Home / Standards / GB/T 13694-2008 GB/T 13694-2008 Active General Specifications for α,βand γ Planar standard sources α、β和γ平面标准源通用技术条件 Standard Type GBT ICS 27.120.99 CCS F51 Status 现行 Issue Date 2008-06-19 Implementation 2009-04-01 Responsible Dept 国家标准委 Drafting Unit N/A