China 'GB/T 21098-2007
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 21098-2007
Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 4: Guidelines and general information 灯头、灯座及检验其安全性和互换性的量规 第4部分:导则及一般信息
Issued Date:2007-09-05
Implemented Date:2008-05-01
Issued by:
The Standardization Administration of the People's Republic of China