TABLE II

Representative Headspace Measurement System Performance Data on Flame-Sealed 4R Clear Tubing Vial Standards. Each Standard Was Measured Five Consecutive Times. The Error Is the Difference between the Mean and Expected Values. Min and Max Refer to the Minimum and Maximum Values of the Five Consecutive Measurements. The Linear Fit Coefficient of the System Performance Was Greater than 0.9999 over the Range of Carbon Dioxide Partial Pressures 0 to 700 Torr

Standard LabelTotal Pressure (Torr)Headspace Carbon Dioxide Partial Pressure (Torr)
ExpectedExpectedMeasured
MeanErrorStDevMinMax
LH-4R-1A0.00.00.00.000.000.00.0
LH-4R-1B550.4550.4549.5−0.900.24549.1549.7
LH-4R-1C90.590.591.20.720.1491.091.4
LH-4R-1D190.5190.5188.2−2.290.11188.1188.3
LH-4R-1E380.5380.5376.0−4.460.16375.8376.2
LH-4R-1F700.5700.5702.62.150.92701.1703.2
LH-4R-1G49.90.00.10.010.010.10.1
LH-4R-1H699.50.70.6−0.130.440.01.0
LH-4R-1I50.40.10.10.010.010.10.1
LH-4R-1J699.91.71.90.130.081.82.0