SureSTART crimp cap silver 11 mm made of Aluminum with septum 1.3 mm made of Silicone/Polytetrafluorethylene (PTFE). 5000 pieces per package. About SureSTART™ 11 mm Crimp Caps for Level 1 Routine Analysis Use Thermo Scientific™ SureSTART™ 11 mm crimp caps with 11 mm opening crimp vials, including our SureSTART 2 ml glass crimp vials (Level 1). Choose level 1 caps for products that are approved for chromatography, cost-optimized, suitable for everyday analysis and compatible with all instrument types. Choose from aluminum caps with silicone/PTFE or rubber/TEF septa with different hardness values designed to reduce problems with autosampler needles. Use Thermo Scientific™ manual or electronic crimping and de-flanging pliers for easy application and removal of flare caps.Meer tonenMinder tonen