ISO 6742-2:2023
Cycles — Lighting and retro-reflective devices — Part 2: Retro-reflective devices
This document is applicable to retro-reflective devices used on cycles intended to be used on public roads and, especially, bicycles complying with ISO 4210[1] and ISO 8098[2].
This part of ISO 6742 specifies photometric and physical requirements of retro-reflective devices.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General
4.1 Symbols and units used
4.2 Chronological order of tests
5 Photometrical requirements
5.1 General
5.2 Reflectors
5.3 Retro-reflective tyres
5.4 Retro-reflective spokes or spoke cases
6 Colorimetric requirements
7 Physical requirements
7.1 Reflectors
7.1.1 Construction
7.1.2 Test methods
7.2 Retro-reflective tyres
7.2.1 Form and location
7.2.2 Test methods
7.3 Retro-reflective spokes or spoke cases
7.3.1 Construction
7.3.2 Test methods
8 Photometric test
8.1 General
8.1.1 Instrumentation arrangement
8.1.2 Source of illumination
8.1.3 Receiver
8.1.4 Observation distance
8.1.5 Illuminance at the reflector
8.2 Reflectors
8.2.1 Principle
8.2.2 Reflector mount (or support)
8.2.3 Test area of reflector
8.2.4 Orientation of reflector
8.3 Retro-reflective tyres
8.3.1 Principle
8.3.2 Test method
8.4 Retro-reflective spokes or spoke cases
8.4.1 Testing assemblies for retro-reflective spokes and spoke cases
8.4.2 Test method
9 Colorimetric test
9.1 Instrumental measurements
9.2 Visual comparison
9.3 Use of methods
10 Marking
Annex A (informative) Alternative test method for Group B using negative pressure
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General
4.1 Symbols and units used
4.2 Chronological order of tests
5 Photometrical requirements
5.1 General
5.2 Reflectors
5.3 Retro-reflective tyres
5.4 Retro-reflective spokes or spoke cases
6 Colorimetric requirements
7 Physical requirements
7.1 Reflectors
7.1.1 Construction
7.1.2 Test methods
7.2 Retro-reflective tyres
7.2.1 Form and location
7.2.2 Test methods
7.3 Retro-reflective spokes or spoke cases
7.3.1 Construction
7.3.2 Test methods
8 Photometric test
8.1 General
8.1.1 Instrumentation arrangement
8.1.2 Source of illumination
8.1.3 Receiver
8.1.4 Observation distance
8.1.5 Illuminance at the reflector
8.2 Reflectors
8.2.1 Principle
8.2.2 Reflector mount (or support)
8.2.3 Test area of reflector
8.2.4 Orientation of reflector
8.3 Retro-reflective tyres
8.3.1 Principle
8.3.2 Test method
8.4 Retro-reflective spokes or spoke cases
8.4.1 Testing assemblies for retro-reflective spokes and spoke cases
8.4.2 Test method
9 Colorimetric test
9.1 Instrumental measurements
9.2 Visual comparison
9.3 Use of methods
10 Marking
Annex A (informative) Alternative test method for Group B using negative pressure
Bibliography