1、 FORD LABORATORY TEST METHOD BT 101-01 Date Action Revisions 2000 11 10 Revised Editorial no technical change A. Cockman 1998 09 03 Printed copies are uncontrolled Page 1 of 2 Copyright 2000, Ford Global Technologies, Inc. EMULSIFIABILITY AND FOAMING TEST FOR COOLANTS Application This procedure is u
2、sed to test the emulsification and foaming properties of cutting fluids, coolants and radiator water soluble anti - rust. Apparatus Required Mechanical Mixer A laboratory mixe r, preferable motor - driven with a beater similar to one commonly used in most food mixers except that only one beater is u
3、sed. 1300 rpm, propeller type stirrer, stainless steel, four - blade, diameter 45 - 50 mm. Water For the determination of foaming as w ell as emulsifiability of the material to be tested a synthetic water with a total hardness of 3.58 mmol CaCl 2 6H 2 O and MgSO 4 7H 2 O per liter shall be used whic
4、h is prepared from: 17 mL of solution A 3 mL of solution B 980 mL of boiled and cooled, di stilled chemically pure water* Solution A 39 g calcium chloride (CaCl 2 6H 2 O), A.R., dissolved with distilled water to 1 liter. 1 mL of this solution A diluted with distilled water to 1 liter results in wate
5、r of a hardness of 0.179 mmol CaCl 2 6H 2 O per liter. Solution B 44 g magnesium sulphate (MgSO 4 7H 2 O), A.R., dissolved with distilled water to 1 liter. 1 mL of this solution B diluted with distilled water to 1 liter results in water of a hardness of 0.179 mmol MgSO 4 7H 2 O per liter. Glass Beak
6、ers 800 mL and 1000 mL, tall form. FORD LABORATORY TEST METHOD BT 101-01 Page 2 of 2 Copyright 2000, Ford Global Technologies, Inc. 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 h
7、umidity for not less than 24 h prior to testing and t ested under the same conditions unless otherwise specified. Procedure Emulsifiability Test 1. In a 1000 mL tall form Griffin beaker place 500 mL of synthetic water. 2. Stir the water with a mixer operating at 1300 5 RPM. 3. Slowly add 25 mL or as
8、 s pecified by Materials Specification of the test sample and continue stirring for two minutes. Note: During the emulsification process, the propeller blades should be positioned approximately 20 mm above the bottom of the beaker. 4. Cover the beaker and allow to stand for 24 h at ambient temperatu
9、re. Evaluation Examine for the presence of creaming and oil separation. A slight separation of oil globules is permissible, but if sufficient oil separates to cover the surface of the emulsion, this is the cau se for rejection. Foaming Test 1. In an 800 mL Griffin beaker, heat 500 mL of water (havin
10、g the same hardness as that used for making emulsions in the shop) at 71 +/ - 2 C. 2. Stir the water with a mixer having a single beater and operating at a medium speed 1300 +/ - 50 rpm. 3. Slowly add 25 mL or as specified by Materials Specification of the test sample and continue stirring for five
11、minutes. Note: Material which foams out of the beaker is considered too foamy. During this process the propeller blades should be positioned approximately 20 mm below the liquid surface. 4. Measure and report the height of the foam in mm after five minutes stirring and after ten minu tes standing. 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.
