ASTM D2847-22

Standard Practice for Testing Engine Coolants in Car and Light Truck Service

SIGNIFICANCE AND USE
5.1 The data obtained from the use of this practice will provide a basis for the evaluation of coolant performance in passenger car, and light-duty truck service (according to the test chosen). The data obtained may also be used to provide added significance to the data obtained from simulated service and engine dynamometer tests.
SCOPE
1.1 This practice covers an updated procedure for evaluating corrosion protection and performance of an engine coolant in passenger car, light truck service that closely imitates current vehicle and engine manufacturers’ practices.  
Note 1: Coolant evaluation in vehicle service may require considerable time and expense; therefore, the product should be pretested in the laboratory for general acceptability. Typical tests vary from small, closely controlled tests, to large tests where close control is not always practical. The most often referenced protocols for laboratory testing are defined in Specifications D3306, D7714, and D7715.  
1.2 The units quoted in this practice are to be regarded as standard. The values given in parentheses are approximate equivalents for information only.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 7.  
1.4 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.

General Information

• Status: Published
• Publication Date: 31-May-2022
• ICS: 71.100.45 - Refrigerants and antifreezes
• Technical Committee: D15 - Engine Coolants and Related Fluids
• Drafting Committee: D15.10 - Dynamometer and Road Tests

Relations

• Refers: ASTM D1287-11(2020) - Standard Test Method for pH of Engine Coolants and Antirusts
• Effective Date: 01-Jan-2020
• Refers: ASTM D1121-11(2020) - Standard Test Method for Reserve Alkalinity of Engine Coolants and Antirusts
• Effective Date: 01-Jan-2020
• Refers: ASTM D3306-19 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 01-Apr-2019
• Refers: ASTM D6130-11(2018) - Standard Test Method for Determination of Silicon and Other Elements in Engine Coolant by Inductively Coupled Plasma-Atomic Emission Spectroscopy
• Effective Date: 01-Mar-2018
• Refers: ASTM D4725-13 - Standard Terminology for Engine Coolants and Related Fluids
• Effective Date: 01-Oct-2013
• Refers: ASTM D3321-13 - Standard Test Method for Use of the Refractometer for Field Test Determination of the Freezing Point of Aqueous Engine Coolants
• Effective Date: 01-May-2013
• Refers: ASTM D3321-12 - Standard Test Method for Use of the Refractometer for Field Test Determination of the Freezing Point of Aqueous Engine Coolants
• Effective Date: 01-Apr-2012
• Refers: ASTM D7715-11 - Standard Specification for Fully-Formulated Glycerin Base Engine Coolant for Heavy-Duty Engines
• Effective Date: 01-Nov-2011
• Refers: ASTM D6130-11 - Standard Test Method for Determination of Silicon and Other Elements in Engine Coolant by Inductively Coupled Plasma-Atomic Emission Spectroscopy
• Effective Date: 01-Nov-2011
• Refers: ASTM D1287-11 - Standard Test Method for pH of Engine Coolants and Antirusts
• Effective Date: 01-Oct-2011
• Refers: ASTM D4725-11 - Standard Terminology for Engine Coolants
• Effective Date: 01-Jun-2011
• Refers: ASTM D3306-10 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 01-Apr-2010
• Refers: ASTM D2809-09 - Standard Test Method for Cavitation Corrosion and Erosion-Corrosion Characteristics of Aluminum Pumps With Engine Coolants
• Effective Date: 01-Nov-2009
• Refers: ASTM D6130-97a(2009) - Standard Test Method for Determination of Silicon and Other Elements in Engine Coolant by Inductively Coupled Plasma-Atomic Emission Spectroscopy
• Effective Date: 01-Nov-2009
• Refers: ASTM D1287-09 - Standard Test Method for pH of Engine Coolants and Antirusts
• Effective Date: 01-Nov-2009

Overview

ASTM D2847-22 Standard Practice for Testing Engine Coolants in Car and Light Truck Service provides a comprehensive methodology for evaluating the corrosion protection and overall performance of engine coolants when used in passenger cars and light-duty trucks. Developed under the guidance of ASTM International, this standard is widely recognized for its alignment with current practices of both vehicle and engine manufacturers. The practice offers a structured approach for conducting real-world, service-based assessment of coolant formulations, supporting manufacturers, fleet operators, and laboratories with scientifically validated protocols for field testing.

