Standard No.:	GB/T 15078-2008
English Name:	Testing method for contact resistance of precious metals electrical contact materials
Chinese Name:	贵金属电触点材料接触电阻的测量方法
Chinese Classification:	H68    Precious metals and their alloys
Professional Classification:	GB    National Standard
ICS Classification:	77.120.99 77.120.99    Other non-ferrous metals and their alloys 77.120.99
Issued by:	AQSIQ; SAC
Issued on:	2008-03-31
Implemented on:	2008-9-1
Status:	superseded
Superseded by:	GB/T 15078-2021 Testing method for contact resistance of precious metals electrical contact materials
Superseded on:	2022-3-1
Superseding:	GB/T 15078-1994 Measuring method for contact resistance of precious metal electrical contact materials
Language:	English
File Format:	PDF
Word Count:	6000 words
Price(USD):	170.00
Delivery:	via email in 1~3 business day

本标准规定了贵金属及其合金电触点材料（静态）接触电阻的测量方法。本标准适用于贵金属及其合金电触点材料接触电阻的测量。其他金属及合金电触点材料也可参照使用。 本标准代替ＧＢ／Ｔ１５０７８—１９９４《贵金属电触点材料接触电阻的测量方法》。
本标准与原标准相比，主要变化如下：
———用于测量装置的直流电源、电位器、可调电阻，采用直流恒流源替代，优化了测量线路；
———试样的表面清洁处理更合理、科学。