This standard BS EN 13832-3:2018 Footwear protecting against chemicals is classified in these ICS categories:
13.340.50 Leg and foot protection
This European Standard specifies requirements for footwear intended to protect the wearer from a prolonged continuous contact (more than 1 hour) with specific chemicals. Degradation and permeation by chemicals are addressed in this standard. Other requirements are covered by reference to EN ISO 20345, 20346 or 20347 as appropriate.