By Anne Marie Helmenstine, Ph.D.
A pcynometer or specific gravity bottle is a flask with a stopper that has a capillary tube through it, which allows air bubbles to escape. The pycnometer is used to obtain accurate measurements of density.
Lab Safety SignsChemistry Lab Safety RulesKitchen Glassware for Chemistry?
Anne Marie Helmenstine, Ph.D.
©2014 About.com. All rights reserved.