ISO 31110:2020

This document specifies the safety requirements and test methods for pushchairs and prams, intended for the transportation of one or more children up to three years of age.
This document does not apply to toys, pushchairs intended for sport use, pushchairs and prams propelled by a motor, and pushchairs and prams designed for children with special needs.
Other relevant standard(s) can apply if any when a pushchair or pram or any part of the pushchair or pram has several functions or can be converted into another function.
NOTE     The average weight of a three-year-old child corresponds to 15 kg.