ASTM D7528-17
(Test Method)Standard Test Method for Bench Oxidation of Engine Oils by ROBO Apparatus
Standard Test Method for Bench Oxidation of Engine Oils by ROBO Apparatus
SIGNIFICANCE AND USE
5.1 This bench test method is intended to produce comparable oil aging characteristics to those obtained with ASTM TMC Sequence IIIGA matrix reference oils 434, 435 and 438 after aging in the Sequence IIIG engine test.
5.2 To the extent that the method generates aged oils comparable to those from the Sequence IIIG engine test, the measured increases in kinematic and MRV viscosity indicate the tendency of an oil to thicken because of volatilization and oxidation, as in the Sequence IIIG and IIIGA (see Appendix X1 in Test Method D7320) engine tests, respectively.
5.3 This bench test procedure has potential use in specifications and classifications of engine lubricating oils, such as Specification D4485.
SCOPE
1.1 This test method describes a bench procedure to simulate the oil aging encountered in Test Method D7320, the Sequence IIIG engine test method. These aged oils are then tested for kinematic viscosity and for low-temperature pumpability properties as described in the Sequence IIIGA engine test, Appendix X1 of Test Method D7320.
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.2.1 Exceptions—There are no SI equivalents for some apparatus in Section 6, and there are some figures where inch units are to be regarded as standard.
1.3 This 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 Sections 7 and 8.
1.4 This test method is arranged as follows:
Section
Scope
1
Reference Documents
2
Terminology
3
Summary of Test Method
4
Significance and Use
5
Apparatus
6
Reagents and Materials
7
Hazards
8
Reference Oil Testing and Test Stand Calibration
9
Procedure
10
Cleaning
11
Calculations and Determination of Test Results
12
Report
13
Precision and Bias
14
Keywords
15
Annexes
Reaction Vessel
Annex A1
Reaction Vessel Head
Annex A2
Reaction Vessel-to-Head Seal
Annex A3
Agitator Turbine Blade
Annex A4
Agitator Packing Gland
Annex A5
Nitrogen Dioxide Graduated Tube
Annex A6
Vacuum System Plumbing
Annex A7
Vacuum Trap Condensers
Annex A8
Setting the Vacuum Control Valve
Annex A9
Appendixes
Sample Preparation and Addition
Appendix X1
Charging the Liquid Nitrogen Dioxide
Appendix X2
Nitrogen Dioxide Precision Needle Valve
Appendix X3
Example of an Assembled ROBO Apparatus
Appendix X4
Information Package to Aid Setting Up a New Robo Apparatus
Appendix X5
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Designation: D7528 − 17
Standard Test Method for
1
Bench Oxidation of Engine Oils by ROBO Apparatus
This standard is issued under the fixed designation D7528; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Any properly equipped laboratory, without outside assistance, can use the procedure described in
2
this test method. However, theASTM Test Monitoring Center (TMC) provides reference oils and an
assessment of the test results obtained on those oils by the laboratory. By these means, the laboratory
will know whether its use of the test method gives results statistically similar to those obtained by
other laboratories. Furthermore, various agencies require that a laboratory utilize the TMC services in
seeking qualification of oils against specifications. For example, the U.S. Army imposes such a
requirement in connection with several Army engine lubricating oil specifications.
This test method is written for use by laboratories that utilize the portions of the test method that
refer to the TMC services.
This test method may be modified by means of information letters issued by the TMC. In addition,
the TMC may issue supplementary memoranda related to the method.
1. Scope*
Section
Scope 1
1.1 This test method describes a bench procedure to simu-
Reference Documents 2
late the oil aging encountered in Test Method D7320, the Terminology 3
Summary of Test Method 4
Sequence IIIG engine test method. These aged oils are then
Significance and Use 5
tested for kinematic viscosity and for low-temperature pump-
Apparatus 6
ability properties as described in the Sequence IIIGA engine Reagents and Materials 7
Hazards 8
test, Appendix X1 of Test Method D7320.
Reference Oil Testing and Test Stand Calibration 9
Procedure 10
1.2 Units—The values stated in SI units are to be regarded
Cleaning 11
as standard. No other units of measurement are included in this
Calculations and Determination of Test Results 12
standard.
Report 13
Precision and Bias 14
1.2.1 Exceptions—There are no SI equivalents for some
Keywords 15
apparatus in Section 6, and there are some figures where inch
Annexes
units are to be regarded as standard. Reaction Vessel Annex A1
Reaction Vessel Head Annex A2
1.3 This standard does not purport to address all of the
Reaction Vessel-to-Head Seal Annex A3
safety concerns, if any, associated with its use. It is the Agitator Turbine Blade Annex A4
Agitator Packing Gland Annex A5
responsibility of the user of this standard to establish appro-
Nitrogen Dioxide Graduated Tube Annex A6
priate safety and health practices and determine the applica-
Vacuum System Plumbing Annex A7
bility of regulatory limitations prior to use. Specific warning Vacuum Trap Condensers Annex A8
Setting the Vacuum Control Valve Annex A9
statements are given in Sections 7 and 8.
