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.
machine reference box
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
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
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.
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.