This standard applies to manually propelled straddle, pallet and platform stacker trucks with capacities not exceeding 1000 kg. For the purposes of this standard a manually propelled stacker truck (hereinafter referred to as a "truck") is a masted truck, equipped with forks, a platform, or other load handling device. The truck shall be designed to be manually pushed or pulled on a substantially horizontal hard surface by one pedestrian operator. The load maybe raised by either manual means or electrical battery power.