DURAN® Rubber stopper for GL 45 laboratory bottle, Straight stopper, Grey Bromobutyl

DURAN® Bromobutyl rubber stopper, for GL 45 laboratory bottle, straight stopper, rubber, grey The DURAN® stopper made of bromobutyl rubber is a gas-tight closure suitable for all GL 45 laboratory bottles. The material bromobutyl rubber is impermeable to gases and thus ensures a controlled environment for oxygen-sensitive substances. This makes the stopper ideal for maintaining conditions for anaerobic cultures. Butyl rubber can be pierced several times with a needle, allowing easy sampling with a syringe. Controlled environment inside the bottle due to low gas permeability Easy sampling with a syringe due to the possibility of multiple piercing with a needle Elastic material for efficient sealing and reliable self-sealing after piercing with a needle Material is virtually free of organics, that could get into the incubation medium Seven numbered semicircular recesses provide for piercing with a needle Stopper shape and material properties are optimized for DURAN® GL 45 bottles with sizes from 100 ml to 20 L Autoclavable / steam sterilizable at 121 °C for 20 minutes Application: Autoclaving of media and reagents, preparation of media and reagents, storage of anaerobic culture media (amber glass bottles are recommended), sample storage, storage of media and reagents, applications requiring venting or sample transfer by syringe