Key Topics

• Corrosion Protection Evaluation: The standard outlines test procedures that assess the coolant’s ability to protect vital engine components (radiators, heater cores, water pumps, hoses, and, for heavy-duty applications, cylinder liners) from corrosion and degradation.
• Field versus Laboratory Testing: While vehicle service testing as described in ASTM D2847-22 is thorough, it is recognized as resource-intensive. Thus, pretesting in laboratory settings using ASTM D3306, D7714, and D7715, among others, is recommended to establish basic product acceptability before proceeding with in-vehicle trials.
• Sampling and Inspection: The practice specifies regular sampling and inspection intervals, requiring the harvesting and examination of components such as radiator tubes, hoses, and water pumps, along with coolant samples for chemical analysis (pH, reserve alkalinity, inhibitor concentration, etc.).
• Reporting Requirements: Detailed documentation is required, including the operational conditions, vehicle and coolant data, inspection results, and observations on corrosion, deposits, or failures within the cooling system.

Applications

• Automotive Coolant Manufacturers: ASTM D2847-22 is crucial for product development and quality assurance. Manufacturers use this standard to verify that new coolant formulations provide sufficient corrosion protection and maintain performance standards throughout typical service intervals.
• OEMs and Fleet Operators: Original Equipment Manufacturers (OEMs) and fleet managers rely on these practices to qualify recommended coolants for their vehicles, ensuring optimal performance and longevity of the cooling system under a variety of operational conditions.
• Testing Laboratories: Independent and in-house laboratories apply ASTM D2847-22 to conduct field testing as part of certification, validation, and comparison of engine coolants, interpreting results to inform purchasing or specification decisions.
• Regulatory and Compliance Auditing: The standard supports compliance with international best practices and can aid in addressing warranty and maintenance claims by providing documented, standardized results on real-world coolant performance.

Related Standards

ASTM D2847-22 references and is often used in conjunction with several other key ASTM standards for engine coolants and related chemicals:

• ASTM D3306: Specification for glycol-based engine coolant for automobiles and light-duty service.
• ASTM D7714 & D7715: Specifications for glycerin-base engine coolants for light-duty and heavy-duty service, respectively.
• ASTM D6210: Specification for fully formulated glycol-based coolant for heavy-duty engines.
• ASTM D1121: Test method for reserve alkalinity in coolants.
• ASTM D1287: Test method for pH of engine coolants.
• ASTM D2809: Test method for corrosion characteristics of aluminum pumps.
• ASTM D3321: Test method for freezing point determination using a refractometer.
• ASTM D4725: Terminology for engine coolants and related fluids.

Practical Value

Adopting ASTM D2847-22 ensures that organizations objectively assess the real-world effectiveness of engine coolants, reducing the risk of costly engine damage due to inadequate corrosion protection. Rigorous application of this standard promotes product reliability, user safety, and regulatory compliance-essential considerations in today’s competitive and safety-conscious automotive industry.

Keywords: engine coolant testing, vehicle coolant performance, coolant corrosion protection, ASTM engine coolant standards, field testing coolants, automotive coolant evaluation, radiator corrosion test, ASTM D2847-22

Standards Content (Sample)

