Plastic Volumetric Flasks

Description

• Prior to autoclaving plastic labware, ensure that no residual contamination remains on the item.
• Otherwise, the residual contamination will bake on solidly during the autoclaving process. Even substances that have no effect on the plastic at room temperature can have negative effects on the plastic during the autoclaving process, including persistent clouding.
• Additionally, microorganisms might not be killed effectively if they are protected by the residual contamination.
• Containers with screw tops or stoppers must be open during autoclaving to allow for pressure equalization – Autoclaving of a closed container will lead to the deformation or destruction of the container.
• Plastic labware should be stood upright on a level surface during autoclaving to avoid shape deformation – Plastic labware should NOT be laid on its side during autoclaving.
• No mechanical stresses should be present during autoclaving – For example, do not stack items.
• Do not autoclave any container that contains residual contamination or even rinsing agent.
• Some transparent plastics can absorb minute quantities of steam, which can lead to reversible clouding. This clouding disappears upon drying.