ASTM D5931-13

Standard Test Method for Density and Relative Density of Engine Coolant Concentrates and Aqueous Engine Coolants by Digital Density Meter

SIGNIFICANCE AND USE
5.1 Density is a fundamental physical property that can be used in conjunction with other properties to characterize engine coolant concentrates and aqueous engine coolants.  
5.2 Determination of the density or relative density of these products is necessary for the conversion of measured volumes to volumes at the standard temperature of 20°C (68°F).
SCOPE
1.1 This test method covers the determination of the density or relative density of engine coolant concentrates and aqueous engine coolants.  
1.2 This test method should not be applied to samples so dark in color that the absence of air bubbles in the sample cell cannot be established with certainty.  
1.3 The accepted units of measure for density are grams per milliliter or kilograms per cubic meter.  
1.4 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. For specific hazard statements, see Note 1.

General Information

• Status: Historical
• Publication Date: 30-Apr-2013
• ICS: 17.060 - Measurement of volume, mass, density, viscosity
• ICS: 47.020.20 - Marine engines and propulsion systems
• ICS: 71.100.45 - Refrigerants and antifreezes
• Technical Committee: D15 - Engine Coolants and Related Fluids
• Drafting Committee: D15.03 - Physical Properties

Relations

• Replaces: ASTM D5931-96(2007) - Standard Test Method for Density and Relative Density of Engine Coolant Concentrates and Aqueous Engine Coolants by Digital Density Meter
• Effective Date: 01-May-2013
• Replaced By: ASTM D5931-13(2017) - Standard Test Method for Density and Relative Density of Engine Coolant Concentrates and Aqueous Engine Coolants by Digital Density Meter
• Effective Date: 01-Nov-2017
• 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-May-2013
• Referred By: ASTM D7714-11(2021) - Standard Specification for Glycerin Base Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 01-May-2013
• Referred By: ASTM D7713-18 - Standard Specification for Aqueous Engine Coolant Grade Glycol (53 % by Volume Nominal)
• Effective Date: 01-May-2013
• Referred By: ASTM D7640-16(2021) - Standard Specification for Engine Coolant Grade Glycerin
• Effective Date: 01-May-2013
• Referred By: ASTM D3306-21 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 01-May-2013
• Referred By: ASTM D3585-08(2020) - Standard Specification for ASTM Reference Fluid for Coolant Tests
• Effective Date: 01-May-2013
• Referred By: ASTM D7388-23 - Standard Specification for Engine Coolant Grade 1,3-Propanediol (PDO)
• Effective Date: 01-May-2013
• Referred By: ASTM D7896-19 - Standard Test Method for Thermal Conductivity, Thermal Diffusivity, and Volumetric Heat Capacity of Engine Coolants and Related Fluids by Transient Hot Wire Liquid Thermal Conductivity Method
• Effective Date: 01-May-2013
• 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-May-2013
• Referred By: ASTM D8039-16(2023) - Standard Specification for Heat Transfer Fluids (HTF) for Heating and Air Conditioning (HVAC) Systems
• Effective Date: 01-May-2013
• Referred By: ASTM D7518-20 - Standard Specification for 1,3 Propanediol (PDO) Base Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 01-May-2013
• Referred By: ASTM E1177-23 - Standard Specification for Engine Coolant Grade Glycol
• Effective Date: 01-May-2013
• Referred By: ASTM D8085-17 - Standard Specification for Non-Aqueous Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 01-May-2013