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.
Designation: D2847 − 22
Standard Practice for
Testing Engine Coolants in Car and Light Truck Service
This standard is issued under the fixed designation D2847; 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.
1. Scope Corrosion Characteristics of Aluminum Pumps With En-
gine Coolants
1.1 This practice covers an updated procedure for evaluat-
D3306 Specification for Glycol Base Engine Coolant for
ing corrosion protection and performance of an engine coolant
Automobile and Light-Duty Service
inpassengercar,lighttruckservicethatcloselyimitatescurrent
D3321 Test Method for Use of the Refractometer for Field
vehicle and engine manufacturers’ practices.
Test Determination of the Freezing Point of Aqueous
NOTE 1—Coolant evaluation in vehicle service may require consider-
Engine Coolants
able time and expense; therefore, the product should be pretested in the
D4725 Terminology for Engine Coolants and Related Fluids
laboratory for general acceptability. Typical tests vary from small, closely
D5827 Test Method for Analysis of Engine Coolant for
controlled tests, to large tests where close control is not always practical.
The most often referenced protocols for laboratory testing are defined in Chloride and Other Anions by Ion Chromatography
Specifications D3306, D7714, and D7715.
D6130 Test Method for Determination of Silicon and Other
Elements in Engine Coolant by Inductively Coupled
1.2 The units quoted in this practice are to be regarded as
standard. The values given in parentheses are approximate Plasma-Atomic Emission Spectroscopy
equivalents for information only. D7714 Specification for Glycerin Base Engine Coolant for
Automobile and Light-Duty Service
1.3 This standard does not purport to address all of the
D7715 Specification for Fully-Formulated Glycerin Base
safety concerns, if any, associated with its use. It is the
Engine Coolant for Heavy-Duty Engines
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
3. Terminology
mine the applicability of regulatory limitations prior to use.
Specific precautionary statements are given in Section 7.
3.1 Definitions—Refer to Terminology D4725.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
4. Summary of Practice
ization established in the Decision on Principles for the
4.1 Testcoolantshallbeanewcoolant.Thecoolantistested
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical attherecommendedconcentrationinanaqueoussolutionmade
Barriers to Trade (TBT) Committee. with water that complies with the water recommendation
published in Specification D3306. A minimum of five test
2. Referenced Documents vehicles/engines per coolant are required, ten are
recommended, but this number may be adjusted by agreement
2.1 ASTM Standards:
between customer and supplier. The test vehicles/engines shall
D1121 Test Method for Reserve Alkalinity of Engine Cool-
have been in service less than 3 months, 3000 miles, 5000 km,
ants and Antirusts
or 500 operating hours. The Original Equipment Manufacturer
D1287 TestMethodforpHofEngineCoolantsandAntirusts
(OEM) may require the replacement of the radiator, heater
D2809 Test Method for Cavitation Corrosion and Erosion-
core, cooling system hoses, and water pump prior to starting
the test depending on vehicle mileage or prior coolant in the
system, or both. Customer and supplier may also choose to
This practice is under the jurisdiction of ASTM Committee D15 on Engine
follow requirements published in OEM specifications. The
Coolants and Related Fluids and is the direct responsibility of Subcommittee
cooling system components and coolant are inspected accord-
D15.10 on Dynamometer and Road Tests.
Current edition approved June 1, 2022. Published June 2022. Originally
ing to a prescribed schedule to provide the basis for coolant
approved in 1969. Last previous edition approved in 2015 as D2847 – 15. DOI:
performance evaluation.
10.1520/D2847-22.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.2 A detailed cleaning and conditioning procedure is es-
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
sential to obtain statistically significant and reproducible re-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. sults.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D2847 − 22
4.3 Test vehicle should be using a virgin (not previously include instructions with whom to contact in case coolant
flushed) flux-based controlled atmosphere brazing (CAB) ra- additions are needed or other problems occur.
diator for the duration of the test.
10. Procedure
5. Significance and Use
10.1 Test the coolant being evaluated in a minimum of five
5.1 The data obtained from the use of this practice will
