Standard No.:	JB/T 10007-1999
English Name:	Large external micrometer
Chinese Name:	大外径千分尺（测量范围为 1000mm～3000mm）
Chinese Classification:	J42    Measuring tool and instrument
Professional Classification:	JB    Professional Standard - Machinery
ICS Classification:	25.060.20 25.060.20    Dividing and tool-workpiece holding devices 25.060.20
Source Content Issued by:	National Technical Committee on Standardization of Metering Instrumentation
Issued on:	1999-5-20
Implemented on:	2000-1-1
Status:	superseded
Superseded by:	JB/T 10007-2012 Large ecternal micrometer
Superseded on:	2012-11-1
Abolished on:	2012-11-01
Superseding:	ZB J42004-1987
Target Language:	English
File Format:	PDF
Word Count:	4000 words
Translation Price(USD):	120.0
Delivery:	via email in 1~3 business day

JB/T 10007-1999 本标准是对 ZB J42 004-87《大外径千分尺（测量范围为 1000mm 至 3000mm）》的修订，修订时仅按有关规定作了编辑必修改，主要技术内容未改变。 本标准规定了大外径千分尺的型式和尺寸，技术要求，标志与包装等。 本标准适用于分度值为 0.01mm、测微螺杆螺距为 0.5mm 或 1mm、量程为 25mm 或 50mm、测量范围为 1000～3000mm 的大外径千分尺。 本标准于 1987 年首次发布。