American National Standard Institute (ANSI) ANSI 156.1 ItemANSI 156.1 Cycle-testGrade 1: 2,500,000Grade 2: 1,500,000Grade 3: 350,000Fire TestPass UL 10 C 3 hours fire testAnti-corrosionSalt Spray Test 200 hours This Standard establishes requirements for butts and hinges. Cycle tests, lateral and v