Verification regulation of cesium beam frequency standard 铯束原子频率标准检定规程
2.
Verification regulation of rubidium gas cell frequency standards 铷原子频率标准检定规程
3.
Verification regulation of thermal voltage convertors in rf coaxial guide systems 射频同轴热电转换标准检定规程
4.
Certificate has been obtained from the hong kong standards and testing centre according to the requirements of the hksar fire department ppa 104 3rd revision 本产品通过香港标准检定中心检测,符合香港特别行政区消防产品规格ppa 104 a 3rd revision之要求。