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ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil
ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil12. Report12.1 Report the predicted BPT as determined in 11.1 - 11.3.12.2 Alternatively, it may be desirable to report that the BPT is below a certain specified temperature.12.3 Alternatively, report apparent viscosity and yield stress ...
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ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil
ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil11. Calculations and Determination of BPT11.1 Yield Stress Calculation and Air Binding BPT:11.1.1 Calculate the yield stress of the oil with the following equation:Ys = 3.5 Mwhere:Ys = yield stress, mPa, andM = applied mass, g, at ...
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ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil
ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil10. Yield Stress and Viscosity Measurement Procedure10.1 Viscometric Cell Preparation:10.1.1 If the cells are not clean, clean according to 10.7 cleaning procedure.10.1.2 Place 10 mL ± 0.2 mL of test oil sample into a clean cell.10.1.2.1 ...
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ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil
ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil9. Calibration and Standardization9.1 Temperature Control Calibration Procedure - Calibrate the MRV temperature control by comparing the instruments displayed temperature against a thermometer in the thermowell. The thermometer used ...
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ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil
ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil6. Apparatus6.1 Mini-Rotary Viscometer, consisting of one or more viscometric cells including a calibrated rotor-stator assembly, which are contained in a temperature-controlled aluminum block.6.1.1 The viscometric cell has the following ...
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ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil
ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil4. Summary of Test Method4.1 An engine oil sample is cooled from 80 °C to the desired test temperature at a nonlinear programmed cooling rate over a 10 h period and held at the test temperature for the remainder of a 16 h period. ...
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ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil
ASTM D3829 Predicting the Borderline Pumping Temperature of Engine Oil1. Scope1.1 This test method covers the prediction of the borderline pumping temperature (BPT) of engine oils through the use of a 16 h cooling cycle over the temperature range from 0 °C to -40 °C. The precision is stated for temperatures ...
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ASTM D4652 Specification for Silicone Fluid Used for Electrical Insulation
ASTM D4652 Specification for Silicone Fluid Used for Electrical Insulation4. Sampling and Testing4.1 Take all samples in accordance with Methods D923.4.2 Test in accordance with the methods specified in Table 1.NOTE 1 - Because of the different needs of the various users, items relating to packaging, ...
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ASTM D4652 Specification for Silicone Fluid Used for Electrical Insulation
ASTM D4652 Specification for Silicone Fluid Used for Electrical Insulation1. Scope1.1 This specification covers silicone fluid for use in transformers, capacitors, and electronic assemblies as an insulating or cooling medium, or both.1.2 Silicone fluid covered by this specification is polydimethylsiloxane ...
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ASTM D2225 Test Methods for Silicone Fluids Used for Electrical Insulation
ASTM D2225 Test Methods for Silicone Fluids Used for Electrical Insulation21. Report21.1 The report shall consist of the separate reports detailed in the specific methods used.22. Precision and Bias22.1 Use the precision and bias statements for each referenced method.23. Keywords23.1 electrical insulating ...
