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.