本标准的目的是提供轻型头盔，以保护头部免受自行车、滑板和其他轮式娱乐活动相关危险的伤害，并降低其严重程度。

The objective of this Standard is to provide lightweight helmets that protect against, and reduce the severity of, head injury from hazards associated with cycling, skateboarding and other wheeled recreational activities.