标准号:IS 4493 Pt.1-1979
发布日期:1980/11/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围: This standard (Part I) prescribes general requirements and methods of test for hollow metallic tubing for use as waveguides in electronic and telecommunication equipment.Note — Requirements for elliptical waveguides are under consideration.