A more in-depth discussion of commercially available time and frequency measurement equipment and standards, and how such instrumentation can be used in the metrologylaboratory.
市场上可用的时间频率测量设备和标准的更深入的讨论，以及此类仪器如何应用在计量实验室。
2
This article introduced that the concept and significance of both review of laboratory accreditation and metrology certification which were launched together.
介绍了实验室认可与计量认证的“二合一”评审的概念、意义。
3
NOTE 6 Traceability to national measurement standards does not necessarily require the use of the national metrology institute of the country in which the laboratory is located.