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ASTM D4172 for wear preventive characteristics of lubricating fluid (Four-ball m
ASTM D4172 for wear preventive characteristics of lubricating fluid (Four-ball method)11. Precision and BiasNOTE 4 - The precision data were derived from cooperative testing by 13 laboratories on 5 oils under the conditions listed in Section 7. A description of the oils and the average of wear scars ...
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ASTM D4172 for wear preventive characteristics of lubricating fluid (Four-ball m
ASTM D4172 for wear preventive characteristics of lubricating fluid (Four-ball method)10. Procedure10.1 Thoroughly clean four test balls, clamping parts for upper and lower balls and the oil cup using solvent or solvents with precautions indicated in 6.2. The parts can be final wiped using a fresh (unused) ...
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ASTM D4172 for wear preventive characteristics of lubricating fluid (Four-ball m
ASTM D4172 for wear preventive characteristics of lubricating fluid (Four-ball method)6. Apparatus6.1 Four-Ball Wear Test Machine - See Figs. 1-3.NOTE 3 - It is important to distinguish between the Four-Ball E.P. and the Four-Ball Wear Test Machines. The Four-Ball E.P. Test Machine is designed for testing ...
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ASTM D4172 for wear preventive characteristics of lubricating fluid (Four-ball m
ASTM D4172 for wear preventive characteristics of lubricating fluid (Four-ball method)4. Summary of Test Method4.1 Three 12.7-mm [1/2-in.] diameter steel balls are clamped together and covered with the lubricant to be evaluated. A fourth 12.7-mm diameter steel ball, referred to as the top ball, is pressed ...
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ASTM D4172 for wear preventive characteristics of lubricating fluid (Four-ball m
ASTM D4172 for wear preventive characteristics of lubricating fluid (Four-ball method)1. Scope1.1 This test method covers a procedure for making a preliminary evaluation of the anti-wear properties of fluid lubricants in sliding contact by means of the Four-Ball Wear Test Machine. Evaluation of lubricating ...
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ASTM D4283 standard test method for viscosity of silicone fluids
ASTM D4283 standard test method for viscosity of silicone fluids7. Procedure7.1 Follow manufacturer's directions for using their viscometers.8. Calculation8.1 Calculate the viscosity of silicone fluids as follows:Efflux Time (s) x Viscometer Constant (F) = Viscosity (cSt)9. Precision and Bias9.1 Precision ...
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ASTM D4283 standard test method for viscosity of silicone fluids
ASTM D4283 standard test method for viscosity of silicone fluids4. Apparatus4.1 Viscometer Recommendations:4.1.1 Ostwald Viscometer - up to 5000 cSt.4.1.2 Ubbelohde Viscometer - up to 100 000 cSt.4.1.3 Cannon Fenski - up to 5000 cSt.4.2 Constant Temperature Bath, of 25 6 0.2 °C.4.3 Cleaning Solution ...
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ASTM D4283 standard test method for viscosity of silicone fluids
ASTM D4283 standard test method for viscosity of silicone fluids1. Scope1.1 This test method covers the measurement of the kinematic viscosity of silicone fluids for polish applications.1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the ...
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ASTM D94 standard test method for saponification number of petroleum products
ASTM D94 standard test method for saponification number of petroleum products21. Calculation21.1 Calculate the saponification number, A, as follows:where:56.1 = molecular weight of KOH,M = molarity of HCl,VB = volume of acid used in titrating the blank, mL,VS = volume of acid used in titrating the sample, ...
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ASTM D94 standard test method for saponification number of petroleum products
ASTM D94 standard test method for saponification number of petroleum productsMETHOD B - POTENTIOMETRIC TITRATION14. Apparatus14.1 Erlenmeyer Flask and Condenser - An Erlenmeyer flask, 250 or 300-mL capacity, alkali-resistant (see Note 2), to which is attached a straight or mushroom-type reflux condenser. ...
