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BSI - BS 4274-1

Visual acuity test types - Part 1: Test charts for clinical determination of distance visual acuity - Specification

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Organization: BSI
Publication Date: 13 January 2003
Status: active
Page Count: 14
ICS Code (Ophthalmic equipment): 11.040.70

Document History

BS 4274-1
January 13, 2003
Visual acuity test types - Part 1: Test charts for clinical determination of distance visual acuity - Specification
A description is not available for this item.
BS 4274-1
January 26, 1968
Visual acuity test types. Part 1: Specification for test charts for clinically determining distance visual acuity
Basic requirements for test charts designed for either internal or external illumination, employing English (Roman) capital letters to determine the distance visual acuity. Provision is also made for...

References

This document references:
BS EN 60601-1 - Medical Electrical Equipment Part 1: General Requirements for Safety
Published by BSI on September 29, 1989
This Standard applies to the safety of MEDICAL ELECTRICAL EQUIPMENT (as defined in Sub-clause 2.2.15). Although this Standard is primarily concerned with safety, it contains some requirements...
This document references:
BS ISO 9022-2 + A1 - Optics and photonics - Environmental test methods Part 2: Cold, heat and humidity
Published by BSI on March 31, 2015
A description is not available for this item.
This document references:
BS ISO 9022-3 - Optics and photonics - Environmental test methods Part 3: Mechanical stress
Published by BSI on June 30, 2022
A description is not available for this item.
This document is referenced by:
BS 3521-1 - Terms Relating to Ophthalmic Optics and Spectacle Frames Part 1: Glossary of Terms Relating to Ophthalmic Lenses
Published by BSI on September 30, 1991
Defines terms used to describe lenses, their ophthalmic properties and defects, and the manufacturing processes.
This document is referenced by:
BS 3521-2 - Terms Relating to Ophthalmic Optics and Spectacle Frames - Part 2: Glossary of Terms Relating to Spectacle Frames
Published by BSI on September 30, 1991
Terms used to describe the shapes, parts of and processes in the production of frames.
This document is referenced by:
BS EN ISO 8429 - Optics and Optical Instruments - Ophthalmology - Graduated Dial Scale
Published by BSI on October 30, 1987
Specifies the angular co-ordinate system to be used in the design of scales, reticles or other instruments for the determination of optical data in relation to the eye.
This document is referenced by:
S1604 - Vision standard for personnel requiring safety on the Track Certification
Published by LUL on December 1, 2022
This standard applies to LU and TfL employees and other individuals who: a) In the course of normal or emergency work, access the live LU track and/or b) Require LU Track Certification including i....
This document is referenced by:
NR/L2/OHS/00124 - Competence Specific Medical Fitness Requirements and Occupational Health Provider Requirements for Medical Assessments
Published by NR on December 3, 2016
This standard defines: a. the minimum medical fitness requirements for individuals working on Network Rail managed infrastructure; b. the requirements for conducting a competence specific medical...
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