Thermostating by means of heat jackets

If no air-bath thermostat is available, excellent column thermostating can be 

Depending on the temperature stability of the circulating water-bath (usually ca. 0.01°), temperature control of better than 0.1° can be obtained. A disadvantage of many heat jackets is the poor temperature control at the top and 

A1 tax Scientific Inc., 1780 Fourth Street, Berkeley, Calif, 94710, U. S. A. Chrompack B.V., Kuipersweg 6, Hiddelburg, The Netherlands. 

Packard-Becker B.V., Vulcanusweg 259, P.O. Box 519, Delft, The Netherlands. Scientific Glass Engineering, Pty. Ltd., Ill Arden Street, North Melbourne, Australia 3051. 

Siemens A6, E 634 Rheinbriicken Strasse, Postfach 211080, 7500 Karlsruhe 21, G. Swagelok , Crawford Fitting Co., 884 East 14Uth Street, Cleveland, Ohio, U. S. Varian Associates, 2700 Mitchell Drive, Walnut Creek, Calif. 94598, U. S. A. Waters Associates Inc., Maple Street, Milford, Mass. 01757, U. S. A. 

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