certificate of calibration校准证书
instrument type仪器类型
surpace resistance meter表面电阻测试仪
serial number序列号
date of calibration校准日期
range范围
this is to certify that the above instrument has been calibrated in accordance with our specifications,as set out using calibration equipment traceable to national standards and cad generated techniques.这是证明,上述仪器已校准按照我们的规格,如设置使用校准设备可追溯到国家标准和计算机辅助设计产生的技术。