vehicles at the recommended concentration (typically 50 %
provide a basis for the evaluation of coolant performance in
antifreeze and 50 % water as recommended in Specification
passenger car, and light-duty truck service (according to the
D3306 but may be adjusted as agreed between customer and
test chosen). The data obtained may also be used to provide
supplier).
added significance to the data obtained from simulated service
10.2 Vehicle operating conditions may vary considerably in
and engine dynamometer tests.
any test fleet. Record the type of service for each vehicle.
Mileage accumulation rates may vary considerably. Therefore,
6. Apparatus
the recommended inspections in 10.5 may be difficult to
6.1 Test Vehicles/Engines—In selecting vehicles, refer to
schedule. Alternative inspection and sampling schedules may
OEM recommendations. Consideration should be given to the
be developed as agreed between customer and supplier.
current range of cooling system designs and materials.
10.3 All tests to determine the necessity of adding Supple-
Vehicles/engines specified should be reasonably available for
mental Coolant Additives (SCA) or an extender should be
the test, which is to say of current production design and
logged, as well as the addition of the SCAor an extender. Field
materials. A matrix including every possible variable combi-
testing can be done by using Test Strips.
nation of such features is not required.
10.4 Use water that complies with Specification D3306 to
7. Safety Precautions
dilute the antifreeze (field testing can be done with water
7.1 All coolant concentrates and their solutions should be
quality test strips), and blend the test coolant.Additions to the
considered harmful or fatal if swallowed.
coolingsystemduringthetestshouldbetheprescribedmixture
7.2 (Warning—Do not remove pressure caps from systems of 50 % coolant meeting Specification D3306, and volumes
added shall be recorded in the vehicle test log.
when the engine is hot.)
7.3 All installations shall be made with the engine cooled to 10.5 Perform periodic inspections throughout the test in
accordance with minimum requirements as given in Table 1 or
ambient air temperature to avoid burns.
recommendations of OEM or agreed to by customers and
7.4 Disconnect the hot (positive) battery lead to prevent the
supplier. Test strips may be used.
engine from starting to avoid hand injury by drive belts or fan
blades.
11. Inspection
7.5 The engine exhaust should be vented when the engine is
11.1 Harvest three tubes from the top, center, and bottom of
runindoorsatnormaltemperaturestocheckforcoolingsystem
the radiator. Open the tubes by removing one edge and
leaks.
“butterflying” the tube. Inspect and photograph the tubes.
Record observations. As agreed between customer and
8. Sampling
supplier, a more extensive inspection and analysis may be
8.1 Coolant samples may be removed from the test vehicle
performed on the radiator components.
by any convenient means, such as a bulb and pipette. The
11.2 Inspect, rate, and photograph the water pump. Refer to
100 mL (~3.5 oz) coolant samples are kept in polyethylene
Test Method D2809 for inspection and rating guidelines.Water
bottles equipped with screw caps and suitable labels.Areserve
pumps differ in construction and materials, so the exact
supply of pre-mixed coolant is used to replace the coolant
procedures in Test Method D2809 may need to be adjusted as
samples. Coolant added to the system for any reason is
agreed between customer and supplier.
recorded in the test vehicle log.
11.3 Harvest sections from the radiator and heater hoses.
9. Preparation of Apparatus
Open the hoses and spread the tubes to permit interior
9.1 For test vehicles/engines to be so equipped with new or
inspection. Inspect and photograph the hose materials. Record
flux-based CAB radiators, or both, such radiators shall be
observations.Asagreedbetweencustomerandsupplier,amore
installedafteranyenginecleanandflush,andbeforetheengine
extensive inspection and analysis may be performed on the
is filled with the test coolant.
hose components.
9.2 Obtain an initial sample of the coolant for laboratory
11.4 Additional engine inspections may be performed as
analysis. This is the “0” miles sample. Record the odometer
agreed between customer and supplier (heater core/water
reading,date,andtimeofinitialsampling.Recordotherdataas
passages in block/heads, and thermostats/thermostat housing
agreedbetweencustomerandsupplier.FollowOEMormanual
for rust/corrosion or deposits, or both).
instruction, or both, for deaeration to ensure engine is properly
deaerated at start of the field test. 12. Report
...

