What leak rate is used to define an automatic line leak detector?

What leak rate is used to define an automatic line leak detector?

• A. 1 gph
• B. 2 gph
• C. 3 gph
• D. 4 gph

Answer: (C)

Understanding how line leak detection is quantified helps here. An automatic line leak detector is defined by the leak rate it is able to identify as a leak. The threshold used to define an ALLD is 3 gallons per hour. This means the detector will flag a leak if the line is releasing product at or above 3 gph during the test, and typically smaller leaks won’t trip the detector. The 3 gph standard is chosen to provide a practical, consistent benchmark for detecting meaningful leaks without false alarms. Therefore, 3 gph is the correct threshold.

Understanding how line leak detection is quantified helps here. An automatic line leak detector is defined by the leak rate it is able to identify as a leak. The threshold used to define an ALLD is 3 gallons per hour. This means the detector will flag a leak if the line is releasing product at or above 3 gph during the test, and typically smaller leaks won’t trip the detector. The 3 gph standard is chosen to provide a practical, consistent benchmark for detecting meaningful leaks without false alarms. Therefore, 3 gph is the correct threshold.