BS ISO 12511:1997+A1:2021

This standard BS ISO 12511:1997+A1:2021 Earth-moving machinery. Hour meters is classified in these ICS categories:

• 53.100 Earth-moving machinery
• 39.040.99 Other time-measuring instruments

This International Standard specifies the meters used to measure the amount of time an earth-moving machine has been operated.

It is applicable to earth-moving machinery as defined in ISO 6165, but does not mandate the use of hour meters on any earth-moving machine.