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ASTM D5293 for apparent viscosity of engine oils by Cold-cranking simulator
9. Sampling9.1 To obtain valid results, use an appropriate means of bulk sampling (see Practice D 4057) to obtain a representative sample of test oil free from suspended solid material and water. When the sample in its container is received below the dew point temperature of the room, allow the sample ...
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ASTM D5293 for apparent viscosity of engine oils by Cold-cranking simulator
7. Reagents and Materials7.1 Acetone - (Warning - Danger - Extremely fammable. Vapors can cause fire.)7.2 Methanol - (Warning - Danger - Flammable. Vapor harmful.)7.3 Petroleum Naphtha - (Warning - Combustible vapor harmful.)7.4 Calibration Oils - Low-cloud point Newtonian oils of known viscosity and ...
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ASTM D5293 for apparent viscosity of engine oils by Cold-cranking simulator
6. Apparatus6.1 Two types of apparatus are available for use in this test method: the manual cold-cranking simulator (see 6.2) and the automated CCS (see 6.3 and 6.4).6.2 Manual CCS8, consisting of a direct current (dc) electric motor that drives a rotor inside a stator; a rotor speed sensor or tachometer ...
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ASTM D5293 for apparent viscosity of engine oils by Cold-cranking simulator
5. Significance and Use5.1 The CCS apparent viscosity of automotive engine oils correlates with low temperature engine cranking. CCS apparent viscosity is not suitable for predicting low temperature flow to the engine oil pump and oil distribution system. Engine cranking data were measured by the Coordinating ...
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ASTM D5293 for apparent viscosity of engine oils by Cold-cranking simulator
4. Summary of Test Method4.1 An electric motor drives a rotor that is closely fitted inside a stator. The space between the rotor and stator is filled with oil. Test temperature is measured near the stator inner wall and maintained by regulated flow of refrigerated coolant through the stator. The speed ...
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ASTM D5293 for apparent viscosity of engine oils by Cold-cranking simulator
3. Terminology3.1 Definitions3.1.1 Newtonian oil or fluid, n-one that exhibits a constant viscosity at all shear rates.3.1.2 non-Newtonian oil or fluid, n-one that exhibits a viscosity that varies with changing shear stress or shear rate.3.1.3 viscosity, , n-the property of a fluid that determines its ...
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ASTM D5293 for apparent viscosity of engine oils by Cold-cranking simulator
1. Scope1.1 This test method covers the laboratory determination of apparent viscosity of engine oils by cold cranking simulator (CCS) at temperatures between -5 and -35°C at shear stresses of approximately 50 000 to 100 000 Pa and shear rates of approximately 10(x5) to 10(x4) s(-1) and viscosities ...
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ASTM D1743 for corrosion preventive properties of lubricating grease
11. Rating Procedure11.1 Remove the bearing from the test jar and place the bearing cup in a 50 + 50 mixture by volume of isopropyl alcohol (Warning - Flammable) and mineral spirits, reagent grade (Warning - Combustible. Vapor harmful). The solvent mixture can be heated to facilitate the removal of the ...
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ASTM D1743 for corrosion preventive properties of lubricating grease
10. Procedure10.1 With the reservoir of grease packer resting on a clean bench top, and while wearing gloves, place bearing cup with small diameter face down into the recess of the packer. Place the bearing cone over the cup, and while holding the bearing assembly against the packer, lift and invert ...
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ASTM D1743 for corrosion preventive properties of lubricating grease
9. Preparation of Bearings9.1 Examine the test bearings carefully and select only bearings that have outer races (cups) and rollers entirely free of corrosion. During the bearing preparation handle the bearings with tongs or rubber or plastic gloves. Do not touch bearings with the fingers at any time.9.2 ...
