are used in the production of polyurethane, which can be found in foams, mattresses, lacquers, plastics and adhesives. The finished end product is completely [...] the European Chemicals Agency (ECHA) finally published a restriction on products containing diisocyanate that only allows them to be processed with a training [...] isocyanates – i.e. diisocyanates – exceeds 0.1%. As of August 2023, these products can only be used if all those involved have completed the appropriate training
https://www.jowat.com/en-CA/newsroom-detail/schools-out-for-the-mr-class/