The packing assembly was subjected to an EPA Method 21 leakage test with over 100,000 mechanical cycles of operation, and {HEAD ~ a packing leakage} of less than 500 ppm was obtained using {TAIL ~ methane} as the test fluid 
obtained using
The packing assembly was subjected to an EPA Method 21 leakage test with over 100,000 mechanical cycles of operation , and { HEAD ~ a packing leakage } of less than 500 ppm was obtained using { TAIL ~ methane } as the test fluid
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH