China 'GB/T 24575-2009
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 24575-2009
Test method for measuring surface sodium,aluminum,potassium,and iron on silicon and epi substrates by secondary ion mass spectrometry 硅和外延片表面Na、Al、K和Fe的二次离子质谱检测方法
Issued Date:2009-10-30
Implemented Date:2010-06-01
Issued by:
The Standardization Administration of the People's Republic of China