{"zones":{"Class I, Division 1":{"iecZones":["0","1"],"notes":"Division 1 covers both Zone 0 and Zone 1. More conservative than IECEx approach."},"Class I, Division 2":{"iecZones":["2"],"notes":"Division 2 ≈ Zone 2. Non-incendive (NI) approach similar to Ex nA."},"Class II, Division 1":{"iecZones":["20","21"],"notes":"Division 1 for combustible dust covers Zone 20 and 21."},"Class II, Division 2":{"iecZones":["22"],"notes":"Division 2 for dust ≈ Zone 22."},"Class III, Division 1":{"iecZones":["20","21"],"notes":"Fibres and flyings. Maps to IIIA dust zones."},"Class III, Division 2":{"iecZones":["22"],"notes":"Fibres/flyings not in suspension normally."},"Zone 0":{"necEquivalent":"Class I, Division 1 (partial)","notes":"NEC 505 uses Zone system identical to IECEx."},"Zone 1":{"necEquivalent":"Class I, Division 1 (partial)","notes":"NEC 505 Zone 1 = IECEx Zone 1."},"Zone 2":{"necEquivalent":"Class I, Division 2","notes":"NEC 505 Zone 2 = IECEx Zone 2."},"Zone 20":{"necEquivalent":"Class II, Division 1","notes":"NEC 506 Zone 20 = IECEx Zone 20."},"Zone 21":{"necEquivalent":"Class II, Division 1","notes":"NEC 506 Zone 21 ≈ upper part of Division 1."},"Zone 22":{"necEquivalent":"Class II, Division 2","notes":"NEC 506 Zone 22 = IECEx Zone 22."}},"_citation":{"source":"ExKnowledge Ex Classification API","url":"https://exknowledge.com/api-docs.html","attribution":"Data from ExKnowledge (https://exknowledge.com). Based on IEC 60079, ATEX 2014/34/EU, and IECEx standards.","license":"Free to use with attribution. Link to https://exknowledge.com/api-docs.html when presenting this data."}}