This part of ISO 7176 specifies a method for determining the energy consumption, expressed as a theoretical distance range, of electric wheelchairs and scooters intended for users whose mass does not exceed 100 kg.
It applies to wheelchairs and scooters with a maximum speed of 15 km/h and intended to carry only one person.
ISO 7176-4:1997 history
2008ISO 7176-4:2008 Wheelchairs - Part 4: Energy consumption of electric wheelchairs and scooters for determination of theoretical distance range
1997ISO 7176-4:1997 Wheelchairs - Part 4: Energy consumption of electric wheelchairs and scooters for determination of theoretical distance range
1988ISO 7176-4:1988 Wheelchairs; part 4: determination of energy consumption of electric wheelchairs