Hydraulic and Pneumatic Corrosion Measurement

Before making a calculation of safe working pressure from the allowable working stress and measured wall thickness, a corrosion measurement or conservative estimate of the corrosion depth is made.

1. Tactile measurements should be made.
2. Where only a boreoscope can be used, interpretation of ultrasonic thickness testing should also be used. [ Instructions for Ultrasonic Thickness Testing ]

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