BS AU 145b:1989

Superseded

View Superseded by

Specification for retroreflecting number plates

Available format(s)

Hardcopy , PDF

Superseded date

11-15-1995

Language(s)

English

Published date

05-31-1989

Publisher

British Standards Institution

Foreword
Committees responsible
Specification
1. Scope
2. Definitions
3. Design
4. Marking
5. Colour
6. Retroreflecting backgrounds
7. Resistance to weathering
8. Resistance to impact
9. Resistance to bending
10. Resistance to corrosion
11. Resistance to vibration and shock
12. Resistance to solvents
13. Bonding strength
14. Thermal resistance
15. Resistance to water
Appendices
A. Number plate dimensions and layout
B. Specification of number plate characters and tiles
C. Method and apparatus for weathering tests
D. Procedure for preparing a dirty number plate for
     test purposes
E. Method of test for impact resistance
F. Method of test for thermal resistance
Tables
1. Daylight chromaticity and luminance factor limits
2. Night-time chromaticity limits
3. Minimum coefficient of retroreflection, R'
4. Characters and tile dimensions
Figures
1. Dimensions and layout of number plates
2. Character fount
3. Arrangement of apparatus for measuring the
     coefficient of retroreflection
4. Test arrangements for measurement of the
     coefficients of retroreflection of wet specimens
5. Sketch of number plate holding fixture
6. Number plate bend test arrangement
7. Vibration and shock test machine
8. Apparatus for accelerated weathering test:
     assembled views
9. Apparatus for accelerated weathering test: details
     of spray atomizer assembly
10. Apparatus for impact resistance test

Defines specifically designed character founts, dimensions, test requirements and acceptance criteria.

Committee	AUE/1
DevelopmentNote	Supersedes BS AU145A(1972). (06/2015)
DocumentType	Standard
Pages	36
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS AU 145c:1995
Supersedes	BS AU 145a:1972