1、 FORD LABORATORY TEST METHOD BO 157-01 Date Action Revisions 2001 04 02 Revised Editorial no technical change A. Cockman 1990 02 08 Printed copies are uncontrolled Page 1 of 3 Copyright 2001, Ford Global Technologies, Inc. TEST FOR ADEQUATE CURING OF FLEXIBLE PVC MATERIALS Application This test meth
2、od is used to check for adequate curing of flexible PVC materials. Apparatus and Materials Required Glass Beaker - 150 mL, 95 mm in height Test Tube Clamp Steel Strip - Approximately 30 x 50 x 1 mm Ethyl Acetate Stop Watch - graduated in 0.2 sec increments Conditioning and Test Conditions All test v
3、alues indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. Procedure 1. Cut a specimen approximately 100 x 15 mm and fold i
4、t around the shorter edge of the steel strip (see Figure 1). 2. Attach the ends of the specimen on the steel strip using a test tube clamp. 3. Immerse specimen in ethyl acetate and start timing. 4. After approximately 2 minutes immersion time, withdraw the specimen from the solution and examine it w
5、ithout magnification for cracks. FORD LABORATORY TEST METHOD BO 157-01 Page 2 of 3 Copyright 2001, Ford Global Technologies, Inc. 5. If uncracked, again immerse in ethyl acetate and restart timing. 6. Stop timing when the first cracks on the specimen are observed. 7. Report the total immersion time.
6、 Note: If cracks are not observed, stop the test after 30 minutes immersion time. Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each party is responsible for determining proper use and handling in its facilities. FORD LABORATORY TEST METHOD BO 157-01 Page 3 of 3 Copyright 2001, Ford Global Technologies, Inc. TEST FOR ADEQUATE CURING OF FLEXIBLE PVC MATERIALS Figure 1
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