China 'GB/T 15972.20-2021
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 15972.20-2021
Specifications for optical fibre test methods-Part 20:Measurement methods and test procedures for dimensions- Fibre geometry 光纤试验方法规范 第20部分:尺寸参数的测量方法和试验程序 光纤几何参数
Issued Date:2021/4/30
Implemented Date:2021/11/1
Issued by:
The Standardization Administration of the People's Republic of China