JIS B 7503:2017规定了刻度间隔为0.01 mm、0.005 mm、0.002 mm和0.001 mm的机械千分表的设计规范(设计特征)和性能(计量特征)。
JIS B 7503:2017 specifies the design specification (design characteristics) and performance (metrological characteristics) of mechanical dial gauges with scale intervals of 0.01 mm, 0.005 mm, 0.002 mm and 0.001 mm.