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  • BS 5204-2:1977

    Current The latest, up-to-date edition.

    Specification for straightedges Steel or granite straightedges of rectangular section

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  29-04-1977

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Cooperating organizations
    Specification
    1. Scope
    2. References
    3. Definitions
    4. Material and manufacture
    5. Recommended sizes and design
    6. Finish
    7. Points of support for straightedges of 1 m length
        and over
    8. Accuracy
    9. Case
    10. Protection against climatic conditions
    11. Marking
    Appendices
    A. Note on supporting straightedges of rectangular
        section
    B. Recommended methods of testing straightness of a
        straightedge
    Tables
    1. Minimum section
    2. Tolerance on straightness of working face
    3. Tolerance on parallelism of working face
    4. Combined tolerance on flatness and parallelism of
        side faces
    5. Best positions for supporting straightedges
    6. Example of recording observations
    Figures
    1. Position of handling slots
    2. Alternative methods of indicating the positions of
        support
    3. Deflection with supports at ends
    4. Deflection with supports near the centre
    5. Optimum position for supports
    6. Test by inclination method
    7. Plotting of readings
    8. Method of compensation for mass of level

    Abstract - (Show below) - (Hide below)

    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.

    Scope - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Committee TPR/1
    Development Note Supersedes BS 863(1939) & 75/70860 DC. (07/2005) Reviewed and confirmed by BSI, February 2012. (01/2012)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

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    04/30044646 DC : DRAFT JUNE 2004 BS 5911-6 - CONCRETE PIPES AND ANCILLARY PRODUCTS - PART 6: SPECIFICATION FOR ROAD GULLIES AND GULLY COVER SLABS
    BS DD184(1990) : 1990 METHOD FOR THE DETERMINATION OF THE WHEEL TRACKING RATE OF CORES OF BITUMINOUS WEARING COURSES
    BS 598-104:1989 Sampling and examination of bituminous mixtures for roads and other paved areas Methods of test for the determination of density and compaction
    BS 1881-108:1983 Testing concrete Method for making test cubes from fresh concrete
    I.S. 6:2004 CONCRETE SEWER PIPES
    BS 598-110:1996 Sampling and examination of bituminous mixtures for roads and other paved areas Methods of test for the determination of wheel-tracking rate
    BS DD226(1996) : 1996 METHOD FOR DETERMINING RESISTANCE TO PERMANENT DEFORMATION OF BITUMINOUS MIXTURES SUBJECT TO UNCONFINED DYNAMIC LOADING
    BS 1881-109:1983 Testing concrete Method for making test beams from fresh concrete
    BS 1881-110:1983 Testing concrete Method for making test cylinders from fresh concrete
    BS 6808-1:1987 Coordinate measuring machines Glossary of terms
    BS 5911-6(2004) : 2004 CONCRETE PIPES AND ANCILLARY CONCRETE PRODUCTS - PART 6: SPECIFICATION FOR ROAD GULLIES AND GULLY COVER SLABS
    BS 1726-1:2010 Cylindrical helical springs made from round wire and bar. Guide to methods of specifying and tolerancing hot coiled springs, and cold coiled springs not covered by BS EN 15800, and general spring testing Compression springs
    BS 1726-1:1987 Coil springs. Guide for the design of helical compression springs
    BS 598-104:2005 Sampling and examination of bituminous mixtures for roads and other paved areas Methods of test for the determination of density and compaction
    BS DD213(1993) : 1993 METHOD FOR DETERMINATION OF THE INDIRECT TENSILE STIFFNESS MODULUS OF BITUMINOUS MIXTURES
    BS 8726-1:2002 Cylindrical helical springs made from rectangular and square section wire and bar. Guide to calculation and design Compression springs
    BS 6381:1983 Specification for drawing boards
    10/30205484 DC : 0 BS 1726-1 - CYLINDRICAL HELICAL SPRINGS MADE FROM ROUND WIRE AND BAR - GUIDE TO METHODS OF SPECIFYING TOLERANCES FOR HOT COILED SPRINGS, AND COLD COILED SPRINGS NOT COVERED BY BS EN 15800 - GENERAL SPRING TESTING - PART 1: COMPRESSION SPRINGS
    BS 1919:1983 Specification for hacksaw blades

    Standards Referencing This Book - (Show below) - (Hide below)

    BS 2795:1981 Specification for dial test indicators (lever type) for linear measurement
    BS 5204-1:1975 Specification for straightedges Cast iron straightedges (bow shaped and I-section)
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