标准摘要
[中文适用范围]： 该测试专门针对某些类型的触点和连接（焊接或钎焊类型除外）。该测试用于研究贵金属或贵金属镀层触点对接触电阻的影响并连接 [外文原描述]： May be used as an acceptance test in type approval of components or equipment from a supplier or to compare materials, processes or designs.
英文名称Basic environmental testing procedures - Part 2-49: Tests - Guidance to test Kc: Sulphur dioxide test for contacts and connections