Foreword
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
4 Retroreflection of retroreflective sheeting materials
4.1 Introduction
4.2 Derivation of the coefficient of retroreflection for
signal and contrast colours
4.3 Application classes for signal colours
4.4 Performance classes for signal colours
4.5 Derivation of the R[A] index for secondary datum axes
4.6 Requirements for contrast colours
5 Daytime luminance factor and chromaticity of retroreflective
sheeting materials
Annex A (normative) - Methods for deriving the coefficient of
retroreflection R[A] and its symmetries
A.1 General
A.2 Method for deriving R[A,C](alpha,beta) values by
thorough testing
A.3 Method of deriving R[A,C](alpha,beta) values by
simplified testing
A.4 Establishment of datum axis reversal symmetry
A.5 Establishment of datum axis rotation symmetry
A.5.1 General
A.5.2 Optical Elements with complete rotational
symmetry
A.5.3 Optical Elements without complete rotational
symmetry
Annex B (normative) - Colorimetric testing
B.1 Luminance factor and chromaticity of non-fluorescent
materials
B.1.1 General
B.1.2 Reference method for microprismatic sheeting
materials
B.1.3 Secondary method for microprismatic sheeting
materials
B.2 Luminance factor and chromaticity of fluorescent
materials
Annex C (informative) - Guidelines for the selection of application
and performance classes
C.1 Introduction
C.2 Application classes
C.3 Performance classes
C.4 Vehicles other than the passenger car
C.5 Signs at other locations
C.6 Other factors
C.7 Guidelines
Bibliography