Caps for writing and marking instruments intended for use by children up to 14 years of age -- Safety requirements
This standard has been revised by ISO 11540:2014
Specifies safety requirements for cap size, ventilated caps (vent area, air flow) and marking. Annex A describes the test for air flow. Caps which do not comply should have the instrument or its packaging labelled with a warning as to the dangers of asphyxiation from pen caps.
A standard is reviewed every 5 years
Revisions / Corrigenda