This part of the standard specifies the requirements for protective gloves intended to protect the user against dangerous chemicals and defines terms to be used.
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In 2016 resp. 2018 the standard was revised. Various pictograms were merged into one. Type classes differentiate between the various barrier properties.
EN ISO 374-1:2016+A1:2018
| Classification/Requirement | ||||||
|---|---|---|---|---|---|---|
| Type A | Penetration resistant (EN 374-2) + Breakthrough time ≥ 30 min for at least 6 chemicals (Test according to EN 16523-1) | |||||
| Type B | Penetration resistant (EN 374-2) + Breakthrough time ≥ 30 min for at least 3 chemicals (Test according to EN 16523-1) | |||||
| Type C | Penetration resistant (EN 374-2) + Breakthrough time ≥ 10 min for at least 1 chemical (Test according to EN 16523-1) | |||||
List of test chemicals
| Letter | Chemicals | CAS | Classification | |||||
|---|---|---|---|---|---|---|---|---|
| A | Methanol | 67-56-1 | Primary alcohol | |||||
| B | Acetone | 67-64-1 | Ketone | |||||
| C | Acetonitrile | 75-05-8 | Nitrile | |||||
| D | Dichlormethane | 75-09-2 | Chlorinated paraffin | |||||
| E | Carbon disulphide | 75-15-0 | Sulphur containing organic compound | |||||
| F | Toluene | 108-88-3 | Aromatic hydrocarbon | |||||
| G | Diethylamine | 109-89-7 | Amine | |||||
| H | Tetrahydrofuran | 109-99-9 | Heterocyclic ether compound | |||||
| I | Ethylacetate | 141-78-6 | Ester | |||||
| J | n-Heptane | 142-82-5 | Saturated hydrocarbon | |||||
| K | Sodium hydroxide 40% | 1310-73-2 | Inorganic base | |||||
| L | Sulphuric acid 96% | 7664-93-9 | Inorganic acid | |||||
| M | Nitric acid 65% | 7697-37-2 | Inorganic mineral acid | |||||
| N | Acetic acid 99% | 64-19-7 | Organic acid | |||||
| O | Ammonia 25% | 1336-21-6 | Organic base | |||||
| P | Hydrogen peroxide 30% | 7722-84-1 | Peroxide | |||||
| S | Hydrofluoric acid 40% | 7664-39-3 | Inorganic mineral acid | |||||
| T | Formaldehyde 37% | 50-00-0 | Aldehyde | |||||
Degradation
Deleterious change in one or more properties of a protective glove material due to contact with a chemical.
Penetration
Movement of a chemical through materials, seams, pinholes, or other imperfections in a protective glove material on a non-molecular level.
Permeation
Process by which a chemical moves through a protective glove material on a molecular level.
According to their permeation performance, chemical protective gloves are classified into three types: type A, type B or type C.
The tested chemical must be identified by its code letter, which is given below the pictogram. This letter is omitted for type C. Further performance values of tested chemicals are mentioned in the manufacturer’s information.
ISO 374-1:2016/Type A
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