ISO 6742-2-2023 PDF

Full title and description

ISO 6742-2:2023 — Cycles — Lighting and retro-reflective devices — Part 2: Retro-reflective devices. Specifies the photometric, colourimetric, physical and environmental requirements and test methods for retro‑reflective devices intended for cycles used on public roads (including bicycles complying with ISO 4210 and ISO 8098).

Abstract

This part of ISO 6742 applies to retro‑reflective devices used on cycles intended for use on public roads. It sets out classification of device types (conventional, wide‑angle, high‑value, tyre and spoke reflectors, pedal reflectors etc.), minimum photometric and colourimetric performance criteria, and physical and environmental test requirements to verify durability and safety in normal use.

General information

• Status: Published.
• Publication date: August 2023 (publication stage recorded 1 September 2023).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.150 (Cycles).
• Edition / version: Edition 4 (2023).
• Number of pages: 19.

Scope

Specifies requirements and test methods for retro‑reflective devices fitted to cycles used on public roads, with particular reference to bicycles that meet safety requirements in ISO 4210 and ISO 8098. The standard covers photometric and colourimetric performance, device classification and marking, and a set of physical and environmental tests to assess durability and resistance to fuels, moisture, impact and temperature variations.

Key topics and requirements

• Device classification: conventional reflectors, wide‑angle and high‑value reflectors, tyre reflectors, spoke/spoke‑case reflectors and pedal reflectors.
• Photometric requirements: minimum luminous intensity coefficients for defined test points and groups to accommodate differing national/regional requirements.
• Colourimetric requirements: visual inspection and instrumental verification using trichromatic coordinates consistent with CIE references.
• Photometric test procedures: defined instrument geometry, illumination, observation distance and orientation for bench tests and for assemblies such as tyres and spokes.
• Physical and environmental tests: temperature and moisture resistance, fuel and lubricating‑oil resistance, impact testing for specified groups, and corrosion/aging considerations (references to standard environmental tests where applicable).
• Marking and documentation: requirements for identification and information needed to demonstrate conformity with the standard.
• Separate provisions for different device forms (individual reflectors vs. integrated assemblies) and for testing of rotating components such as wheels/spokes.

Typical use and users

Manufacturers of bicycle reflectors and retro‑reflective components, bicycle OEMs and accessory suppliers, test laboratories and conformity assessment bodies, regulators and standards committees, and procurement or safety engineers specifying or verifying compliance with cycle lighting and visibility requirements.

Related standards

ISO 6742 is a multi‑part series; related parts include ISO 6742‑1 (lighting and light signalling devices), ISO 6742‑3 (installation and use), ISO 6742‑4 (lighting systems powered by the cycle's movement) and ISO 6742‑5 (lighting systems not powered by the cycle's movement). ISO 6742‑2 is also intended to be used alongside bicycle safety standards such as ISO 4210 (safety requirements for bicycles) and ISO 8098 (safety requirements for children’s bicycles). National/adopted versions and regional standards may reference or align with ISO 6742‑2.

Keywords

cycles, bicycles, retro‑reflective devices, reflectors, photometric requirements, colourimetry, test methods, spokes, pedal reflectors, retroreflective tyres, ISO 6742.

FAQ

Q: What is this standard?

A: ISO 6742‑2:2023 is the international standard that specifies requirements and test methods for retro‑reflective devices used on cycles (bicycles and similar) intended for public‑road use.

Q: What does it cover?

A: It covers device classification, photometric and colourimetric performance criteria, photometric test procedures, and physical/environmental durability tests for a range of reflector types (conventional, wide‑angle, high‑value, tyre and spoke reflectors, pedal reflectors, etc.).

Q: Who typically uses it?

A: Manufacturers, test laboratories, conformity assessors, bicycle OEMs, regulators and safety engineers who need to design, test, certify or specify retro‑reflective devices and assemblies for cycles.

Q: Is it current or superseded?

A: Current — ISO 6742‑2:2023 (Edition 4) replaced earlier editions and amendments (for example the 2015 edition and its 2018 amendment). Published in mid/late 2023.

Q: Is it part of a series?

A: Yes — it is Part 2 of the ISO 6742 series on cycles — lighting and retro‑reflective devices; other parts address lighting, installation, and specific power sources for lighting systems.

Q: What are the key keywords?

A: Retro‑reflective devices, reflectors, photometry, colourimetry, bicycle safety, test methods, spokes, pedal reflectors, ISO 6742.