B

For B, stated equivalent is IIC (partially IIB+H₂); applies to is Hydrogen, butadiene, verified against its source on 2026-08-11.

Designation: B verified
Stated equivalent: IIC (partially IIB+H₂) verified
Applies to: Hydrogen, butadiene verified

Sourceexknowledge.com

Verified2026-08-11

Review by2027-08-11

DatasetCertification marks and hazardous-area classifications: cross-market equivalences

What the source says

B | IIC (partially IIB+H₂) | Hydrogen, butadiene | <0.50 mm

— exknowledge.com, retrieved 2026-08-11

Source

exknowledge.comhttps://exknowledge.com/pages/nec-500-vs-atex-iec.html

Last verified against source: 2026-08-11. Due for re-check by 2027-08-11. This page as Markdown · OKF bundle · full dataset as JSON.