Api Rp 571 Pdf Extra Quality -

Then she saw the table she was looking for: Parameters that increase susceptibility. Her finger traced the words: Total Acid Number (TAN) > 0.5 mg KOH/g. Temperature range: 450°F to 750°F.

She knelt by the heater’s transfer line. There it was—barely visible under a layer of coke, a series of small, sharp-edged grooves. Not the wide, smooth wash of sulfide corrosion. These were scalloped , just like the photo in API RP 571. api rp 571 pdf

Back in her office, she called Leo. "We need to add guided wave ultrasonic testing on the transfer line elbows and a full NAP inspection scope." Then she saw the table she was looking