EN71-1 5.4 cords on toys b)
- when subjected to a force of (25n),separate into parts not exceeding 220mm when stretched by a force of 25N.
It shall be possible to join the parts together after they have been separated without altering the characteristics of the joints.
后面这句话的意义是什么?保证绳子还可以继续玩耍?谢谢赐教!