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Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Specification for external micrometers
Hardcopy , PDF
11-30-2008
English
06-09-1950
Important note : All end users must be registered with an Account prior to user licenses being assigned.
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
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Superseded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 |
| BS 1881-206:1986 | Testing concrete Recommendations for determination of strain in concrete |
| 08/30177718 DC : DRAFT JUNE 2008 | BS 6468 - SPECIFICATION FOR DEPTH MICROMETERS |
| BS 1685:1951 | Specification for bevel protractors (mechanical and optical) |
| BS 959:1950 | Specification for internal micrometers (including stick micrometers) |
| BS 2572:1990 | Specification for phenolic laminated sheet and epoxy cotton fabric laminated sheet |
| BS 7531:1992 | Specification for compressed non-asbestos fibre jointing |
| BS 7531:2006 | Rubber bonded fibre jointing for industrial and aerospace purposes. Specification |
| BS 1912:1990 | Specification for soap flakes |
| BS 2782-3:Method 327A:1993 | Methods of testing plastics. Mechanical properties Determination of tensile strength and elongation at break of polytetrafluoroethylene (PTFE) products |
| BS 6468:1984 | Specification for depth micrometers |
| BS 6468:2008 | Specification for depth micrometers |
| 08/30177716 DC : DRAFT JUNE 2008 | BS 959 - SPECIFICATION FOR INTERNAL MICROMETERS (INCLUDING STICK MICROMETERS) |
| BS 7663:1993 | Methods of test for determination of permittivity and dissipation factor of electrical insulating material in sheet or tubular form |
| BS 7825-2:1996 | Calibration of rubber and plastics test equipment Calibration procedures |
| BS 419:1966 | Specification for varnished fabrics and tapes for electrical purposes |
| 06/30144329 DC : DRAFT MAR 2006 | BS 7531 - RUBBER BONDED FIBRE JOINTING FOR INDUSTRIAL AND AEROSPACE PURPOSES - SPECIFICATION |
| BS 5214-2:1978 | Specification for testing machines for rubbers and plastics Constant rate of force application machines |
| BS 852:1939 | Specification for toolmakers\' straightedges |
| BS F 125:1973 | Specification for rubber bonded compressed asbestos fibre jointing |
| BS 957-1:1941 | Specification for feeler gauges Inch units |
| BS 1734:1951 | Specification for micrometer heads |
| BS 1790:1961 | Specification for length bars and their accessories (imperial units) |
| BS 959:1950 | Specification for internal micrometers (including stick micrometers) |
| BS 1685:1951 | Specification for bevel protractors (mechanical and optical) |
| BS 957-2:1969 | Specification for feeler gauges Metric units |
| BS 888:1950 | Specification for slip (or block) gauges and their accessories |
| BS 957-1:1941 | Specification for feeler gauges Inch units |
| BS 907:1965 | Specification for dial gauges for linear measurement |
| BS 1054:1954 | Engineers comparators for external measurement |
| BS 906-2:1972 | Specification for engineers\' parallels. Imperial units |
| BS 818(1963) : LATEST | CAST IRON STRAIGHT EDGES (BOW SHAPED AND I-SECTION) |
| BS 939:1962 | Specification for engineers\' squares (including cylindrical and block squares) |
| BS 817(1939) : LATEST | |
| BS 906-1:1972 | Specification for engineers\' parallels Metric units |
| BS 2795:1957 | Dial test indicators (lever type) for linear measurement. Metric units. |
| BS 852:1939 | Specification for toolmakers\' straightedges |
| BS 1643:1950 | Specification for precision vernier height gauges |
| BS 869:1939 | Toolmakers\' flats and high precision surface plates. |
| BS 863(1939) : LATEST | STEEL STRAIGHTEDGES OF RECTANGULAR SECTION |
| BS 958:1941 | Precision levels for engineering workshops |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.