{"zone":"20","minIP":"IP6X","notes":"Dust-tight required. IP6X prevents dust ingress. Full rating e.g. IP66 includes water protection.","standard":"IEC 60079-31","_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."}}