ISO 9533:2010 PDF

Overview

ISO 9533:2010 - "Earth-moving machinery - Machine-mounted audible travel alarms and forward horns - Test methods and performance criteria" specifies a static test method to determine sound output performance and alarm activation requirements for machine-mounted audible travel alarms and forward horns on earth‑moving machinery (per ISO 6165). The standard defines objective test procedures and performance criteria for field testing (not laboratory functional or durability testing) and applies only to alarms/horns installed on the machine.

Key topics and technical requirements

• Scope and limits
  • Applies to machine‑mounted audible travel alarms, travel/reverse warning alarms and forward horns used on work sites and public roads.
  • Does not prescribe installation locations or laboratory durability/functional tests.
• Test environment
  • Free‑field over a hard reflecting plane (no reflective surfaces within 30 m).
  • Ambient (background) noise at least 10 dB lower than measurement of interest.
  • Climatic range: −10 °C to +35 °C; wind speeds