ASTM D1122-08

Standard Test Method for Density or Relative Density of Engine Coolant Concentrates and Engine Coolants By The Hydrometer

SIGNIFICANCE AND USE
The relative density of an engine coolant may be used to determine the approximate percent glycol, freezing point, and boiling point, provided the glycol type is known.
The relative density of an engine coolant concentrate can be used as a production control test.
SCOPE
1.1 This test method covers the determination of the relative density of engine coolant concentrates and engine coolants.  
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Mar-2008
• ICS: 71.100.45 - Refrigerants and antifreezes
• Technical Committee: D15 - Engine Coolants and Related Fluids
• Drafting Committee: D15.03 - Physical Properties

Relations

• Replaces: ASTM D1122-97a(2002) - Standard Test Method for Density or Relative Density of Engine Coolant Concentrates and Engine Coolants By The Hydrometer
• Effective Date: 01-Apr-2008
• Replaced By: ASTM D1122-13 - Standard Test Method for Density or Relative Density of Engine Coolant Concentrates and Engine Coolants By The Hydrometer
• Effective Date: 01-May-2013
• Referred By: ASTM D1176-14(2019) - Standard Practice for Sampling and Preparing Aqueous Solutions of Engine Coolants or Antirusts for Testing Purposes
• Effective Date: 01-Apr-2008
• Referred By: ASTM D7388-23 - Standard Specification for Engine Coolant Grade 1,3-Propanediol (PDO)
• Effective Date: 01-Apr-2008
• Referred By: ASTM D3585-08(2020) - Standard Specification for ASTM Reference Fluid for Coolant Tests
• Effective Date: 01-Apr-2008
• Referred By: ASTM D8085-17 - Standard Specification for Non-Aqueous Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 01-Apr-2008
• Referred By: ASTM D4337-89(2017) - Standard Test Methods for Analysis of Linear Detergent Alkylates
• Effective Date: 01-Apr-2008
• Referred By: ASTM D8039-16(2023) - Standard Specification for Heat Transfer Fluids (HTF) for Heating and Air Conditioning (HVAC) Systems
• Effective Date: 01-Apr-2008
• Referred By: ASTM D7714-11(2021) - Standard Specification for Glycerin Base Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 01-Apr-2008
• Referred By: ASTM D7713-18 - Standard Specification for Aqueous Engine Coolant Grade Glycol (53 % by Volume Nominal)
• Effective Date: 01-Apr-2008
• Referred By: ASTM D4985-10(2023) - Standard Specification for Low Silicate Ethylene Glycol Base Engine Coolant for Heavy Duty Engines Requiring a Pre-Charge of Supplemental Coolant Additive (SCA)
• Effective Date: 01-Apr-2008
• Referred By: ASTM D3306-21 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 01-Apr-2008
• Referred By: ASTM D7640-16(2021) - Standard Specification for Engine Coolant Grade Glycerin
• Effective Date: 01-Apr-2008
• Referred By: ASTM E1177-23 - Standard Specification for Engine Coolant Grade Glycol
• Effective Date: 01-Apr-2008
• Referred By: ASTM D7518-20 - Standard Specification for 1,3 Propanediol (PDO) Base Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 01-Apr-2008

