BS 5043:1973
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for book holders and prismatic spectacles for use as reading aids in hospitals and the home
Hardcopy , PDF
15-01-1997
English
24-12-1973
Co-operating organizations
Foreword
Specification
1 General
1.1 Scope
1.2 Definitions
1.3 Illuminated models excluding projection types
1.4 Safety
2 Book holders
2.1 General
2.2 Book holders which can be attached to a bed head
for reading in supine positions
2.3 Floor standing book holders
2.4 Book holders to stand on bedtables
3 Magnifiers
3.1 General
3.2 Material
3.3 Surface defects
3.4 Back vertex power
3.5 Lens aperture dimensions
3.6 Quality of finish
3.7 Determination of lens power
3.8 Determination of magnification
3.9 Determination of the field of view
3.10 Hand-held magnifiers
3.11 Table models with or without a book holder
4 Prismatic spectacles (non-corrective) for
recumbent patients
4.1 Requirements
4.2 Performance requirements
4.3 Desirable performance characteristics
Appendices
A Information and recommendations on the use of
magnifiers and prismatic spectacles
B Information regarding a range of hand-held
magnifiers
Figure
1 Book holder horizontal adjustment
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