世界各国计量机构面临着许多新的挑战，主要有几个方面。１分析化学向ＳＩ单位溯源的能力，如有可能向标准物质溯源。２信息技术软件质量管理；由数据处理系统、数据转换引起的不确定度的测试；硬件、软件通讯、数据保护的测试界面的确定和合格性。３医疗测量技术计... Metrological agencies in various countries in the world face many new challenges, mainly in several aspects. 1) Analyze the chemical’s ability to trace to SI units, traceable to standard materials, if possible. 2  information technology software quality management; by the data processing system, data conversion uncertainty caused by the test; hardware, software communication, data protection test interface to determine and pass. 3  medical measurement technology ...