API 6FD : 1995 : R2008

1 SCOPE
2 DESCRIPTION OF FIRE TEST
3 TEST PROCEDURE
4 PERFORMANCE REQUIREMENTS
  4.1 Through Leakage - During Burn Period (High Test
      Pressure)
  4.2 External Leakage - During Burn and Cool-Down Period
      (High Test Pressure, Valve in Closed Position)
  4.3 Through Leakage - After Cooldown (Low Test
      Pressure)
  4.4 External Leakage - After Cooldown (Low Test
      Pressure)
  4.5 Operation of Valve After Fire Test
  4.6 External Leakage - Open Position (High Test
      Pressure)
  4.7 Test Required
5 CERTIFICATION
6 SAFETY CONSIDERATIONS
7 EQUIPMENT MARKING
APPENDIX A - CONVERSIONS OF ENGLISH UNITS TO SI METRIC
             UNITS

Establishes the requirements for testing and evaluating the pressure containing performance of API 6A and 6D check valves when exposed to fire.