BS 852:1939
Current
The latest, up-to-date edition.
Specification for toolmakers\' straightedges
Hardcopy , PDF
English
19-06-1939
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Straightedges of short length for very accurate work, having one working edge which is bevelled and very slightly rounded off (\'knife-edge\'). Material, general features, finish, accuracy, handles, glass test plate, case, packing, marking.
| Committee |
TPR/1
|
| DevelopmentNote |
Reviewed and confirmed by BSI, February 2012. (01/2012)
|
| DocumentType |
Standard
|
| Pages |
10
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This Specification applies to toolmakers’ straightedges of short length intended for very accurate work, and having one working edge, which is bevelled and very slightly rounded off (commonly described as a “knife-edge??).
NOTE The attention of the purchaser is drawn to the necessity for indicating, in his enquiry and order, his particular requirements in regard to type and length, and whether a test plate (see Clause 6) is required.
| Standards | Relationship |
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| BS 939:1962 | Specification for engineers\' squares (including cylindrical and block squares) |
| BS 907(1955) : LATEST | |
| BS 817(1939) : LATEST | |
| BS 906-1:1972 | Specification for engineers\' parallels Metric units |
| BS 887:1950 | Specification for precision vernier callipers |
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| 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 |
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