{"comparison":{"hydrogen":{"gasGroup":"IIC","gasGroupRank":3,"tClass":"T1","ait_c":560,"lel":4,"uel":77,"mesg_mm":0.28,"category":"gas","formula":"H₂","notes":"Highest gas group (IIC) but only T1. Very wide explosive range."},"methane":{"gasGroup":"IIA","gasGroupRank":1,"tClass":"T1","ait_c":595,"lel":5,"uel":15,"mesg_mm":1.14,"category":"gas","formula":"CH₄","notes":"Natural gas primary component. Lowest gas group IIA."}},"notes":{"gasGroupHigher":"hydrogen","widerExplosiveRange":"hydrogen","lowerAIT":"hydrogen"},"_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."}}