ASTM D5565-95

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

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: 14-May-1995
• Technical Committee: D31 - Leather
• Drafting Committee: D31.08 - Fats and Oils

Relations

• Replaced By: 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: 15-May-1995

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 5565 – 95
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 D 5565; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 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.
1.1 This test method covers determination of the solidifica-
4.4 Saponification Vessel—A 750- or 1000-mL flask.
tion point of fatty acids contained in animal, marine, and
4.5 Stirrer, 2- to 3-mm outside diameter, with one end bent
vegetable fats and oils.
in the form of a loop of 19-mm outside diameter. Glass,
1.2 The values stated in SI units are to be regarded as the
nichrome, stainless steel, or monel wire shall be used. The
standard.
upper end can be formed to accommodate hand stirring or for
1.3 This standard does not purport to address all of the
attachment to a mechanical stirrer.
safety concerns, if any, associated with its use. It is the
4.6 Laboratory Thermometer, 0 to 150°C.
responsibility of the user of this standard to establish appro-
4.7 Titer Test Thermometer—Specifications for thermom-
priate safety and health practices and determine the applica-
eter used in titer test determinations:
bility of regulatory limitations prior to use. See 6.2 and 6.7 for
4.7.1 Type—Etched stem glass.
additional information.
4.7.2 Liquid—Mercury.
2. Referenced Documents 4.7.3 Filling Above Liquid—Evacuated or nitrogen gas.
4.7.4 Temperature Range—2° to +68°C.
2.1 ASTM Standards:
4.7.5 Subdivisions—0.2°C.
D 473 Test Method for Sediment in Crude Oils and Fuel
4.7.6 Total Length—385 to 390 mm.
Oils by the Extraction Method
4.7.7 Stem Diameter—6 to 7 mm.
D 4057 Practice for Manual Sampling of Petroleum and
4.7.8 Stem Construction—Plain or lens front. The cross
Petroleum Products
section of the lens front type shall be such that it will pass
D 4177 Practice for Automatic Sampling of Petroleum and
through an 8 mm ring gage but will not entera5mm slot gage.
Petroleum Products
4.7.9 Bulb Diameter—5.5 mm to not greater than that of
3. Significance and Use
stem.
4.7.10 Bulb Length—15 to 25 mm.
3.1 This test method is intended to cover determination of
4.7.11 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
4.7.12 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.
4.7.13 Distance from 68° Mark to Top of Thermometer—20
4. Apparatus
to 35 mm.
4.7.14 Length of Unchanged Capillary Between the Highest
4.1 Griffın Low-Form Beaker, 2-L capacity.
Graduation and the Expansion Chamber—10 mm.
4.2 Wide Mouth Bottle—Capacity of 450 mL, height of 190
4.7.15 Expansion Chamber—To permit heating to at least
mm, and inside diameter of neck of 38 mm.
85°C.
4.3 Test Tubes—Length of 100 mm and diameter of 25 mm,
4.7.16 Top Finish—Glass ring.
with or without rim. These tubes may have an etched mark
4.7.17 Longer Graduation Lines—At each 1° mark.
4.7.18 Graduations—Numbered at zero and each multiple
This test method is under the jurisdiction of ASTM Committee D-31 on Leather of 2°.
and is the direct responsibility of Subcommittee D31.08 on Fats and Oils.This test
4.7.19 Immersion—45 mm, a line shall be etched around the
method was developed in cooperation with the American Leather Chemists Assn.
stem 45 mm from the bottom of the bulb.
(Methods H 10 and H 17-1957).
4.7.20 Special Marking on Thermometer—A.O.C.S. Titer
Current edition approved May 15, 1995. Published July 1995. Originally
published as D 5565 – 94. Last previous edition D 5565 – 94.
Test.
Annual Book of ASTM Standards, Vol 05.01.
Annual Book of ASTM Standards, Vol 05.02.
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D 5565
4.7.21 Maximum Scale Error Permitted at any Point— 6.5 Remove the water again, and, if necessary, repeat the
0.2°C. washings described in 5.4 until the wash water is neutral to a
4.7.22 Marking on Case—A.O.C.S. Titer Test, −2° to +68° methyl orange indicator.
in 0.2°C. 6.6 Transfer the fatty acids to a filter paper carefully, so as
4.7.23 Standardization—The thermometer shall be stan- not to include any water. The filter paper may be supported on
dardized at the ice point and at intervals of approximately a small beaker without a funnel. The acids must remain
20°C, for the condition of 45 mm immersion, and for an completely melted until entirely filtered.
average stem temperature of the emergent mercury column of 6.7 After heating the filtered acids on a hot plate to 130°C
25°C. to remove traces of moisture, fill the titer test tube to a height
4.8 Filter Paper, qualitative, rapid filtering grade. of 57 mm from the bottom.
NOTE 2—Caution: The sample shall not be held at 130°C or reheated
5. Reagents
to this temperature more than once. If excessive moisture is present, the
5.1 Glycerol-Caustic Solution, prepared by dissolving, with
water shall be allowed to settle and the fatty a
...