• There are no items in your cart

ASTM D 7468 : 2020

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Standard Test Method for Cummins ISM Test

Available format(s)

Hardcopy , PDF

Superseded date

02-08-2021

Superseded by

ASTM D 7468 : 2021

Language(s)

English

Published date

13-07-2020

€96.91
Excluding VAT

Committee
D 02
DocumentType
Test Method
Pages
37
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

1.1The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits, and oil filter plugging in an EGR environment. This test method is commonly referred to as the Cummins ISM Test.2

1.2The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.2.1Exception—The only exception is where there is no direct SI equivalent such as screw threads, national pipe threads/diameters, tubing sizes, or where there is a sole source of supply equipment specification.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See Annex A1 for general safety precautions.

1.4Table of Contents:

Section

Scope

1

Referenced Documents

2

Terminology

3

Summary of Test Method

4

Significance and Use

5

Apparatus

6

 Test Engine Configuration

6.1

  Test Engine

6.1.1

  Oil Heat Exchanger, Adapter Blocks, Block Off Plate

6.1.2

  Oil Filter Head Modification

6.1.3

  Oil Pan Modification

6.1.4

  Engine Control Module (ECM)

6.1.5

  Engine Position Sensor

6.1.6

  Intake Manifold Temperature Sensor

6.1.7

  Barometric Pressure Sensor

6.1.8

  Turbocharger Controller

6.1.9

  Power Supply Voltage

6.1.10

  Air Compressor and Fuel Pump

6.1.11

  Engine Block Preparation

6.1.12

 Test Stand Configuration

6.2

  Engine Mounting

6.2.1

  Intake Air System

6.2.2

  Aftercooler

6.2.3

  Exhaust System

6.2.4

  Exhaust Gas Recirculation System

6.2.5

  Fuel System

6.2.6

  Coolant System

6.2.7

  Pressurized Oil Fill System

6.2.8

  External Oil System

6.2.9

  Crankcase Aspiration

6.2.10

  Blowby Rate

6.2.11

 System Time Responses

6.3

 Oil Sample Containers

6.4

 Mass Balance

6.5

Engine and Cleaning Fluids

7

 Test Oil

7.1

 Test Fuel

7.2

 Engine Coolant

7.3

 Pentane

7.4

 Solvent

7.5

Preparation of Apparatus

8

 Cleaning of Parts

8.1

  General

8.1.1

  Engine Block

8.1.2

  Cylinder Head

8.1.3

  Rocker Cover and Oil Pan

8.1.4

  External Oil System

8.1.5

  Crosshead Cleaning and Measurement

8.1.6

  Rod Bearing Cleaning and Measurement

8.1.7

  Ring Cleaning and Measurement

8.1.8

  Injector Adjusting Screw Cleaning and Measurement

8.1.9

 Engine Assembly

8.2

  General

8.2.1

  Parts Reuse and Replacement

8.2.2

  Build-Up Oil

8.2.3

  Coolant Thermostat

8.2.4

  Oil Thermostat

8.2.5

  Fuel Injectors

8.2.6

  New Parts

8.2.7

 Operational Measurements

8.3

  Units and Formats

8.3.1

  Instrumentation Calibration

8.3.2

  Temperatures

8.3.3

  Pressures

8.3.4

  Flow Rates

8.3.5

  Intake and Exhaust CO2 Measurement

8.3.6

Engine/Stand Calibration and Non-Reference Oil Tests

9

 General

9.1

 New Test Stand

9.2

  New Test Stand Calibration

9.2.1

 Stand Calibration Period

9.3

 Stand Modification and Calibration Status

9.4

 Test Numbering System

9.5

  General

9.5.1

  Reference Oil Tests

9.5.2

  Non-Reference Oil Tests

9.5.3

 Reference Oil Test Acceptance

9.6

 Reference Oil Accountability

9.7

 Last Start Date

9.8

 Donated Reference Oil Test Programs

9.9

 Adjustments to Reference Oil Calibration Periods

9.10

  Procedural Deviations

9.10.1

  Parts and Fuel Shortages

9.10.2

  Reference Oil Test Data Flow

9.10.3

  Special Use of the Reference Oil Calibration System

9.10.4

Test Procedure

10

 Engine Installation and Stand Connections

10.1

 Coolant System Fill

10.2

 Oil Fill for Break-in

10.3

  Engine Build Committed

10.3.3

 Fuel Samples

10.4

 Engine Warm-up

10.5

  Shutdown During Warm-up

10.5.1

 Engine Break-in

