This Korean Industrial Standard specifies protective helmets for wear by riders of four wheeled vehicle, two wheeled vehicle motorcycle, bicycle etc. , hereinafter referred to as "protec-tive helmets". Protective helmets are designed to mitigate the effects of a impact on the head received by a rider in traffic accidents, accidents during competition riding, etc.
Remark In this standard, units and numerical values in { } are in accordance with International System of Units (SI) and are given for reference.