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AS ISO 9533:2020 Earth-moving machinery一Machine- mounted audible travel alarms and forward horns一Test methods and performance criteria. AS ISO 9533 specifies a static method for determining the sound output performance and alarm activation requirements of audible travel alarms and forward horns mounted on earth- moving machinery, as defined in ISO 6165, for operation on work sites and travelling on public roads. It offers objective test methodologies and performance criteria. It is applicable only to those alarms and horns that are installed on the earth-moving machinery. It does not specify the installation of one or more audible travel alarms or forward horns on particular machines. It addresses neither the laboratory testing of warning alarm functionality nor durability. NOTE Earth-moving machine manufacturer’s practices, worksite requirements and local, national or regional regulations could require the fitting of the alarms or horns specified in this International Standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3411, Earth-moving machinery — Physical dimensions of operators and minimum operator space envelope ISO 6165, Earth-moving machinery — Basic types — Identification and terms and definitions ISO 674 6-1, Earth-moving machinery — Definitions of dimensions and codes — Part 1: Base machine IEC 6167 2-1, Electroacoustics — Sound level meters — Part 1: Specifications 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 machine reference box MRB imaginary rectangular box that would just fit over the base machine according to ISO 6746-1, which excludes all equipment and attachment items such as buckets, dozers, backhoes, rippers and booms 3.2 audible travel alarm machine-mounted audible alarm intended to warn or alert personnel of the potential hazard of the machine travelling under its own power 3.2.1 travel warning alarm audible signal intended to warn or alert personnel, especially those near a machine, that the machine has been activated to travel under its own power Note 1 to entry: These alarms are normally associated with machines that have rotating upper structures. 3.2.2 reverse warning alarm audible signal intended to warn personnel, especially those near the rear of a machine, that the machine has been activated to travel in a rearward direction under its own power.AS ISO 9533 pdf download.

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