ASTM D127-87(2004)
(Test Method)Standard Test Method for Drop Melting Point of Petroleum Wax Including Petrolatum
Standard Test Method for Drop Melting Point of Petroleum Wax Including Petrolatum
SCOPE
1.1 This test method covers the determination of the drop melting point of petroleum wax. It is used primarily for petrolatums and other microcrystalline wax.
Note 1—Additional methods used for petroleum waxes are Test Method D 87 and Test Method D 938. Results obtained may differ, depending on the method used. For pharmaceutical petrolatum, Test Method D 127 usually is used.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
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An American National Standard
Designation:D127–87(Reapproved2004) Technical Association of Pulp and Paper Industry
Tentative Method T 634ts-64
Designation: 133/79(87)
Standard Test Method for
Drop Melting Point of Petroleum Wax Including Petrolatum
This standard is issued under the fixed designation D 127; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope E 1 Specification forASTM Liquid-in-Glass Thermometers
1.1 This test method covers the determination of the drop
3. Terminology
melting point of petroleum wax. It is used primarily for
3.1 Definitions:
petrolatums and other microcrystalline wax.
3.1.1 drop melting point of petroleum wax—the temperature
NOTE 1—Additional methods used for petroleum waxes are Test
at which material becomes sufficiently fluid to drop from the
Method D 87 and Test Method D 938. Results obtained may differ,
thermometer used in making the determination under definite
depending on the method used. For pharmaceutical petrolatum, Test
prescribed conditions.
Method D 127 usually is used.
1.2 The values stated in SI units are to be regarded as the 4. Summary of Test Method
standard. The values given in parentheses are for information
4.1 Specimens are deposited on two thermometer bulbs by
only.
dipping chilled thermometers into the sample. The thermom-
1.3 This standard does not purport to address all of the
eters bearing the specimens are placed in test tubes and heated
safety concerns, if any, associated with its use. It is the
by means of a water bath until the specimens melt and the first
responsibility of the user of this standard to establish appro-
drop falls from each thermometer bulb. The average of the
priate safety and health practices and determine the applica-
temperatures at which these drops fall is the drop melting point
bility of regulatory limitations prior to use.
of the sample.
2. Referenced Documents
5. Significance and Use
2.1 ASTM Standards:
5.1 Meltingpointisawaxpropertythatisofinteresttomost
D 87 Test Method for Melting Point of Petroleum Wax
wax consumers. It can be an indication of the performance
(Cooling Curve)
properties of the wax. Drop melting point, Test Method D 127,
D 938 Test Method for Congealing Point of Petroleum
is often used to measure the melting characteristics of petro-
Waxes, Including Petrolatum
latums and other high viscosity petroleum waxes.
6. Apparatus
This test method is under the jurisdiction of ASTM Committee D02 on
6.1 Test Tubes—Standard test tubes, 25 mm (1 in.) in
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.10 on Properties of Petroleum Wax. outside diameter and 150 mm (6 in.) long. The test tubes shall
Current edition approved July 1, 2004. Published July 2004. Originally approved
be supplied with corks grooved at the sides to permit air
in 1922. Last previous edition approved in 1999 as D 127–87 (1999).
circulation and bored in the exact center to receive the
This test method is sponsored jointly by the Technical Association of Pulp and
thermometer.
Paper Industry and ASTM International.
This test method was adopted as a jointASTM-IPstandard in 1964. In the IP, this
6.2 Bath—Atransparent container of not less than 1500-mL
test method is under the jurisdiction of Standardization Committee.
capacity, that will permit the immersion of the test tubes to a
In 1963, the title, scope, and definition were changed to define the determination
depth of at least 100 mm and still leave a depth of 15 mm of
of “drop melting point.” Sections on procedure, report, and precision were revised,
water below the bottoms of the test tubes.
and a new section on significance was added.
In 1964, minor editorial changes and additions to this method were made for its
6.3 Thermometer, having a range as shown below and
publication as a joint ASTM-IP standard.
conforming to the requirements as prescribed in Specification
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
E 1 or in specifications for IP Standard Thermometers:
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
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D127–87 (2
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