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Homepage>BS Standards>17 METROLOGY AND MEASUREMENT. PHYSICAL PHENOMENA>17.040 Linear and angular measurements>17.040.30 Measuring instruments>BS 5204-2:1977 Specification for straightedges Steel or granite straightedges of rectangular section
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immediate downloadReleased: 1977-04-29
BS 5204-2:1977 Specification for straightedges Steel or granite straightedges of rectangular section

BS 5204-2:1977

Specification for straightedges Steel or granite straightedges of rectangular section

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Standard number:BS 5204-2:1977
Pages:14
Released: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.