The Hamilton 1000 Series Gastight Syringes are available in volumes from 1.0mL through 50.0mL. These syringes have precision-machined PTFE plunger tip that creates a leak-free seal. The plungers are replaceable. The 1000 Series Gastight syringes handle larger volumes and are suitable to most applications requiring the handling of corrosive fluid transfers, pipetting, standards make-up, and instrumentation. Maximum temperature for Cemented Needle is 50°C (122°F), Removable Needle, 115°C (239°F) and PTFE Luer Lock, 80°C (176°F). Maximum pressure rating is 200 psig for 1 mL to 10 mL and all others are 100 psig. These Hamilton syringes can be ordered with a Certificate of Calibration. The Certificate of Calibration will be provided with the product and the procedure is performed with an unbroken chain of calibrations traceable to N.I.S.T. Please request at time of purchase.