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The (Performance Test Code) is the standard for testing Displacement Compressors, Vacuum Pumps, and Blowers . While the most common version is dated 1970 (reaffirmed in 1997), it has largely been superseded by more modern standards like ASME PTC 13 and ISO 1217 for industry-wide performance verification . Core Purpose of ASME PTC 9
Since it is no longer an active American National Standard, official "best" copies are primarily found through digital archives or professional society libraries: Official ASME Store : You can purchase the historical version of
The search for the represents a critical step for engineers, plant operators, and performance specialists looking to evaluate displacement compressors. Published by the American Society of Mechanical Engineers (ASME), the Performance Test Codes (PTC) are the gold standard for industrial equipment testing.