Thermo Fisher, CHBS-20F, SureSTART™ 20 mm GC Vial Stoppers (Level 1)

No. per Pack: 5000/Pk.
Unit Size: Case of 5000
Use our performance Level 1 stoppers with crimp vials that have a 20 mm opening and a secure push fit for optimal performance from your everyday chromatography analyses.Level 1 SureSTART 20 mm Stoppers are manufactured from low permeability bromobutyl rubber, making them suitable for low temperature gas analysis and low volatility gas storage.The SureSTART Performance Levels• Level 1: Everyday analysisChromatography approved SureSTART Level 1 products are cost optimized, suitable for all instrument types, and quality tested to deliver the performance, sample security, and reproducibility you need for everyday analyses. They are an ideal solution for verifying compound presence and quantification using detection techniques such as UV, RI, and FID.• Level 2: High-throughput analysisWhen robustness and reproducibility are keySureSTART Level 2 products have very low metal contents, extractables, and leachables to ensure that they conform to the high standards you need to meet your regulatory requirements. These products support routine analyses and deliver high quality data with an uninterrupted workflow.• Level 3: High performanceWhen sensitivity is a mustSureSTART Level 3 products are packed in clean rooms to protect against environmental factors. They contain the lowest levels of metals, extractables, and leachables to ensure consistent, reproducible sensitivity and selectivity for the most challenging analytes. Choose these products for ultimate method performance and high levels of and sample security and integrity.All SureSTART vials, closures, and septa are certified to meet physical parameter specifications as part of our manufacturing process.