GB/T 12985-1991

This standard provides guidelines for selecting appropriate body dimension percentiles (e.g., 5th, 50th, 95th) when designing products to ensure ergonomic fit for target user populations. It is applied in industrial design and manufacturing contexts, such as furniture, vehicle interiors, and workstation equipment, to accommodate the physical variability of users. The standard helps engineers and designers determine which percentile values to use for specific design requirements, like reach ranges or clearance spaces, based on safety, comfort, and usability criteria.