When your team handles solvents, acids, or petroleum-based chemicals, the label "EN 374" on a glove box is more than marketing — it is a verified claim that the product has been tested against specific chemicals under controlled conditions. But what exactly does each part of the standard cover, and how should buyers interpret the pictograms and type classifications?

The Structure of EN 374

Chemical Resistance Classification: Type A, B, C

The 18 Test Chemicals

Reading the Pictogram

A glove certified to EN 374 bears an Erlenmeyer flask icon with chemical letter codes underneath. The letters indicate which test chemicals the glove resists for >=30 minutes. A separate biohazard symbol appears when the glove also meets EN 374-5. Always cross-check letter codes against your workplace chemical inventory before purchasing.

Q: Does EN 374 certification guarantee total chemical barrier?

A: No. EN 374 measures permeation breakthrough time, not absolute impermeability. The 30-minute threshold is a minimum performance floor, not unlimited protection.

Q: Are nitrile gloves automatically EN 374 compliant?

A: No. Thin exam-grade nitrile gloves may meet EN 455 but fail EN 374-3 permeation tests. Always verify the specific type and chemical codes.

Q: Difference between penetration and permeation?

A: Penetration: macro-scale holes allowing liquid through. Permeation: molecular-level diffusion through intact material.

Q: How often should chemical-resistant gloves be replaced?

A: Replace at no more than 50% of stated breakthrough time. For unknown mixtures, replace immediately after any visible exposure.

Q: Does JIXIANG offer EN 374-certified gloves for Gulf markets?

A: Yes. JIXIANG nitrile gloves are certified EN 374 Type C and Type A, with CE MDR documentation and GSO-compliant labeling.