DURAN® Bromobutyl Rubber Stopper, for GL 25 and GL 45 Laboratory bottles

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DURAN® Bromobutyl Rubber Stopper, for GL 25 Laboratory bottle, straight plug, natural rubber, grey
DURAN® bromobutyl rubber closure provide a gas tight seal for all GL 25 and GL 45 laboratory bottles. Bromobutyl rubber is essentially impermeable to most gases, and provides a controlled environment inside the glass bottle for oxygen sensitive materials. Useful for maintaining anaerobic culture conditions. Butyl rubber allows for multiple punctures providing easy access to the contents with a syringe.
Features and Benefits:

• Bromobutyl rubber elastomer (USP <381> / EP 3.2.9 Type I closure for chemical and penetration tests)
• Gas tight seal provides controlled environment in the bottle
• Certificate of Conformance (CoC)
• Multiple punctures providing easy access to the contents with a syringe
• Elastic material for effective sealing and reliable self-sealing after needle piercing (21-gauge “21G” or smaller)
• Material is virtually free of organics that might leach into the incubation medium
• Stopper shape and material properties optimised to fit DURAN® GL 25 and GL 45 bottles
• Wide usable temperature range: -50 to +121 °C
• Suitable for autoclaving / steam sterilising at 121 °C for 20 minutes

Application: Culture of anaerobic microorganisms, Storage of anaerobic culture media, Aerobic methane oxidation (MOx) research, Storage of oxygen or moisture sensitive materials such as APIs, Nitrogen Blanketing, Applications requiring gas purging or sample transfer via a syringe