09/30195606 DC : 0

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

BS EN 12899-6