Approval Fall ISO-23251/API 521 Nashville Meeting Minutes ...

The guidance was recast in §5.9 (i) indicating the design gauge pressure of 345 kPa (50 psi) is suggested “where appropriate precautions are to ensure that the oxygen concentration is maintained below that required to support combustion”. A reference to §5.5.2 was also added to §5.9 (i) for effects of backpressure on pressure relief device. ................
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