ASTM D1176-14(2019)

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: D1176 − 14 (Reapproved 2019)
Standard Practice for
Sampling and Preparing Aqueous Solutions of Engine
Coolants or Antirusts for Testing Purposes
This standard is issued under the fixed designation D1176; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope D5931 Test Method for Density and Relative Density of
Engine Coolant Concentrates and Aqueous Engine Cool-
1.1 This practice covers information on sampling and pre-
ants by Digital Density Meter
paring solutions of engine coolants and antirusts (Notes 1 and
2).
3. Significance and Use
1.2 The values stated in SI units are to be regarded as
3.1 This practice is used commonly by vehicle service or
standard. The values given in parentheses after SI units are
laboratory personnel for sampling and preparing aqueous
provided for information only and are not considered standard.
solutions of engine coolants or antirust for further evaluation
1.3 This standard does not purport to address all of the
and testing.
safety concerns, if any, associated with its use. It is the
3.2 This practice shall be followed when sampling and
responsibility of the user of this standard to establish appro-
preparing aqueous solutions of products for evaluation in
priate safety, health, and environmental practices and deter-
ASTM test methods.
mine the applicability of regulatory limitations prior to use.
3.3 Care must be taken to ensure that a representative
NOTE 1—Antirust as referred to in this practice covers products
intended for use in automotive/light-duty and heavy-duty applications in sample of product is taken.
which water is used as the cooling medium.
3.4 This practice describes several different test methods.
NOTE2—Antirustproductsareavailableinliquidandsolidform.Solids
Themethodstobefollowedshouldbeagreedtobythesupplier
should be handled as outlined in Annex A1.
and the customer.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
4. Sampling Concentrated Liquid Products
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
4.1 When received, the material will preferably be in a
mendations issued by the World Trade Organization Technical
sealed, marked container.Allow the container to stand at room
Barriers to Trade (TBT) Committee.
temperature (not below 20 °C) before attempting to obtain a
sample. The container and its contents shall be shaken well
2. Referenced Documents
before sampling (see Note 3).Any signs of solution separation
2.1 ASTM Standards:
should be noted and appropriate samples obtained by using a
D1122 Test Method for Density or Relative Density of
decanting or pipeting technique. Some samples that contain
EngineCoolantConcentratesandEngineCoolantsByThe
multiple phases may require the use of a separatory funnel to
Hydrometer
isolate a particular liquid layer or solids.
D1193 Specification for Reagent Water
NOTE 3—In the case of larger containers such as those with a nominal
volume of 20 or 200 L (5 or 55 gal), the contents should be mixed
thoroughly with a stirrer for at least 5 min to ensure a homogeneous
mixture. The stirrer should be capable of dispersing any separated solids
This practice is under the jurisdiction of ASTM Committee D15 on Engine
and supernatant phases without drawing air into the mixture.
Coolants and Related Fluids and is the direct responsibility of Subcommittee
D15.06 on Glassware Performance Tests.
4.2 Remove a representative sample by pipeting or siphon-
Current edition approved Oct. 1, 2019. Published October 2019. Originally
ing.
approved in 1951. Last previous edition approved in 2014 as D1176–14. DOI:
10.1520/D1176–14R19.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 5. Separation of Multiphase Products
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1 If the product contains separated solids or liquids, place
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. a representative sample obtained as described in Section 4 in a
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D1176 − 14 (2019)
separatory funnel. Stopper the funnel and allow to stand for at 6.3 Volumetric Procedure (Volume %):
least 16 h. Separate the various phases as follows: 6.3.1 For many applications, sufficient accuracy can be
5.1.1 Remove settled liquids or solids, if present, by allow-
obtained by measuring the sample in a graduated cylinder.
ing them to drain out together with a minimum amount of the
6.3.1.1 Measure the required volume of engine coolant or
major liquid phase.
antirust into a graduated cylinder.
5.1.2 Then drain the major liquid phase into a suitable
6.3.1.2 Add water of the type to be used for the test to just
container, taking care not to include any supernatant liquid
below the final volume. Mix the solution well. Add enough
phase.
water of the type to be used for the test to bring the contents of
5.1.3 Finally, drain the supernatant phase into a separate
the graduated cylinder to the final volume and mix well again.
container.
The test concentration shall be expressed as the ratio of the
5.1.4 If the
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