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D1122 − 08
StandardTest Method for
Density or Relative Density of Engine Coolant Concentrates
1
and Engine Coolants By The Hydrometer
This standard is issued under the fixed designation D1122; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 5. Apparatus
1.1 Thistestmethodcoversthedeterminationoftherelative 5.1 Hydrometers—Hydrometers shall be of glass, graduated
density of engine coolant concentrates and engine coolants. in specific gravity range as listed in Table 1, and shall conform
to Specification E100.
1.2 The values stated in SI units are to be regarded as
standard. The values given in parentheses are for information 5.2 Hydrometer Cylinder—The hydrometer cylinder in
only. which the sample for the relative density test is confined shall
be made of clear glass and shall be cylindrical in shape. For
1.3 This standard does not purport to address all of the
convenience in pouring, it may have a lip on the rim. The
safety concerns, if any, associated with its use. It is the
inside diameter of the cylinder shall be at least 25.4 mm (1.0
responsibility of the user of this standard to establish appro-
in.) greater than the outside diameter of the hydrometer. The
priate safety and health practices and determine the applica-
height of the cylinder shall be such that the length of the
bility of regulatory limitations prior to use.
columnofsampleitcontainsisgreaterbyatleast25.4mm(1.0
2. Referenced Documents
in.) than the portion of the hydrometer which is immersed
2
beneath the surface of the sample after a state of equilibrium
2.1 ASTM Standards:
has been reached.
D1176Practice for Sampling and Preparing Aqueous Solu-
tionsofEngineCoolantsorAntirustsforTestingPurposes
5.3 Thermometer—An ASTM Gravity Thermometer 12C,
E1Specification for ASTM Liquid-in-Glass Thermometers
havingarangefrom−20to120°C(or12Fhavingarangefrom
E100Specification for ASTM Hydrometers
−5 to 215°F) and conforming to Specification E1, or some
other suitable non-mercury containing temperature measuring
3. Terminology
device, such as a thermocouple, capable of operating in the
3.1 Definitions: same temperature range and having equal or better accuracy.
3.1.1 relative density, n—the ratio of the density of a
5.4 Water Bath—A water bath capable of maintaining a
material at a stated temperature to the density of water at the
sample temperature of 15.5 6 0.3°C (60 6 0.5°F) during the
same stated temperature.
test.
4. Significance and Use
6. Sampling
4.1 Therelativedensityofanenginecoolantmaybeusedto
6.1 Sample the coolant in accordance with Test Method
determine the approximate percent glycol, freezing point, and
D1176, except as specified in this test method.
boiling point, provided the glycol type is known.
4.2 The relative density of an engine coolant concentrate
7. Procedure
can be used as a production control test.
7.1 If the coolant has a small amount of separated upper
layer, remove it before determining the relative density of the
1
This test method is under the jurisdiction ofASTM Committee D15 on Engine
lower layer. To separate, pour the sample into a 500-mL
Coolants and is the direct responsibility of Subcommittee D15.03 on Physical
separatory funnel, allow to stand for3hat room temperature
Properties.
Current edition approved April 1, 2008. Published April 2008. Originally but not below 20°C (68°F), and then draw off the lower layer.
approved in 1950. Last previous edition approved in 2002 as D1122–97a(2002).
7.2 If the original coolant is homogeneous, no separation
DOI: 10.1520/D1122-08.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or will be required.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
7.3 Cool the homogeneous sample or the separated lower
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. layer sample to about 14°C (57°F). Pour the sample into the
*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 ----------------------
D1122 − 08
TABLE 1 Available Hydrometer Sets
Range
ASTM Hydrometer No. Type
Total Each Hydrometer
111H to 117H for general use in heavy liquids 1.000 to 1.350 0.050
clean, dry hydrometer cylinder without splashing, so as to factor for the hydrometer used by observing the height above
reducetoaminimumtheformationofairbubbles(seeNote1). the main
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:D1122–97a (Reapproved 2002) Designation:D1122–08
Standard Test Method for
Density or Relative Density of Engine Coolant Concentrates
1
and Engine Coolants By The Hydrometer
This standard is issued under the fixed designation D1122; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
1.1 This test method covers the determination of the relative density of engine coolant concentrates and engine coolants.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D1176 Practice for Sampling and Preparing Aqueous Solutions of Engine Coolants or Antirusts for Testing Purposes
E1 Specification for ASTM Liquid-in-Glass Thermometers
E100 Specification for ASTM Hydrometers
3. Terminology
3.1 Definition:
3.1.1 relative density, n—the ratio of the density of a material at a stated temperature to the density of water at the same stated
temperature.
4. Significance and Use
4.1 The relative density of an engine coolant may be used to determine the approximate percent glycol, freezing point, and
boiling point, provided the glycol type is known.
4.2 The relative density of an engine coolant concentrate can be used as a production control test.
5. Apparatus
5.1 Hydrometers— Hydrometers shall be of glass, graduated in specific gravity range as listed in Table 1, and shall conform
to Specification E100.
5.2 Hydrometer Cylinder—The hydrometer cylinder in which the sample for the relative density test is confined shall be made
of clear glass and shall be cylindrical in shape. For convenience in pouring, it may have a lip on the rim. The inside diameter of
thecylindershallbeatleast25.4mm(1.0in.)greaterthantheoutsidediameterofthehydrometer.Theheightofthecylindershall
besuchthatthelengthofthecolumnofsampleitcontainsisgreaterbyatleast25.4mm(1.0in.)thantheportionofthehydrometer
which is immersed beneath the surface of the sample after a state of equilibrium has been reached.
5.3 Thermometer—An ASTM Gravity Thermometer 12C, having a range from−20 to+120°C (or 12F having a range from−5
to+215°F) and conforming to Specification E1. —AnASTM Gravity Thermometer 12C, having a range from −20 to 120°C (or
12F having a range from −5 to 215°F) and conforming to Specification E1, or some other suitable non-mercury containing
temperature measuring device, such as a thermocouple, capable of operating in the same temperature range and having equal or
better accuracy.
5.4 Water Bath—A water bath capable of maintaining a sample temperature of 15.5 6 0.3°C (60 6 0.5°F) during the test.
1
This test method is under the jurisdiction ofASTM Committee D15 on Engine Coolants and is the direct responsibility of Subcommittee D15.03 on Physical Properties.
Current edition approved Oct 10, 1997. Published June 1998. Originally published as D1122–50. Last previous edition D1122–97.
Current edition approved April 1, 2008. Published April 2008. Originally approved in 1950. Last previous edition approved in 2002 as D1122–97a(2002).
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,[e-mail] Annual Book of ASTM Standards
, Vol 15.05.volume information, refer to the standard’s Document Summary page on the ASTM website.
*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 ----------------------
D1122–08
TABLE 1 Available Hydrometer Sets
Range
ASTM Hydrometer No. Type
Total Each Hydrometer
111H to 117H for general use in heavy liquids 1.000 to 1.350 0.050
6. Sampling
6.1 Sample the coolant in accordance with Test Method D1176, except as specified in this test method.
7. Procedure
7.1 If the coolant has a small amount of separated upper layer, remove it before determining the relative density of
...