BSTJ 8: 2. April 1929: Purified Textile Insulation for Telephone Central Office Wiring. (Glenn, H.H.; Wood, E.B.) (1929)
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IFIED TEXTILE INSULATION 251 resistance of the samples. The errors, however, are attributed not to temperature effects on the samples but to variations in relative humidity produced by the temperature changes and the considerable time required for equilibrium to be restored after such changes… … Fig. 6—Humidity cabinet for conditioning samples. To avoid error from this source, all test samples are conditioned by drying in a desiccator at the approximate temperature of the test tank before being placed in the tank. The samples are prepared by winding a number of turns of the textile around…
