DURAN® Bromobutyl Rubber Stopper, for GL 25 or GL 45 Laboratory Bottles

DURAN® Bromobutyl Rubber Stopper, for GL 25 or GL 45 Laboratory Bottles

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DURAN® bromobutyl rubber closures provide a gas tight seal for GL 25 or GL 45 glass laboratory bottles. As a material Bromobutyl rubber is essentially impermeable to most gases, and the stopper provides a controlled environment inside the glass bottle for oxygen sensitive materials. Useful for maintaining anaerobic culture conditions. Bromobutyl rubber allows for multiple punctures providing easy access to the contents with a syringe. A Type III Packaging Material DMF (#35811) for these products has been filed with the FDA. Citations and Research papers: A stable isotope assay with 13C-labeled polyethylene to investigate plastic mineralization mediated by Rhodococcus ruber Researchers @NIOZatSea used 100mL DURAN® GL 45 bottles with bromobutyl stoppers 292062803 to allow repeated headspace measurements Evaluation of Anaerobic Co-Digestion to Enhance the Efficiency of Livestock Manure Anaerobic Digestion Researchers @realkgu used 0.5L DURAN® bottles with bromobutyl stoppers for BMP Test with a N2 gas anaerobic atmosphere Rectinema subterraneum sp. nov, a chemotrophic spirochaete isolated from the deep terrestrial subsurface Researchers @USC performed cultivation in a 1 L DURAN® bottle stoppered with Bromobutyl Rubber Stopper under an atmosphere of N2/CO2 (80:20) at 30 °C Short-term effects of macrophyte removal on emission of CO2 and CH4 in shallow lakes Researchers @LeibnizIGB collected Lake Kemnade sediment samples in 1 L DURAN® Original GL 45 bottles sealed with bromobutyl rubber stoppers Two-stage integrated process for bio-methanol production coupled with methane and carbon dioxide sequestration: Kinetic modelling and experimental validation Researchers @GITAMUniversity used 250mL DURAN® bottles and bromobutyl rubber stoppers

• Bromobutyl rubber elastomer conforms with EP 3.2.9 Type I closure for chemical and penetration tests
• Gas tight seal provides a controlled environment inside the bottle
• Lot specific Certificate of Conformance (CoC) available
• A Type III Packaging Material DMF (#35811) for these products has been filed with the FDA
• Elastic material for effective sealing and reliable self-sealing after needle piercing (21-gauge “21G” or smaller)
• Multiple punctures providing easy access to the contents with a syringe
• Stopper shapes and material properties optimised to fit DURAN® GL 25 or GL 45 bottles
• Suitable for autoclaving / steam sterilising at 121 °C for 20 minutes
• Wide usable temperature range: -50 to +121 °C
• Septum for Head-space analysis