Appendixes
1.4 This test method is arranged as follows:
Sample Preparation and Addition Appendix X1
Charging the Liquid Nitrogen Dioxide Appendix X2
Nitrogen Dioxide Precision Needle Valve Appendix X3
Example of an Assembled ROBO Apparatus Appendix X4
1
This test method is under the jurisdiction of ASTM Committee D02 on
Information Package to Aid Setting Up a New Robo Apparatus Appendix X5
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
1.5 This international standard was developed in accor-
Subcommittee D02.B0.07 on Development and Surveillance of Bench Tests
dance with internationally recognized principles on standard-
Methods.
Current edition approved May 1, 2017. Published May 2017. Originally
ization established in the Decision on Principles for the
approved in 2009. Last previous edition approved in 2013 as D7528 – 13. DOI:
Development of International Standards, Guides and Recom-
10.1520/D7528-17.
2
mendations issued by the World Trade Organization Technical
ASTMTestMonitoringCenter,6555PennAvenue,Pittsburgh,PA15206-4489.
www.astmtmc.cmu.edu. Barriers to Trade (TBT) Committee.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7528 − 17
2. Referenced Documents surface. After cooling, the oxidized, concentrated test oil is
3 subjected to pertinent viscometric tests. Evaporated oil is
2.1 ASTM Standards:
condensed in order to weigh it and calculate evaporative loss.
D445 Test Method for Kinematic Viscosity of Transparent
and Opaque Liquids (and Calculation of Dynamic Viscos-
5. Significance and Use
ity)
5.1 This bench test met
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D7528 − 13 D7528 − 17
Standard Test Method for
1
Bench Oxidation of Engine Oils by ROBO Apparatus
This standard is issued under the fixed designation D7528; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Any properly equipped laboratory, without outside assistance, can use the procedure described in
2
this test method. However, the ASTM Test Monitoring Center (TMC) provides reference oils and an
assessment of the test results obtained on those oils by the laboratory. By these means, the laboratory
will know whether its use of the test method gives results statistically similar to those obtained by
other laboratories. Furthermore, various agencies require that a laboratory utilize the TMC services in
seeking qualification of oils against specifications. For example, the U.S. Army imposes such a
requirement in connection with several Army engine lubricating oil specifications.
Accordingly, this This test method is written for use by laboratories that utilize the portions of the
test method that refer to the TMC services. Laboratories that choose not to use the TMC services may
simply ignore these portions.
This test method may be modified by means of information letters issued by the TMC. In addition,
the TMC may issue supplementary memoranda related to the method.
1. Scope*
1.1 This test method describes a bench procedure to simulate the oil aging encountered in Test Method D7320, the Sequence
IIIG engine test method. These aged oils are then tested for kinematic viscosity and for low-temperature pumpability properties
as described in the Sequence IIIGA engine test, Appendix X1 of Test Method D7320.
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this
standard.
1.2.1 Exceptions—There are no SI equivalents for some apparatus in Section 6, and there are some figures where inch units are
to be regarded as standard.
1.3 This 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 Sections 7 and 8.
1.4 This test method is arranged as follows:
Section
Scope 1
Reference Documents 2
Terminology 3
Summary of Test Method 4
Significance and Use 5
Apparatus 6
Reagents and Materials 7
Hazards 8
Reference Oil Testing and Test Stand Calibration 9
Procedure 10
Cleaning 11
Calculations and Determination of Test Results 12
Report 13
Precision and Bias 14
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.B0.07 on Development and Surveillance of Bench Tests Methods.
Current edition approved May 1, 2013May 1, 2017. Published June 2013May 2017. Originally approved in 2009. Last previous edition approved in 20092013 as
D7528 – 09.D7528 – 13. DOI: 10.1520/D7528-13.10.1520/D7528-17.
2
ASTM Test Monitoring Center, 6555 Penn Avenue, Pittsburgh, PA 15206-4489. www.astmtmc.cmu.edu.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7528 − 17
Section
Keywords 15
Annexes
Reaction Vessel Annex A1
Reaction Vessel Head Annex A2
Reaction Vessel-to-Head Seal Annex A3
Agitator Turbine Blade Annex A4
Agitator Packing Gland Annex A5
Nitrogen Dioxide Graduated Tube Annex A6
Vacuum System Plumbing Annex A7
Vacuum Trap Condensers Annex A8
Setting the Vacuum Control Valve Annex A9
Appendixes
Sample Preparation and Addition Appendix X1
Charging the Liquid Nitrogen Dioxide Appendix X2
Nitrogen Dioxide Precision Needle Valve Appendix X3
Example of an Assembled ROBO Apparatus Appendix X4
Information Package to Aid Setting Up a New Robo Apparatus Appendix X5
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade O
...
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