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: D2847 − 15 D2847 − 22
Standard Practice for
Testing Engine Coolants in Car and Light Truck Service
This standard is issued under the fixed designation D2847; 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.
1. Scope
1.1 This practice covers an updated procedure for evaluating corrosion protection and performance of an engine coolant in
passenger car, light and heavy duty truck service that closely imitates current vehicle and engine manufacturersmanufacturers’
practices.
NOTE 1—Coolant evaluation in vehicle service may require considerable time and expense; therefore, the product should be pretested in the laboratory
for general acceptability. Typical tests vary from small, closely controlled tests, to large tests where close control is not always practical. The most often
referenced protocols for laboratory testing are defined in Specifications D3306, D6210, D7517, D7518, D7714, and D7715.
1.2 The units quoted in this practice are to be regarded as standard. The values given in parentheses are approximate equivalents
for information only.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 7.
1.4 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.
2. Referenced Documents
2.1 ASTM Standards:
D1121 Test Method for Reserve Alkalinity of Engine Coolants and Antirusts
D1287 Test Method for pH of Engine Coolants and Antirusts
D2809 Test Method for Cavitation Corrosion and Erosion-Corrosion Characteristics of Aluminum Pumps With Engine Coolants
D3306 Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
D3321 Test Method for Use of the Refractometer for Field Test Determination of the Freezing Point of Aqueous Engine Coolants
D4725 Terminology for Engine Coolants and Related Fluids
D5827 Test Method for Analysis of Engine Coolant for Chloride and Other Anions by Ion Chromatography
D6130 Test Method for Determination of Silicon and Other Elements in Engine Coolant by Inductively Coupled Plasma-Atomic
Emission Spectroscopy
D6210 Specification for Fully-Formulated Glycol Base Engine Coolant for Heavy-Duty Engines
D7517 Specification for Fully-Formulated 1,3 Propanediol (PDO) Base Engine Coolant for Heavy-Duty Engines
This practice is under the jurisdiction of ASTM Committee D15 on Engine Coolants and Related Fluids and is the direct responsibility of Subcommittee D15.10 on
Dynamometer and Road Tests.
Current edition approved May 1, 2015June 1, 2022. Published June 2015June 2022. Originally approved in 1969. Last previous edition approved in 20142015 as
D2847 – 14.D2847 – 15. DOI: 10.1520/D2847-15.10.1520/D2847-22.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D2847 − 22
D7518 Specification for 1,3 Propanediol (PDO) Base Engine Coolant for Automobile and Light-Duty Service
D7714 Specification for Glycerin Base Engine Coolant for Automobile and Light-Duty Service
D7715 Specification for Fully-Formulated Glycerin Base Engine Coolant for Heavy-Duty Engines
3. Terminology
3.1 Definitions—Refer to Terminology D4725.
4. Summary of Practice
4.1 Test coolant shall be a new coolant. The coolant is tested at the recommended concentration in an aqueous solution made with
water that complies with the water recommendation published in SpecificationsSpecification D3306 and D6210. A minimum of
five test vehiclesvehicles/engines per coolant are required, ten are recommended, but this number may be adjusted by agreement
between customer and supplier. The test vehiclesvehicles/engines shall have been in service less than 3 months, 3000 miles, 5000
km, or 500 operating hours. Alternate specific requirements may always be agreed between customer and supplier. The Original
Equipment Manufacturer (OEM) may require the replacement of the radiator, heater core, cooling system hoses, and water pump
prior to starting the test depending on vehicle mileage or prior coolant in the system, or both. Customer and supplier may also
choose to follow requirements published in Original Engine Manufacturer (OEM) OEM specifications. The cooling system
components and coolant are inspected according to a prescribed schedule to provide the basis for coolant performance evaluation.
4.2 A detailed cleaning and conditioning procedure is essential to obtain statistically significant and reproducible results.
4.3 Test vehicle should be using a virgin (not previously flushed) flux-based controlled atmosphere brazing (CAB) radiator for the
duration of the test.
5. Significance and Use
5.1 The data obtained from the use of this practice will provide a basis for the evaluation of coolant performance in passenger car.
light and heavy duty car, and light-duty truck service (according to the test vehicles chosen). The data obtained may also be used
to provide added significance to the data obtained from simulated service and engine dynamometer tests.
6. Apparatus
6.1 Test Vehicles—Vehicles/Engines—In selecting vehicles, refer to OEM recommendations. Consideration should be given to the
