ASTM D1176-14

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Designation: D1176 − 14
Standard Practice for
Sampling and Preparing Aqueous Solutions of Engine
1
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 3. Significance and Use
1.1 This practice covers information on sampling and pre- 3.1 This practice is used commonly by vehicle service or
laboratory personnel for sampling and preparing aqueous
paring solutions of engine coolants and antirusts (Notes 1 and
2). solutions of engine coolants or antirust for further evaluation
and testing.
1.2 The values stated in SI units are to be regarded as the
3.2 This practice shall be followed when sampling and
standard. The values given in parentheses are approximate
preparing aqueous solutions of products for evaluation in
equivalents given for information only.
ASTM test methods.
1.3 This standard does not purport to address all of the
3.3 Care must be taken to ensure that a representative
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- sample of product is taken.
priate safety and health practices and determine the applica-
3.4 This practice describes several different test methods.
bility of regulatory limitations prior to use.
Themethodstobefollowedshouldbeagreedtobythesupplier
and the customer.
NOTE 1—Antirust as referred to in this practice covers products
intended for use in automotive/light-duty and heavy-duty applications in
4. Sampling Concentrated Liquid Products
which water is used as the cooling medium.
NOTE2—Antirustproductsareavailableinliquidandsolidform.Solids
4.1 When received, the material will preferably be in a
should be handled as outlined in Annex A1.
sealed, marked container.Allow the container to stand at room
temperature (not below 20°C) before attempting to obtain a
2. Referenced Documents
sample. The container and its contents shall be shaken well
2
2.1 ASTM Standards:
before sampling (see Note 3).Any signs of solution separation
D1122 Test Method for Density or Relative Density of
should be noted and appropriate samples obtained by using a
EngineCoolantConcentratesandEngineCoolantsByThe
decanting or pipeting technique. Some samples that contain
Hydrometer
multiple phases may require the use of a separatory funnel to
D1193 Specification for Reagent Water
isolate a particular liquid layer or solids.
D5931 Test Method for Density and Relative Density of
NOTE 3—In the case of larger containers such as those with a nominal
Engine Coolant Concentrates and Aqueous Engine Cool-
volume of 20 or 200 L (5 or 55 gal), the contents should be mixed
ants by Digital Density Meter
thoroughly with a stirrer for at least 5 min to ensure a homogeneous
mixture. The stirrer should be capable of dispersing any separated solids
and supernatant phases without drawing air into the mixture.
1
This practice is under the jurisdiction of ASTM Committee D15 on Engine
4.2 Remove a representative sample by pipeting or siphon-
Coolants and Related Fluids and is the direct responsibility of Subcommittee
ing.
D15.06 on Glassware Performance Tests.
Current edition approved April 1, 2014. Published April 2014. Originally
5. Separation of Multiphase Products
approved in 1951. Last previous edition approved in 2008 as D1176 – 98(2008).
DOI: 10.1520/D1176-14.
5.1 If the product contains separated solids or liquids, place
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
a representative sample obtained as described in Section 4 in a
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
separatory funnel. Stopper the funnel and allow to stand for at
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. least 16 h. Separate the various phases as follows:
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D1176 − 14
5.1.1 Remove settled liquids or solids, if present, by allow- 6.3 Volumetric Procedure (Volume %):
ing them to drain out together with a minimum amount of the 6.3.1 For many applications, sufficient accuracy can be
major liquid phase. obtained by measuring the sample in a graduated cylinder.
5.1.2 Then drain the major liquid phase into a suitable 6.3.1.1 Measure the required volume of engine coolant or
container, taking care not to include an
...