The method 1, wherein in the performing step, {HEAD ~ each calibration standard} is attached in turn to {TAIL ~ the test system} via a test fixture for the measurements 
The method 1 , wherein in the performing step , { HEAD ~ each calibration standard } is attached in turn to { TAIL ~ the test system } via a test fixture for the measurements
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH