ASTM D5565-95(2006)

Standard Test Method for Determination of the Solidification Point of Fatty Acids Contained in Animal, Marine, and Vegetable Fats and Oils

SIGNIFICANCE AND USE
This test method is intended to cover determination of the solidification point of fatty acids contained in animal, marine, and vegetable fats and oils used in the softening and stuffing of leather, as well as those used in the manufacture of products for such purpose.
SCOPE
1.1 This test method covers determination of the solidification point of fatty acids contained in animal, marine, and vegetable fats and oils.
1.2 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use. See 6.2 and 6.7 for additional information.

General Information

• Status: Historical
• Publication Date: 31-Mar-2006
• ICS: 67.200.10 - Animal and vegetable fats and oils
• Technical Committee: D31 - Leather
• Drafting Committee: D31.08 - Fats and Oils

Relations

• Replaces: ASTM D5565-95(2001) - Standard Test Method for Determination of the Solidification Point of Fatty Acids Contained in Animal, Marine, and Vegetable Fats and Oils
• Effective Date: 01-Apr-2006
• Replaced By: ASTM D5565-95(2011) - Standard Test Method for Determination of the Solidification Point of Fatty Acids Contained in Animal, Marine, and Vegetable Fats and Oils (Withdrawn 2020)
• Effective Date: 01-Jan-2011

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D5565 – 95 (Reapproved 2006)
Standard Test Method for
Determination of the Solidification Point of Fatty Acids
Contained in Animal, Marine, and Vegetable Fats and Oils
This standard is issued under the fixed designation D5565; 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 3.7 Titer Test Thermometer—Specifications for thermom-
eter used in titer test determinations:
1.1 This test method covers determination of the solidifica-
3.7.1 Type—Etched stem glass.
tion point of fatty acids contained in animal, marine, and
3.7.2 Liquid—Mercury.
vegetable fats and oils.
3.7.3 Filling Above Liquid—Evacuated or nitrogen gas.
1.2 The values stated in SI units are to be regarded as the
3.7.4 Temperature Range—2° to+68°C.
standard.
3.7.5 Subdivisions—0.2°C.
1.3 This standard does not purport to address all of the
3.7.6 Total Length—385 to 390 mm.
safety concerns, if any, associated with its use. It is the
3.7.7 Stem Diameter—6 to 7 mm.
responsibility of the user of this standard to establish appro-
3.7.8 Stem Construction—Plain or lens front. The cross
priate safety and health practices and determine the applica-
section of the lens front type shall be such that it will pass
bility of regulatory limitations prior to use. See 5.2 and 5.7 for
throughan8mmringgagebutwillnotentera5mmslotgage.
additional information.
3.7.9 Bulb Diameter—5.5 mm to not greater than that of
2. Significance and Use stem.
3.7.10 Bulb Length—15to25mm.
2.1 This test method is intended to cover determination of
3.7.11 Bulb Construction—Corning normal or equally suit-
the solidification point of fatty acids contained in animal,
able thermometric glass.
marine, and vegetable fats and oils used in the softening and
3.7.12 Distance from Bottom of Bulb to−2° Mark—50 to
stuffing of leather, as well as those used in the manufacture of
60 mm.
products for such purpose.
3.7.13 Distance from 68° Mark to Top of Thermometer—20
3. Apparatus
to 35 mm.
3.7.14 Length of Unchanged Capillary Between the Highest
3.1 Griffın Low-Form Beaker, 2-L capacity.
Graduation and the Expansion Chamber—10 mm.
3.2 Wide Mouth Bottle—Capacity of 450 mL, height of 190
3.7.15 Expansion Chamber—To permit heating to at least
mm, and inside diameter of neck of 38 mm.
85°C.
3.3 Test Tubes—Lengthof100mmanddiameterof25mm,
3.7.16 Top Finish—Glass ring.
with or without rim. These tubes may have an etched mark
3.7.17 Longer Graduation Lines—At each 1° mark.
extending around the tube at a distance of 57 mm from the
3.7.18 Graduations—Numbered at zero and each multiple
bottom to show the height to which the tube is to be filled.
of 2°.
3.4 Saponification Vessel—A750- or 1000-mL flask.
3.7.19 Immersion—45mm,alineshallbeetchedaroundthe
3.5 Stirrer, 2- to 3-mm outside diameter, with one end bent
stem 45 mm from the bottom of the bulb.
in the form of a loop of 19-mm outside diameter. Glass,
3.7.20 Special Marking on Thermometer—A.O.C.S. Titer
nichrome, stainless steel, or monel wire shall be used. The
Test.
upper end can be formed to accommodate hand stirring or for
3.7.21 Maximum Scale Error Permitted at any Point—
attachment to a mechanical stirrer.
0.2°C.
3.6 Laboratory Thermometer, 0 to 150°C.
3.7.22 Marking on Case—A.O.C.S. Titer Test,−2° to+68°
in 0.2°C.
ThistestmethodisunderthejurisdictionofASTMCommitteeD31onLeather
3.7.23 Standardization—The thermometer shall be stan-
and is the direct responsibility of Subcommittee D31.08 on Fats and Oils. This test
dardized at the ice point and at intervals of approximately
method was developed in cooperation with the American Leather Chemists Assn.
20°C, for the condition of 45 mm immersion, and for an
(Methods H10 and H17-1957).
Current edition approved April 1, 2006. Published April 2006. Originally
average stem temperature of the emergent mercury column of
approved in 1994. Last previous edition approved in 2001 as D5565–95(2001).
25°C.
DOI: 10.1520/D5565-95R06.
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D5565 – 95 (2006)
3.8 Filter Paper, qualitative, rapid filtering grade. a small beaker without a funnel. The acids must remain
completely melted until entirely filtered.
4. Reagents
5.7 After heating the filtered acids on a hot plate to 130°C
4.1 Glycerol-Caustic Solution, prepared by dissolving, with
to remove traces of moisture, fill the titer test tube to a height
the aid of heat, 250 g of solid potassium hydroxide in 1250 g of 57 mm from the bottom. (Warning—The sample shall not
of glycerin (dynamite or C. P. grade). To avoid foaming,
be held at 130°C or reheated to this temperature more than
heating shall not exceed 135 to 145°C. (Sodium hydroxide can once. If excessive moisture is present, the water shall be
not be substituted for potassium hydroxide.)
allowedtosettleandthefattyacidsdecantedandthenrefiltered
4.2 Sulfuric Acid, 30% by weight. and reheated. The acids must be thoroughly dry.)
5.8 Solidification of the Fatty Acids—Adjust the water bath
5. Pro
...