A Test Method for Measuring the Stiffness of Coated Fabrics at Low Temperatures.

摘要

A test method was developed for use in determining the stiffness of plastic and rubber-coated fabrics at low temperatures by use of a torsional wire apparatus. From the test data obtained with this method, angular twist versus temperature curves can be prepared, and the temperatures at which the relative moduli of the coated fabric are 2,5,10, and 100 times as large as the modulus at room temperature can be determined. The method has been accepted by the American Society for Testing and Materials and has been published as ASTM D3388-75.