AS B294-1970过渡
Plain setting rings for internal measuring equipment (inch series)
出版：Standards Australia
专家解读视频
基本信息
标准编号： AS B294-1970
标准类别：Standard
出版单位：Standards Australia
标准页数：10
标准简介
Covers rings for setting instruments used for precision measurement of internal diameters by two-point or three-point contact methods, in a range of diameters from 0.08 in. to 6 in. It establishes a series of blank sizes; defines material, its heat treatment and hardness; and specifies requirements for working surface with respect to finish and accuracy. Three grades of accuracy are provided for. For metric series rings see AS 1001.
本标准替代的旧标准
