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sklademVydáno: 1977-04-29
BS 5204-2:1977
Specification for straightedges Steel or granite straightedges of rectangular section
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| Označení normy: | BS 5204-2:1977 |
| Počet stran: | 14 |
| Vydáno: | 1977-04-29 |
| ISBN: | 0 580 09623 8 |
| Status: | Standard |
DESCRIPTION
BS 5204-2:1977
This standard BS 5204-2:1977 Specification for straightedges is classified in these ICS categories:
- 17.040.30 Measuring instruments
This Part of BS 5204 specifies requirements for steel or granite straightedges up to and including 2 m in length, of rectangular section, with or without a bevelled edge, and with both working faces finished straight and parallel. Two grades of accuracy are provided for: grade A and grade B.
Appendices deal with the method of supporting straightedges of rectangular section and methods of testing straightness of a straightedge.
Requirements for straightedges in a range of lengths from 300 to 2000 mm. Provides for two grades of accuracy. Appendices deal with the method of supporting straightedges and methods of testing for straightness.