current range of cooling system designs and materials. EnginesVehicles/engines specified should be reasonably available for the
test, which is to say of current production design and materials. A matrix including every possible variable combination of such
features is not required.
7. Safety Precautions
7.1 All coolant concentrates and their solutions should be considered harmful or fatal if swallowed.
7.2 (Warning—Do not remove pressure caps from systems when the engine is hot.)
7.3 All installations shall be made with the engine cooled to ambient air temperature to avoid burns.
7.4 Disconnect the hot (positive) battery lead to prevent the engine from starting to avoid hand injury by drive belts or fan blades.
7.5 The engine exhaust should be vented when the engine is run indoors at normal temperatures to check for cooling system leaks.
8. Sampling
8.1 Coolant samples may be removed from the test vehicle by any convenient means, such as a bulb and pipette. The
100-mL100 mL (~3.5 oz) coolant samples are kept in polyethylene bottles equipped with screw caps and suitable labels. A reserve
supply of pre-mixed coolant is used to replace the coolant samples. Coolant added to the system for any reason is recorded in the
test vehicle log.
D2847 − 22
9. Preparation of Apparatus
9.1 For test vehicles/engines to be so equipped with new or flux-based CAB radiators, or both, such radiators shall be installed
after any engine clean and flush, and before the engine is filled with the test coolant.
9.2 Obtain an initial sample of the coolant for laboratory analysis. This is the “0” miles sample. Record the odometer reading, date,
and time of initial sampling. Record other data as agreed between customer and supplier. Follow OEM or manual instruction, or
both, for deaeration to ensure engine is properly deaerated at start of the field test.
9.3 Label the radiator and expansion reservoir fill caps conspicuously to show a coolant test is being conducted, and include
instructions with whom to contact in case coolant additions are needed or other problems occur.
10. Procedure
10.1 Test the coolant being evaluated in a minimum of five vehicles at the recommended concentration (typically 50 % antifreeze
and 50 % water as recommended in SpecificationsSpecification D3306, D6210but may be adjusted as agreed between customer
and supplier).
10.2 Vehicle operating conditions may vary considerably in any test fleet. Record the type of service for each vehicle. Mileage
accumulation rates may vary considerably. Therefore, the recommended inspections in 10.5 may be difficult to schedule.
Alternative inspection and sampling schedules may be developed as agreed between customer and supplier.
10.3 All tests to determine the necessity of adding SCA Supplemental Coolant Additives (SCA) or an extender should be logged,
as well as the addition of the SCA or an extender. Field testing can be done by using Test Strips.
10.4 Use water that complies with SpecificationsSpecification D3306, D6210to dilute the antifreeze (field testing can be done with
water quality test strips), and blend the test coolant. Additions to the cooling system during the test should be the prescribed
mixture of 50 % coolant meeting SpecificationsSpecification D3306, D6210, and volumes added shall be recorded in the vehicle
test log.
10.5 Perform periodic inspections throughout the test per in accordance with minimum requirements as given in Table 1 or
recommendations of OEM or agreed to by customers and supplier. Test strips may be used.
11. Inspection
11.1 Harvest three tubes from the top, center, and bottom of the radiator. Open the tubes by removing one edge and “butterflying”
the tube. Inspect and photograph the tubes. Record observations. As agreed between customer and supplier, a more extensive
inspection and analysis may be performed on the radiator components.
11.2 Inspect, rate, and photograph the water pump. Refer to Test Method D2809 for inspection and rating guidelines. Water pumps
differ in construction and materials, so the exact procedures in Test Method D2809 may need to be adjusted as agreed between
customer and supplier.
11.3 Harvest sections from the radiator and heater hoses. Open the hoses and spread the tubes to permit interior inspection. Inspect
and photograph the hose materials. Record observations. As agreed between customer and supplier, a more extensive inspection
and analysis may be performed on the hose components.
11.4 In heavy duty engines equipped with wet sleeve cylinder liners, the liners must be inspected for pitting corrosion, - Rated
- Pass/Fail per agreement of customer and supplier.
11.4 Additional engine inspections may be performed as agreed between customer and supplier (water (heater core/water passages
in block/heads, and thermostats/thermostat housing for rust/corrosion or deposits, or both).
...