Volumetric flasks are supplied with a batch number and an accompanying batch certificate in the original packaging. On request, they are available also with an individual certificate, GB individual certificate or IMTC calibration certificate. With the exception of the wide neck design, the graduated flasks are also available with GB individual and batch certificates.
Strict statistical quality controls ensure maintenance of these high standards. Volumetric flasks are indispensable for preparing dilutions and standard solutions. These stoppers reduce the danger of breakage if a flask tips over, and help to prevent it from rolling off the workbench.
How to Use a Volumetric Flask
Measure and add the solute for the solution.
Add enough solvent to dissolve the solute.
Continue to add solvent until you near the line marked on the volumetric flask.
Use a pipette or dropper to fill the volumetric flask, using the meniscus of the solution and the line on the flask to determine your endpoint.
Seal the volumetric flask and invert it to thoroughly mix the solution.