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: D5931 − 13
Standard Test Method for
Density and Relative Density of Engine Coolant
Concentrates and Aqueous Engine Coolants by Digital
1
Density Meter
This standard is issued under the fixed designation D5931; 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.
1. Scope* 4. Summary of Test Method
1.1 Thistestmethodcoversthedeterminationofthedensity 4.1 A small volume of liquid sample is introduced into an
or relative density of engine coolant concentrates and aqueous oscillatingsampletube,andthechangeinoscillatingfrequency
engine coolants. caused by the change in the mass of the tube is used in
conjunction with calibration data to determine the density of
1.2 This test method should not be applied to samples so
the sample.
dark in color that the absence of air bubbles in the sample cell
cannot be established with certainty.
5. Significance and Use
1.3 The accepted units of measure for density are grams per
5.1 Density is a fundamental physical property that can be
milliliter or kilograms per cubic meter.
usedinconjunctionwithotherpropertiestocharacterizeengine
1.4 This standard does not purport to address all of the
coolant concentrates and aqueous engine coolants.
safety concerns, if any, associated with its use. It is the
5.2 Determination of the density or relative density of these
responsibility of the user of this standard to establish appro-
products is necessary for the conversion of measured volumes
priate safety and health practices and determine the applica-
to volumes at the standard temperature of 20°C (68°F).
bility of regulatory limitations prior to use. For specific hazard
statements, see Note 1.
6. Apparatus
6.1 Digital Density Analyzer, consisting of a U-shaped,
2. Referenced Documents
oscillating sample tube and a system for electronic excitation,
2
2.1 ASTM Standards:
frequency counting, and display.The analyzer must accommo-
D1193Specification for Reagent Water
date the accurate measurement of the sample temperature
D4052Test Method for Density, Relative Density, and API
duringmeasurementormustcontrolthesampletemperatureas
Gravity of Liquids by Digital Density Meter
described in 6.2. The instrument must meet the precision
E230Specification and Temperature-Electromotive Force
requirements described in this test method.
(EMF) Tables for Standardized Thermocouples
6.2 Circulating Constant—Temperature Bath, (optional) ca-
pable of maintaining the temperature of the circulating liquid
3. Terminology
constant to 60.05°C in the desired range. Temperature control
3.1 Definitions:
can be maintained as part of the density analyzer instrument
3.1.1 relative density, n—the ratio of the density of a
package.
material at a stated temperature to the density of water at the
6.3 Syringes, at least 2 mL in volume with a tip or an
same stated temperature.
adapter tip that will fit the opening of the oscillating tube.
6.4 Flow-Through or Pressure Adapter, for use as an alter-
native means of introducing the sample into the density
1
This test method is under the jurisdiction ofASTM Committee D15 on Engine
analyzer either by a pump or by vacuum.
Coolants and Related Fluids and is the direct responsibility of Subcommittee
D15.03 on Physical Properties.
6.5 Temperature Measuring Instrument, (Environmentally
Current edition approved May 1, 2013. Published June 2013. Originally
safe thermometer or thermocouple).AnASTM Partial Immer-
approvedin1996.Lastpreviouseditionapprovedin2007asD5931–96(2007)DOI:
10.1520/D5931-13.
sion Thermometer, having a range from -5 to 300°C (20 to
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
580°F) and conforming to the requirements for thermometer
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
2C or 2F, as prescribed in Specification D1193, or some
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. suitable non-mercury containing temperature measuring
*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 ----------------------
D5931 − 13
device, such as a thermocouple, capable of operating in the U-tubemustbepluggedduringmeasurementofthecalibration
sametemperaturerangeandhavingequalorbetteraccuracyas air to prevent ingress of moist air.
summarized in Specification E230. See section 13, Precision 9.2.2 Allow the dry air in the U-tube to come to thermal
and Bias.The data presented in this paragraph is derived using e
...

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: D5931 − 96 (Reapproved 2007) D5931 − 13
Standard Test Method for
Density and Relative Density of Engine Coolant
Concentrates and Aqueous Engine Coolants by Digital
1
Density Meter
This standard is issued under the fixed designation D5931; 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 Scope*
1.1 This test method covers the determination of the density or relative density of engine coolant concentrates and aqueous
engine coolants.
1.2 This test method should not be applied to samples so dark in color that the absence of air bubbles in the sample cell cannot
be established with certainty.
1.3 The accepted units of measure for density are grams per milliliter or kilograms per cubic meter.
1.4 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. For specific hazard statements, see Note 1.
2. Referenced Documents
2
2.1 ASTM Standards:
D1193 Specification for Reagent Water
D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter
E230 Specification and Temperature-Electromotive Force (EMF) Tables for Standardized Thermocouples
3. Terminology
3.1 Definitions:
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. Summary of Test Method
4.1 A small volume of liquid sample is introduced into an oscillating sample tube, and the change in oscillating frequency
caused by the change in the mass of the tube is used in conjunction with calibration data to determine the density of the sample.
5. Significance and Use
5.1 Density is a fundamental physical property that can be used in conjunction with other properties to characterize engine
coolant concentrates and aqueous engine coolants.
5.2 Determination of the density or relative density of these products is necessary for the conversion of measured volumes to
volumes at the standard temperature of 20°C (68°F).
6. Apparatus
6.1 Digital Density Analyzer, consisting of a U-shaped, oscillating sample tube and a system for electronic excitation, frequency
counting, and display. The analyzer must accommodate the accurate measurement of the sample temperature during measurement
or must control the sample temperature as described in 6.2. The instrument must meet the precision requirements described in this
test method.
1
This test method is under the jurisdiction of ASTM Committee D15 on Engine Coolants and Related Fluids and is the direct responsibility of Subcommittee D15.03 on
Physical Properties.
Current edition approved Oct. 1, 2007May 1, 2013. Published October 2007 June 2013. Originally approved in 1996. Last previous edition approved in 20022007 as
D5931–96(2002)D5931–96(2007) DOI: 10.1520/D5931-96R07.10.1520/D5931-13.
2
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’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 ----------------------
D5931 − 13
6.2 Circulating Constant—Temperature Bath, (optional) capable of maintaining the temperature of the circulating liquid
constant to 60.05°C in the desired range. Temperature control can be maintained as part of the density analyzer instrument
package.
6.3 Syringes, at least 2 mL in volume with a tip or an adapter tip that will fit the opening of the oscillating tube.
6.4 Flow-Through or Pressure Adapter, for use as an alternative means of introducing the sample into the density analyzer either
by a pump or by vacuum.
6.5 Thermometer, Temperature Measuring Instrument, calibrated and graduated to 0.1°C, with a thermometer holder that can
be attached to the instrument for setting and observing the test temperature. In calibrating the thermometer, the freeze point should
be(Environmentally safe thermometer or thermo
...