GB/T 8320-2003 铜钨及银钨电触头 国家标准(GB) GB/T8320-2003 本标准规定了铜钨及银钨电触头的要求、抽样、试验方法、标志、和包装。本标准适用于粉末压制烧结及溶渗工艺生产的铜钨及银钨电触头，这些产品主要应用于高、低压电器产品中。
ASTM B702-1993(2004) 铜钨电触点材料标准规范
1.1 This specification covers electrical contact components made from copper tungsten by powder metallurgical procedures.
1.2 This specification covers compositions within the copper tungsten system normally specified by users of contacts.
1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.4 It is the responsibility of the user to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet for this product/material as provided by the manufacturer.