ASTM D1982-13(2017)
(Test Method)Standard Test Method for Titer of Fatty Acids
Standard Test Method for Titer of Fatty Acids
SIGNIFICANCE AND USE
3.1 Saturated fatty acids solidify at a higher temperature than unsaturated fatty acids. This test method provides a means of measuring the solidification temperature of a sample containing both unsaturated and saturated fatty acids by cooling the specimen and measuring the temperature at which solidification occurs.
3.2 Samples containing higher levels of saturated acids will have a higher titer (solidification temperature) than those with lower levels of saturated acids.
3.3 Water present in the sample will raise the titer, so provisions are made in the test method to remove traces of moisture.
SCOPE
1.1 This test method covers the determination of the solidification (titer) point of fatty acids and is applicable to all fatty acids.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.
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.
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Designation: D1982 − 13 (Reapproved 2017)
Standard Test Method for
Titer of Fatty Acids
This standard is issued under the fixed designation D1982; 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 3.2 Samples containing higher levels of saturated acids will
have a higher titer (solidification temperature) than those with
1.1 This test method covers the determination of the solidi-
lower levels of saturated acids.
fication (titer) point of fatty acids and is applicable to all fatty
acids.
3.3 Water present in the sample will raise the titer, so
provisions are made in the test method to remove traces of
1.2 The values stated in SI units are to be regarded as
moisture.
standard. No other units of measurement are included in this
standard.
4. Apparatus
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 4.1 Beaker, Griffin low-form, 2-L capacity.
responsibility of the user of this standard to establish appro-
4.2 Bottle, wide-mouth, 450-mL capacity, 190-mm height,
priate safety, health, and environmental practices and deter-
inside diameter of neck 40 mm.
mine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accor- 4.3 Test Tubes, 100 mm in length, 25 mm in diameter, with
dance with internationally recognized principles on standard-
or without rim. These tubes may have an etched mark
ization established in the Decision on Principles for the extending around the tube at a distance of 57 mm from the
Development of International Standards, Guides and Recom-
bottom to show the height to which the tube is to be filled.
mendations issued by the World Trade Organization Technical
4.4 Stirrer,2to3mminoutsidediameter,withoneendbent
Barriers to Trade (TBT) Committee.
in the form of a loop 20 mm in outside diameter. Glass or
stainless steel wire may be used.The upper end can be formed
2. Referenced Documents
toaccommodatehandstirringortobeattachedtoamechanical
2.1 ASTM Standards:
stirrer.
E1Specification for ASTM Liquid-in-Glass Thermometers
4.5 Laboratory Thermometer, having a range from 0 to
2.2 AOCS Standard:
150°C.
Specification H6-40
4.6 Titer Test Thermometer—An ASTM Titer Test Ther-
3. Significance and Use
mometer having a range from −2 to +68°C and conforming to
3.1 Saturated fatty acids solidify at a higher temperature
the requirements forThermometer 36C as prescribed in Speci-
thanunsaturatedfattyacids.Thistestmethodprovidesameans
fication E1. Thermometric devices such as RTDs, thermistors
of measuring the solidification temperature of a sample con-
andliquid-in-glassthermometersofequalorbetteraccuracyin
taining both unsaturated and saturated fatty acids by cooling
the specified temperature range, may be used.
the specimen and measuring the temperature at which solidi-
NOTE 1—Thermometers conforming to the requirements for theAOCS
fication occurs.
Titer Thermometer (AOCS Specification H6-40) meet these require-
ments.
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
5. Procedure
Subcommittee D01.34 on Pine Chemicals and Hydrocarbon Resins.
Current edition approved Dec. 1, 2017. Published December 2017. Originally
5.1 Heatthesampleonahotplateto130°Ctoremovetraces
approved in
...
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: D1982 − 13 D1982 − 13 (Reapproved 2017)
Standard Test Method for
Titer of Fatty Acids
This standard is issued under the fixed designation D1982; 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 test method covers the determination of the solidification (titer) point of fatty acids and is applicable to all fatty acids.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.
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:
E1 Specification for ASTM Liquid-in-Glass Thermometers
2.2 AOCS Standard:
Specification H 6-40
3. Significance and Use
3.1 Saturated fatty acids solidify at a higher temperature than unsaturated fatty acids. This test method provides a means of
measuring the solidification temperature of a sample containing both unsaturated and saturated fatty acids by cooling the specimen
and measuring the temperature at which solidification occurs.
3.2 Samples containing higher levels of saturated acids will have a higher titer (solidification temperature) than those with lower
levels of saturated acids.
3.3 Water present in the sample will raise the titer, so provisions are made in the test method to remove traces of moisture.
4. Apparatus
4.1 Beaker, Griffin low-form, 2-L capacity.
4.2 Bottle, wide-mouth, 450-mL capacity, 190-mm height, inside diameter of neck 40 mm.
4.3 Test Tubes, 100 mm in length, 25 mm in diameter, with or without rim. These tubes may have an etched mark extending
around the tube at a distance of 57 mm from the bottom to show the height to which the tube is to be filled.
4.4 Stirrer, 2 to 3 mm in outside diameter, with one end bent in the form of a loop 20 mm in outside diameter. Glass or stainless
steel wire may be used. The upper end can be formed to accommodate hand stirring or to be attached to a mechanical stirrer.
4.5 Laboratory Thermometer, having a range from 0 to 150°C.
4.6 Titer Test Thermometer—An ASTM Titer Test Thermometer having a range from −2 to +68°C and conforming to the
requirements for Thermometer 36C as prescribed in Specification E1. Thermometric devices such as RTDs, thermistors and
liquid-in-glass thermometers of equal or better accuracy in the specified temperature range, may be used.
This test method is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.34 on Pine Chemicals and Hydrocarbon Resins.
Current edition approved Nov. 1, 2013Dec. 1, 2017. Published December 2013December 2017. Originally approved in 1961. Last previous edition approved in 20092013
as D1982 – 85 (2009).D1982 – 13. DOI: 10.
...
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