EN 374: Modified standard for chemical protective gloves
Chemical protective gloves must meet the requirements of European standard EN 374. This standard has now been modified substantially. These changes become effective once they are published in the Official Journal of the European Union.
We would like to take this opportunity to inform you of the upcoming reforms, explain the changes and then describe the impacts they will have for users.
EN 374 has several parts. The following parts are relevant for chemical protective gloves:
- EN ISO 374-1:2016: Protective gloves against dangerous chemicals and micro-organisms —Part 1: Terminology and performance requirements for chemical risks
Increased number of test chemicals:
The test catalogue has been extended as per the new standard. The chemicals with code letters from M to T are new:
Marking of protective gloves:
Type A: Protective glove with permeation resistance of at least 30 minutes each for at least 6 test chemicals.
Type B: Protective glove with permeation resistance of at least 30 minutes each for at least 3 test chemicals.
Type C: Protective glove with permeation resistance of at least 10 minutes for at least 1 test chemical.
With regard to the new classification, experts already agree that the 3 new type classes are unlikely to generate new differentiations between the product categories already on the market. Most chemical protective gloves can be assigned to type class A; only thin disposable protective gloveswill be assigned to types B and C. The practical use for the user is debatable.
- EN 374-2:2014: Protective gloves against dangerous chemicals and micro-organisms — Part 2: Determination of resistance to penetration
There are no significant changes.
- EN 374-3:2003: Protective gloves against chemicals and micro-organisms – Part 3: Determination of resistance to permeation by chemicals
This standard has been removed and replaced by EN 16523-1:2015, Determination of material resistance to permeation by chemicals — Part 1: Permeation by liquid chemical under conditions of continuous contact, in the Official Journal after harmonisation. There is no significant effect on the test method.
- EN 374-4:2013: Protective gloves against chemicals and micro-organisms — Part 4: Determination of resistance to degradation by chemicals
This part is new and takes into account the effect of degradation (change of glove material) by the chemical. Degradation can cause brittleness, swelling or shrinkage of the polymer material, for example. This is equivalent to a changing barrier function against the chemical.
This standard now creates a standardised measurement method for degradation for the first time.
- pr EN ISO 374-5:2015: Protective gloves against dangerous chemicals and micro-organisms – Part 5: Terminology and performance requirements for micro-organisms risks
This standard is expected to become effective in 2017. It should be observed in particular for the risks of contact with micro-organisms (bacteria/viruses).
What effects does the standard have on users?
Users will only notice the application of the changes to EN 374 on the marking of the protective glove. From a user perspective, the standard is mainly used for product comparison and also offers security that the product has undergone standardized certification.
Application consulting with the manufacturer is still very important. The specific requirements for protection must be identified as part of a risk assessment of the actual activities in the workplaces and must take the specific working conditions into account. The user or the responsible occupational safety experts should define the individual requirements and ask the manufacturer for the specific protective performance of the protective gloves.