ČSN P CEN/TS 17946

This document specifies requirements and test methods for helmets worn by users of speed electrically power assisted bicycles (S-EPACs). This document also specifies requirements and test methods for integrated visors in helmets worn by users of S-EPACS. Requirements and the corresponding methods of test are given for the following: - construction, including field of vision; - shock absorbing properties; - retention system properties, including chin strap and fastening devices; - marking and information