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ASTM D 7109 : 2012

ASTM D 7109 : 2012

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus at 30 and 90 Cycles

Available format(s)

Hardcopy , PDF

Superseded date

14-08-2018

Superseded by

ASTM D 7109 : 2018

Language(s)

English

Published date

01-11-2012

Publisher

American Society for Testing and Materials

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Hardcopy - English
PDF - English
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Committee
D 02
DocumentType
Test Method
Pages
8
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

1.1This test method covers the evaluation of the shear stability of polymer-containing fluids. The test method measures the viscosity loss, in mm2/s and percent, at 100°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. Viscosity loss is evaluated after both 30 and 90 cycles of shearing.

Note 1—This test method evaluates the shear stability of oils after both 30 and 90 cycles of shearing. For most oils, there is a correlation between results after 30 cycles and results after 90 cycles of shearing, but this is not universal.
Note 2—Test Method D6278 uses essentially the same procedure with 30 cycles only instead of both 30 and 90 cycles. The correlation between results from this test method at 30 cycles and results from Test Method D6278 has not been established.
Note 3—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 4—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 5—Test Method D5275 also shears oils in a diesel injector apparatus but may give different results.
Note 6—This test method has different calibration and operational requirements than withdrawn Test Method D3945.

1.2The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.3This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are given in Section 8.

ASTM D 6278 : 2017 : EDT 1 Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus
ASTM D 2603 : 2019 Standard Test Method for Sonic Shear Stability of Polymer-Containing Oils
ASTM D 6022 : 2006 : R2012 Standard Practice for Calculation of Permanent Shear Stability Index
ASTM D 7156 : 2017 Standard Test Method for Evaluation of Diesel Engine Oils in the T-11 Exhaust Gas Recirculation Diesel Engine

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