ISO 12511:1997 PDF

Overview

ISO 12511:1997 is an international standard published by the International Organization for Standardization (ISO) that defines specifications for hour meters used in earth-moving machinery. Designed by technical committees specializing in earth-moving equipment, this standard establishes the requirements for devices that measure the operational time of engine-powered machines, ensuring consistency, reliability, and accuracy across the industry. Although the standard applies to earth-moving machinery as defined in ISO 6165, it does not mandate the installation of hour meters on all machines.