一、绪言在计量工作中计量单位标准的传递必须考虑到工业生产的需要。这就是说保存标准的基准实验室当确定在研究标准传递中应遵循的方向时,应考虑生产的水平。另一方面,生产厂家的需要是从其产品质量的要求出发的,近几年来国际竞争和国内的需要,主要是社会安全、医学、环境等方面的 I. INTRODUCTION The transfer of standard units of measurement in measurement work must take into account the needs of industrial production. This means that standards-based benchmarks should consider the level of production when determining the direction to be followed in the transmission of research standards. On the other hand, the needs of manufacturers are based on the requirements of their product quality. In recent years, the international competition and domestic needs are mainly based on aspects of social security, medicine and the environment