1、 FORD LABORATORY TEST METHOD AV 001-01 Date Action Revisions 2000 08 07 Editorial no technical change A. Cockman 1992 03 20 Printed copies are uncontrolled Page 1 of 3 Copyright 2000, Ford Global Technologies, Inc. DETERMINATION OF ASPHALT AND EXTENDERS IN INSULATING AND SOUND DEADENING TYPE PAPER B
2、OARD Application This procedure is used to determine the amount of asphalt, extender and paper in sound deadening and insulating materials such as dash insulators. Apparatus Required Extraction Apparatus Soxhlet - Pyrex brand glass (see illustration). Extractor - Medium size, top joint 45/50, bottom
3、 joint 24/40 Condenser - Allihn type, medium size, with joint No. 45/50 Flask - Flat bottom, short neck, 250 mL capacity with joint No. 24/40 Extraction Thimble - Paper, single thickness, 80 x 33 mm, modified by suspending a brass screen inside thimble as shown in Figure 1. Screen has 0.2 mm opening
4、s and is cut to fit I.D. of thimble. Hot Plate - Extraction ty pe with variable heat control. Solvent - Trichlorethylene Conditioning and Test Conditions All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/ - 2 C and 50 +/ - 5 % relative humidity for
5、 not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. Procedure 1. Cut two samples of the insulation board or material to be tested, 50 mm long by 25 mm wide. FORD LABORATORY TEST METHOD AV 001-01 Page 2 of 3 Copyright 2000, Ford Global Technologies, I
6、nc. 2. Insert wire screen in extraction thimble by means of wire hooks and weigh assembly. 3. Add test sample to thimble and weigh. 4. Place thimble containing sample in extractor, add 160 mL of trichlorethylene to flask and assemble extraction apparatus. 5. Adjust temperature of hot plate and reflu
7、x until so lvent drains clear and then for 1/2 hour additional. 6. Remove thimble containing sample, dry in an oven for 1/2 hour at 100 +/ - 2 C. 7. Cool in a desiccator and weigh. Deduct weight of thimble, wire and screen to obtain weight of insoluble material. 8 . Deduct weight of insoluble materi
8、al from original weight of sample to obtain asphalt content in grams. wt. in grams x 2.38 = asphalt in g/m 2 area of sample in mm 2 9. Remove paper board from thimble and weigh. wt. in grams x 2.38 = paper in g /m 2 area of sample in mm 2 10. Weigh thimble, screen and extender and subtract weight of
9、 thimble and screen to obtain weight of extender. wt. in grams x 2.38 = extender in g/m 2 area of sample in mm 2 Weight of asphalt/m 2 + weight of extender/m 2 = tot al mastic in g/m 2 weight of asphalt x 100 = % asphalt total weight of master weight of extender x 100 = % extender total weight of ma
10、ster 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 AV 001-01 Page 3 of 3 Copyright 2000, Ford Global Technologies, Inc. DETERMINATION OF ASPHALT AND EXTENDERS IN INSULATING AND SOUND DEADENING TYPE PAPER BOARD Figure 1
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