China National Standards

China Reference sources the GB Standards List


  •  China "Reference sources the" GB Standards List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 4129-2003 Acoustics--Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels
    声学 用于声功率级测定的标准声源的性能与校准要求
    China National Standards
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    GB/T 12128.2-1999 Reference sources for the calibration of surface contamination monitors--Part 2:Electrons of energy less than 0.15MeV and photons of energy less than 1.5MeV
    用于校准表面污染监测仪的参考源 第2部分:能量低于0.15MeV的电子和能量低于1.5MeV的光子
    China National Standards
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    GB/T 12128-1989 Reference sources for the calibration of surface contamination monitors--Beta-emitters and alpha-emitters
    用于校准表面污染监测仪的参考源 β发射体和α发射体
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