China 'GB/T 37406-2019
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 37406-2019
Detection method of degree of sphericity of spherical silica for electronic packaging—Particle dynamic photoelectric projection method 电子封装用球形二氧化硅微粉球形度的检测方法 颗粒动态光电投影法
Issued Date:2019
Implemented Date:2019-12-1
Issued by:
The Standardization Administration of the People's Republic of China