EN374-1 standard specifies the requirements for gloves to protect the user against chemical agents and/or microorganisms and defines the terms to be used. In the EN 374-1 standard, there were significant changes, such as the amendment of the permeation standard, former EN374-3, replaced by EN 16523-1:2015 and the inclusion of 6 additional chemicals, with the following table of products and letters representing them, as brought by the standard:
