前言为了对应变测定器的用语、性能、连接器等实际情况进行调查和规格案的制定,在1967年10月成立了409小委员会。此委员会对标准靜应变发生器,从1968年5月到1973年2月经过十数次研究,制定了规格试案。此规格,在原案制定委员会对前述试案,进行了慎重审议,经第4分科和第4标准化委员会的审议在1974年1月17日标准化部会议上被承认公布。 Foreword In order to investigate the actual conditions of strain gauges, performance, connectors and specifications, a small commission of 409 was formed in October 1967. The committee developed standard test cases for standard static strain generators from May 1968 to February 1973 after dozens of studies. This specification was carefully examined in the original case formulation committee for the aforementioned trial and was admitted to the standardization department meeting on January 17, 1974 when it was considered by Division 4 and 4th Committee of Standardization.