Descriptors | Inclined, Stability testing, Braking systems, Grades (quality), Noise (environmental), Wheelchairs, Medical equipment, Angles (geometry), Velocity, Electrically-operated devices, Feet (anatomy), Instructions for use, Electrical testing, Water-resistance tests, Weight (mass), Seating, Battery chargers, Corrosion, Mechanical testing, Electrical safety, Vehicle reflectors, Control equipment, Aids for the disabled, Dimensions, Handbooks, Testing conditions, Design, Position, Control devices, Acoustic testing, Performance, Ergonomics, Performance testing, Test dummies, Vehicle lights, Motor cycles |