ASTM D6278-17e1
Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus

Standard No.

ASTM D6278-17e1

Release Date

2017

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D6278-20

Latest

ASTM D6278-20a

Scope

5.1 This test method evaluates the percent viscosity loss for polymer-containing fluids resulting from polymer degradation in the high shear nozzle device. Thermal or oxidative effects are minimized.

5.2 This test method is used for quality control purposes by manufacturers of polymeric lubricant additives and their customers.

5.3 This test method is not intended to predict viscosity loss in field service in different field equipment under widely varying operating conditions, which may cause lubricant viscosity to change due to thermal and oxidative changes as well as by the mechanical shearing of polymer. However, when the field service conditions, primarily or exclusively, result in the degradation of polymer by mechanical shearing, there may be a correlation between the results from this test method and results from the field.

1.1 This test method covers the evaluation of the shear stability of polymer-containing fluids. The test method measures the percent viscosity loss at 1008201;°C of polymer-containing fluids when evaluated by a diesel injector apparatus procedure that uses European diesel injector test equipment. The viscosity loss reflects polymer degradation due to shear at the nozzle.

Note 1: Test Method D2603 has been used for similar evaluation of shear stability; limitations are as indicated in the significance statement. No detailed attempt has been undertaken to correlate the results of this test method with those of the sonic shear test method.

Note 2: This test method uses test apparatus as defined in CEC L-14-A-93. This test method differs from CEC-L-14-A-93 in the period of time required for calibration.

Note 3: Test Method D5275 also shears oils in a diesel injector apparatus but may give different results.

Note 4: This test method has different calibration and operational requirements than withdrawn Test Method D3945.

Note 5: Test Method D7109 is a similar procedure that measures shear stability at both 30 and 90 injection cycles. This test method uses 30 injection cycles only.

1.2 The values stated in SI units are to be regarded as the standard.

1.2.1 Exception—Non-SI units are provided in parentheses.

1.3 This standard does not purport to address all of the safety concerns, if any, associa......

ASTM D6278-17e1 Referenced Document

• ASTM D2603 Test Method for Sonic Shear Stability of Polymer-Containing Oils
• ASTM D445 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (the Calculation of Dynamic Viscosity)
• ASTM D5275 Standard Test Method for Fuel Injector Shear Stability Test (FISST) for Polymer Containing Fluids
• ASTM D6299 Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
• ASTM D7109 Standard Test Method for Shear Stability of Polymer-Containing Fluids Using a European Diesel Injector Apparatus at 30 Cycles and 90 Cycles

ASTM D6278-17e1 history

• 2020 ASTM D6278-20a Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus
• 2020 ASTM D6278-20 Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus
• 2017 ASTM D6278-17e1 Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus
• 2017 ASTM D6278-17 Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus
• 2012 ASTM D6278-12e1 Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus
• 2007 ASTM D6278-07 Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus
• 2002 ASTM D6278-02 Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus
• 1998 ASTM D6278-98 Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus