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Description of BS 5204-2:1977 1977This 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.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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