IS 5921 Pt.1-1983

标准号：IS 5921 Pt.1-1983
发布日期：1983/11/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This standard ( Part 1 ) prescribes general requirements and methods of testing electrical, mechanical, climatic and other properties of metal-clad base materials in sheet form for application in the field of printed circuits in telecommunication and allied electronic equipment, irrespective of the nature of the insulating base material.1.2 The methods given herein for the preparation of test sample and specimens are complete for copper-clad materials only. They may be expanded in future to cover materials clad with other metals.1.3 This standard also covers multi-layer metal-clad base materials.