Teflon Permeation Type Helium Calibrated Leak Standard LR: 9.0 X 10-5 atm-cc/s (+/- 0.1) Customer Connection: KF25 Vacuum Fitting Features: Reliable Teflon Permeation Type Leak Element. All Stainless Steel Construction, Temperature Coefficient 2.5%/ Degree C. Manual shut-off valve. A2LA Accredited Calibration with N.I.S.T. traceable documentation included.
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