment. It covers: a) the details necessary to ensure compatibility and, as far as essential, interchangeability; b) test methods; c) uniform requirements for the electrical and mechanical properties. It should be noted that no recommendations are made for the materials to be used for waveguides. The choice of material is agreed between