This standard BS EN 16120:2012+A2:2016 Child use and care articles. Chair mounted seat is classified in these ICS categories:
97.190 Equipment for children
97.140 Furniture
This European Standard specifies safety requirements and test methods for chair mounted seats intended to be positioned on an adult chair to raise the sitting position of a child able to sit unaided up to an age of 36 months or a maximum weight of 15 kg. This European Standard does not apply to cushions, pads and to products only aimed at restraining the child on a chair without raising the child's sitting position.