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Cross References:
BS 3521-1:1991
BS EN 60601-1:1990
BS ISO 9022-2:1994
BS ISO 9022-3:1994
 

Document History

  1. BS 4274-1:2003

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    Visual acuity test types-Test charts for clinical determination of distance visual acuity. Specification

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  2. BS 4274-1:1968


    Visual acuity test types-Specification for test charts for clinically determining distance visual acuity

    • Historical Version