这本书是关于如何设计、实施、维护和持续改进质量校准系统，包括所有要求的文件、可追溯性，以及任何公司（无论大小）拥有和使用的每一项测试设备的已知不确定性。这将有利于那些想要实施一项计划的公司，以及那些已经实施了一项计划的公司。

This book is about how to design, implement, maintain, and continuously improve a quality calibration system, with all the required documentation, traceability, and known uncertainty for each and every item of test equipment owned and used by any company, large or small. It will benefit companies that want to implement a program and also those that already have one in place.