Detail of GB/T 42703-2023

Introduction of GB/T 42703-2023

GB/T 42703-2023 Cycles - Audible warning devices - Technical specification and test methods 1 Scope This document lays down the technical specifications, such as the sound pressure level and the durability, and specifies the corresponding test method for audible warning devices (AWD) which may be fitted to cycles. This document applies to all types of audible warning devices (AWD) for use on bicycles. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 9227 Corrosion test in artificial atmosphere - Salt spray tests ISO 26101 Acoustics - Test methods for the qualification of free-field environments IEC 60942 Electroacoustics - Sound calibrators IEC 61672-1 Electroacoustics - Sound level meters - Part 1: Specifications IEC 61672-3 Electroacoustics - Sound level meters - Part 3: Periodic tests 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 cycle any vehicle that has at least two wheels and is propelled solely or mainly by the muscular energy of the person on that vehicle, in particular by means of pedals 3.2 bicycle two-wheeled cycle 3.3 audible warning device; AWD device designed for the purpose to warn people by an audible signal Note: Including all types of technologies (i.e. bells, horns, electronic audible warning device). 3.4 audible warning device class I AWD designed for general purpose 3.5 audible warning device class II AWD designed for purpose of use in area primarily shared by pedestrians and cyclists, such as a pedestrian zone 4 Symbols and abbreviated terms AWD Audible warning device

Contents of GB/T 42703-2023