The primary goal of the code is to provide uniform rules for determining the performance of positive displacement machines. These machines are characterized by pulsating flow, which makes standard testing methods challenging. Intertek Inform Key Parameters Measured:
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: A widely cited version titled "Displacement Compressors, Vacuum Pumps, and Blowers". The primary goal of the code is to
The test procedures outlined in ASME PTC 9 include: PTC 9 is still used for:
Although superseded by ASME PTC 10 and ASME PTC 13 , PTC 9 is still used for: