One of the most common misconceptions in the industrial safety equipment market is the confusion between cut protection levels and chemical resistance ratings. When buyers search for "Level 5 protection" for chemical handling, they may inadvertently be referencing the wrong standard entirely.
EN 388 governs mechanical risks (cutting, abrasion, tearing, puncture) and uses a Level 1-5 scale for cut resistance, where Level 5 represents 2200-2999 grams of cutting load before glove failure. This is relevant for workers handling sharp objects alongside chemicals, but it does not measure chemical permeation or degradation.
EN 374, on the other hand, is the definitive standard for chemical-resistant gloves and protective equipment. It classifies protection into Type A, Type B, and Type C based on breakthrough time testing against specific chemicals:
- Type A: Tested against at least 6 chemicals with minimum 30-minute breakthrough time
- Type B: Tested against at least 3 chemicals with minimum 30-minute breakthrough time
- Type C: Tested against at least 1 chemical with minimum 10-minute breakthrough time
Each type is further identified by letter codes (A-T) indicating which specific chemicals the material was tested against. For example, letter "O" indicates testing against 25% Ammonium Hydroxide [1].
If you are able you can look at the glove box and there should be a chem symbol with the wording en iso 374-1 type a/b/c on top and then letters on the bottom of it. The letter you are looking for is O as that means it was tested against 25% Ammonium Hydroxide and the type you want is either a or b as those were tested against the chemicals for 30mins. [4]
This distinction matters profoundly for Southeast Asian exporters targeting the Alibaba.com marketplace. A product marketed as "Level 5 chemical protection" without EN 374 Type certification may face rejection from informed B2B buyers, regulatory complications in destination markets, or worse—safety incidents that damage supplier reputation.
OSHA's 2026 Hazard Communication Standard updates add another layer of complexity. The U.S. Occupational Safety and Health Administration has adopted GHS (Globally Harmonized System) Revision 7, requiring employers to update chemical labels by July 2026 for pure substances and May 2028 for mixtures [2]. This affects not only end-users but also equipment suppliers who must ensure their product documentation aligns with updated hazard classifications.
