FORD FLTM BS 002-1-2000 WARP TEST ON PAPER BOARD.pdf

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1、 FORD LABORATORY TEST METHOD BS 002-01 Date Action Revisions 2000 11 10 Revised Editorial no technical change A. Cockman 1992 08 06 Printed copies are uncontrolled Page 1 of 2 Copyright 2000, Ford Global Technologies, Inc. WARP TEST ON PAPER BOARD Application This procedure is used to determine the

2、amount of warp in paper board materials, such as asphalt forming board, resin panel board, etc. Apparatus Required Warp Test Fixture - see sketch. Conditioning and Test Conditions All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/ - 2 C and 50 +/ -

3、 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. Procedure 1. Cut two samples, each 6 inches wide and 17 inches long, one with the grain and one across the grain. 2. Cut a 1/2 x 2 inch slot in the center of one end of eac

4、h test specimen. Place the test specimen in the fixture shown in the sketch and move the adjustable bracket forward so that 15 inches of the test specimen are exposed between the two brackets of the fixture and tighten the wing nut. Place a 1/2 inch steel rod on the free end of the test specimen whi

5、ch will allow free movement during warping but which will prevent this end from curling up. 3. Immerse the fixture and test specimen under 1 inch of water at 70 +/ - 2 F for the time required by the material specification. 4. Remove from the water and measure the maximum height the sampl e has risen

6、 from the base plate of the fixture. 5. Repeat the test on the other sample which was cut in the opposite direction. 6. Calculate the percent of warp on both test specimens and report as required by the material specification. maximum height x 100 = % warp 15 inches Chemicals, materials, parts, and

7、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 BS 002-01 Page 2 of 2 Copyright 2000, Ford Global Technologies, Inc. WARP TEST ON PAPER BOARD Appar atus for Warp Test of Paper Board

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