BS 870:1950
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Specification for external micrometers
Hardcopy , PDF
30-11-2008
English
09-06-1950
Cooperating organizations
Foreword
Specification
Section one. General
1. Scope
2. Nomenclature
Section two. Micrometers
3. Material
4. General design of frame
5. Micrometer screw
6. Spindle
7. Thimble and barrel
8. Adjustments
9. Measuring faces
10. Accuracy
11. Zero setting
12. Case
13. Packing
14. Marking
Section three: Setting gauges
15. Material
16. General design
17. Accuracy
18. Packing
19. Marking
Appendices
A. Recommended methods of testing micrometers
B. Information to be supplied by the purchaser with
his enquiry
C. Testing of micrometers
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