Overview: The document provides an altitude simulation chart for the FlexPak Leak Detector, detailing the vacuum levels required to simulate various altitudes based on the ASTM D6653 testing standard.
Specifications: The chart lists altitudes in both feet and meters, alongside the corresponding absolute atmospheric pressure in inches of mercury (inHg) and kilopascals (kPa). It also specifies the vacuum gauge setpoints needed to achieve these pressures.
Key Data: - At sea level (0 ft/0 m), the absolute atmospheric pressure is 29.9 inHg (101 kPa) with a vacuum setpoint of 0.
- At 10,000 ft (3,048 m), the pressure is 20.6 inHg (69.7 kPa) with a vacuum setpoint of 9.3 inHg (31.3 kPa).
- At 50,000 ft (15,240 m), the pressure drops to 3.27 inHg (11.1 kPa) with a vacuum setpoint of 26.6 inHg (89.9 kPa).
Procedures: To simulate a specific altitude, the leak detector's vacuum gauge must reach the setpoint corresponding to the desired altitude pressure.
Recommendations: Ensure the leak detector is calibrated according to the chart to accurately simulate altitude conditions for testing purposes.
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