10.6

 Shutdown and Maintenance

10.7

  Normal Shutdown

10.7.1

  Emergency Shutdown

10.7.2

  Maintenance

10.7.3

  Downtime

10.7.4

 200-h Test Procedure

10.8

  Oil Fill for Test

10.8.2

  Operating Conditions

10.8.4

  Injection Timing Change

10.8.5

  Mass % Soot Validity

10.8.6

  Test Timer

10.8.7

  Operational Data Acquisition

10.8.8

  Oil Sampling

10.8.9

  Oil Addition

10.8.10

 End of Test (EOT)

10.9

  Engine Disassembly

10.9.3

Calculations, Ratings and Test Validity

11

 Crosshead Mass Loss

11.1

  Crosshead Mass Loss Correction Factor

11.1.7.1

 Injector Adjusting Screw Mass Loss

11.2

  Injector Adjusting Screw Correction Factor

11.2.5

 Ring Mass Loss

11.3

 Sludge Ratings

11.4

 Oil Filter Plugging

11.5

 Oil Analyses

11.6

 Oil Consumption

11.7

 Fuel Analyses

11.8

  Additional Analysis

11.8.1

 Assessment of Operational Validity

11.9

 Assessment of Test Interpretability

11.10

Test Report

12

 Report Forms

12.1

 Reference Oil Test

12.2

 Electronic transmission of Test Results

12.2.1

Precision and Bias

13

 Precision

13.1

  Intermediate Precision Conditions

13.1.1

  Reproducibility Conditions

13.1.2

 Bias

13.2

Keywords

14

Annexes

Safety Precautions

Annex A1

Intake Air Aftercooler

Annex A2

Engine Build Parts Kit

Annex A3

Sensor Locations, Special Hardware, and Engine Block Modifications

Annex A4

External Oil System

Annex A5

Cummins Service Publications

Annex A6

Specified Units and Formats

Annex A7

Report Forms and Data Dictionary

Annex A8

Sludge Rating Worksheets

Annex A9

Oil Analyses

Annex A10

Determination of Operational Validity

Annex A11

Exhaust CO2 Sampling Probe

Annex A12

ISM Merit Rating Calculation

Annex A13

Appendix

Typical System Configurations

Appendix X1

1.5This 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.

ASTM D 4485 : 2020 Standard Specification for Performance of Active API Service Category Engine Oils

ASTM E 29 : 2002 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ASTM E 178 : 2016 : REV A Standard Practice for Dealing With Outlying Observations
ASTM D 4175 : 2001 : EDT 1 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
ASTM D 2500 : 1999 Standard Test Method for Cloud Point of Petroleum Products
ASTM D 4175 : 2002 Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
ASTM D 93 : 1990 : EDT 1 Standard Test Methods for Flash Point by Pensky-Martens Closed Tester
ASTM D 445 : 1988 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and the Calculation of Dynamic Viscosity)
ASTM E 178 : 2021 Standard Practice for Dealing With Outlying Observations
ASTM D 4294 : 2008 Standard Test Method for Sulfur in Petroleum and Petroleum Products by Energy Dispersive X-ray Fluorescence Spectrometry
ASTM D 4739 : 1996 Standard Test Method for Base Number Determination by Potentiometric Titration
ASTM E 178 : 2000 Standard Practice for Dealing With Outlying Observations
ASTM D 664 : 1995 Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
ASTM E 178 : 1994 Standard Practice for Dealing With Outlying Observations
ASTM D 445 : 2019 : REV A Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
ASTM D 4052 : 1996 Standard Test Method for Density and Relative Density of Liquids by Digital Density Meter
ASTM D 93 : 2000 Standard Test Methods for Flash-Point by Pensky-Martens Closed Cup Tester
ASTM D 445 : 2001 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (the Calculation of Dynamic Viscosity)
ASTM D 445 : 2021 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
ASTM D 93 : 1985 Standard Test Method for Flash Point by Pensky-Martens Closed Tester
ASTM D 93 : 1997 Standard Test Methods for Flash-Point by Pensky-Martens Closed Cup Tester
ASTM D 1319 : 2002 Standard Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent Indicator Adsorption

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.