Pycnometer

Become a Premium Member today!

Measuring instrument (Greek pykno = densely packed) for determining the relative density of solids or liquids by weighing. The first such device is attributed to the Arab polymath Abu Raihan Muhammad al-Biruni (973-1048). It consists of a glass flask with a thinly perforated glass stopper and must be calibrated to a certain volume. The density can be determined by filling the flask successively with the liquid to be tested and with water and weighing the two. Pycnometers can be used to determine must weight and alcohol content, among other things. Other devices for these measurements are areometer or refractometers. The picture on the left shows a conventional instrument, the picture on the right a pycnometer with thermometer and cap to reduce evaporation, filled with iso-propanol and copper particles. See also a list of other measuring methods and devices in viticulture under analytical testing.

To read the full text, you must be a Premium Member of wein.plus. You are currently not logged in to wein.plus. Become a Premium Member or log in with your credentials .

Become a Premium Member of wein.plus

Voices of our members

For my many years of work as an editor with a wine and culinary focus, I always like to inform myself about special questions at Wine lexicon. Spontaneous reading and following links often leads to exciting discoveries in the wide world of wine.
Dr. Christa Hanten
Fachjournalistin, Lektorin und Verkosterin, Wien

Welcome back!

Pycnometer

To read the full text, you must be a Premium Member of wein.plus. You are currently not logged in to wein.plus. Become a Premium Member or log in with your credentials .

Voices of our members

The world's largest Lexicon of wine terms.

EVENTS NEAR YOU