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Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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
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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
External micrometers with fixed anvils having measuring ranges of 0 to ½ in and 0 to 13 mm, and 1 in and 25 mm up to maximum sizes of 24 in and 600 mm respectively. Includes external micrometer with interchangeable anvils for alternative measurement ranges. Material, design of frame, micrometer screw, spindle, thimble and barrel, adjustments, measuring faces, accuracy, packing and marking; setting gauges (material, general design, accuracy); test methods appended.
| Committee |
TPR/1
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| AS B75-1952 | Identical |
| UNE-EN ISO 18771:2021 | Identical |
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