FORD FLTM BO 006-02-2001 DETERMINATION OF ASH CONTENT OF MOLDED MATERIALS《模制材料中的灰分含量的测定》.pdf

1、 FORD LABORATORY TEST METHOD BO 006-02 Date Action Revisions 2001 03 20 Editorial no technical change A. Cockman 1992 07 13 Printed copies are uncontrolled Page 1 of 2 Copyright 2001, Ford Global Technologies, Inc. DETERMINATION OF ASH CONTENT OF MOLDED MATERIALS Application This procedure is used t

2、o determine the ash content of molded materials used in various automotive parts. Apparatus Required Analytical Balance Sensitive to .1 mg. Muffle Furnace Capable of maintaining a temperature of 1500 +/- 20 F. Crucible Standard porcelain with cover. Desiccator Charged with calcium chloride. Conditio

3、ning 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 not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. Procedure 1. Fire a crucible

4、and cover in the muffle furnace at 1500 F for 30 minutes, cool in a desiccator and weigh to the nearest 0.1 mg. 2. Weigh a molded part to the nearest 0.1 mg (3 g max) and transfer to the crucible with tweezers. If the part is larger than 3 g, cut off representative pieces to approximately 3 g. 3. Pl

5、ace covered crucible in cold muffle furnace set at 1500 F and start furnace. FORD LABORATORY TEST METHOD BO 006-02 Page 2 of 2 Copyright 2001, Ford Global Technologies, Inc. 4. Remove cover after temperature reaches 1500 F. Burn to constant weight. 5. Cover the crucible, cool in a desiccator and weigh. weight of ash x 100 = % ash weight of sample 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.