1、 FORD LABORATORY TEST METHOD AJ 120-01 Date Action Revisions 2001 01 16 Revised Editorial no technical change A. Cockman 2000 03 22 Editorial no technical change A. Cockman 1990 04 27 Printed copies are uncontrolled Page 1 of 3 Copyright 2001, Ford Global Technologies, Inc. DETERMINATION OF VOLATILE
2、 AND NON-VOLATILE CONTENT OF SOLUBLE OILS AND DRAW COMPOUNDS Application This test method is used to determine the volatile and nonvolatile content of soluble oils and draw compounds. Apparatus Required Analytical Balance Precision +/- 0.1 mg Mechanical Convection Oven Must be capable of maintaining
3、 105 +/- 2 C Desiccator With desiccant Steam Bath Petri Dish (and cover) Glass (60 - 80 mm diameter, 20 - 40 mm depth) Infrared Spectrograph Gas Chromatograph Refer to the ASTM Standards referenced in the Procedure portion of this test method for additional equipment that is required. The above appa
4、ratus is available from any reputable laboratory equipment supply house. 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 not less than 24 h prior to testing and tested un
5、der the same conditions unless otherwise specified. FORD LABORATORY TEST METHOD AJ 120-01 Page 2 of 3 Copyright 2001, Ford Global Technologies, Inc. Procedure 1. Weigh out a 10 g sample in a tared glass Petri dish. Note: The Petri dish is weighed with cover since the sample must be immediately cover
6、ed prior to reweighing before and after oven drying. 2. Place on steam bath with cover removed for initial drying to remove solvents that may be present. 3. Place in an oven at 105 +/- 2 C for 24 h with cover removed. 4. Remove from oven. 5. Replace cover on Petri dish. 6. Place in a desiccator and
7、cool to 23 +/- 2 C. 7. Reweigh. 8. The difference in weight divided by the sample weight multiplied by 100 gives the percent of volatile matter. 9. (100 %) minus (% of volatiles) = (% of non-volatile matter). Note: This test is meaningless if caustic soda or caustic potash are present. The caustic i
8、s usually converted, but not completely, to carbonate on drying. Therefore, the true value for non-volatile matter would not be obtained. Water These procedures are used in determining water in draw compounds and soluble oils. I. Distillation Method Refer to ASTM D 95 II. KFR Method Refer to ASTM D
9、1123 D 1744 E 203 FORD LABORATORY TEST METHOD AJ 120-01 Page 3 of 3 Copyright 2001, Ford Global Technologies, Inc. Notes: 1. KFR method usually tends to give inconclusive answers for the amount of water that might be present if the pH of the solution varies significantly from neutral. Other complex
10、organic substances may also interfere. Therefore, a true value for water content would not be obtained. 2. Distillation method, normally, gives a true answer. Other Volatiles This procedure is used in determining other volatiles in draw compounds and soluble oils. 1. Other volatiles is the differenc
11、e between total volatiles and the water content. 2. If other volatile matter must be identified and quantified, a recovery from the original material is obtained by steam distillation. Then the distillate is examined, after salting out for complete recovery, by: (a) Qualitative identification by infrared. (b) GC for quantitative chemical breakdown. (c) Hydrocarbon content using ASTM D 1319 if feasible. 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.
