National Scientific Cap Crimp 20 mm Blue Aluminum/Tinplate Magnetic White Silicone / Blue PTFE 3/1.5 mm Thickness Thinned Penetration Area For

National Scientific Use Thermo Scientific™ surestart™ 20 mm crimp caps with crimp vials that have a 20 mm opening, including Thermo Scientific surestart 20 mL glass crimp top headspace vials (level 3). Select level 3 products for ultimate performance and sensitivity from your methods, while maintaining the highest levels of sample security and integrity. Choose from aluminum and aluminum/magnetic tinplate caps with all-purpose silicone/PTFE septa of various hardness values designed to reduce autosampler needle issues. Use Thermo Scientific™ manual or electronic crimpers and decappers for easy application and removal of crimp caps.

Thermo Scientific performance level 3 caps are specially designed and treated for mass spectrometry applications and contain the lowest amounts of metals, extractables, and leachables, ensuring that you consistently achieve sensitivity and selectivity from your most challenging analytes.

level 3 surestart 20 mm crimp caps feature high temperature septa composed of a specialized silicone formulation that allows for heating to over 250 deg c without excessive septum softening or the release of volatile vapors.

- SPCM (Additional S&H Or Hazmat Fees May Apply)