Duran® brown lab flasks, without screw cap and pouring ring

The lab flask in brown Duran® glass protects the liquids from ultraviolet rays. Consequently, this lab flask is extremely suitable for light sensitive liquids and for storage of substances in the long run.

  • Graduated.
  • Ultraviolet absorption up to a wavelength of approximately 500 nm.
  • Big inertness and chemical resistance due to a special colouring technique (the brown colour is only baked into the outer side of the glass, inner side remains identical).

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