PSS-1000 Optical Sheet Chemical Stress Crazing Test PURPOSE Determine the stress threshold at which the material would craze in contact with unleaded gasoline. TEST METHOD ASTM F791-96 TEST PROCEDURES The specimens were tested in accordance with Procedure A - Craze Stress Iteration per ASTM F791-96. Each specimen was loaded for 10 minutes and visually inspected under load before the addition of the gasoline. The gasoline was in contact with the specimen for 30 minutes for each iteration. The room environment was 72 to 74F and 20 to 23 R.H. during the test. Results The critical crazing stress determined by ASTM F791 Method A Material Chemical Critical Crazing Stress PSS-1000 sheet Gasoline 2750250 psi Polycarbonate Gasoline 1750250 psi Photographs documenting significant observations were taken during the examination PSS-1000 Sheet Polycarbonate Testing performed February 13 2012 by Materials Evaluation and Engineering Inc 2014 ESP. All Rights Reserved.
