ASTM D127-05

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An American National Standard
Designation: D 127 – 05 Technical Association of Pulp and Paper Industry
Tentative Method T 634ts-64
Designation: 133/79 (87)
Standard Test Method for
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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* 3. Terminology
1.1 This test method covers the determination of the drop 3.1 Definitions:
melting point of petroleum wax. It is used primarily for 3.1.1 drop melting point of petroleum wax—the temperature
petrolatums and other microcrystalline wax. at which material becomes sufficiently fluid to drop from the
thermometer used in making the determination under definite
NOTE 1—Additional methods used for petroleum waxes are Test
prescribed conditions.
Method D87 and Test Method D 938. Results obtained may differ,
depending on the method used. For pharmaceutical petrolatum, Test
4. Summary of Test Method
Method D 127 usually is used.
4.1 Specimens are deposited on two thermometer bulbs by
1.2 The values stated in SI units are to be regarded as the
dipping chilled thermometers into the sample. The thermom-
standard. The values given in parentheses are for information
eters bearing the specimens are placed in test tubes and heated
only.
by means of a water bath until the specimens melt and the first
1.3 This standard does not purport to address all of the
drop falls from each thermometer bulb. The average of the
safety concerns, if any, associated with its use. It is the
temperatures at which these drops fall is the drop melting point
responsibility of the user of this standard to establish appro-
of the sample.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. Significance and Use
5.1 Meltingpointisawaxpropertythatisofinteresttomost
2. Referenced Documents
wax consumers. It can be an indication of the performance
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2.1 ASTM Standards:
properties of the wax. Drop melting point, Test Method D 127,
D87 Test Method for Melting Point of Petroleum Wax
is often used to measure the melting characteristics of petro-
(Cooling Curve)
latums and other high viscosity petroleum waxes.
D 938 Test Method for Congealing Point of Petroleum
Waxes, Including Petrolatum
6. Apparatus
E1 Specification forASTM Liquid-in-Glass Thermometers
6.1 Test Tubes—Standard test tubes, 25 mm (1 in.) in
outside diameter and 150 mm (6 in.) long. The test tubes shall
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utilize corks grooved at the sides to permit air circulation and
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
bored in the center to receive the thermometer.
D02.10 on Properties of Petroleum Wax.
6.2 Bath—Atransparent container of not less than 1500-mL
Current edition approved May 1, 2005. Published May 2005. Originally
capacity, that will permit the immersion of the test tubes to a
approved in 1922. Last previous edition approved in 2004 as D 127–87(2004).
This test method is sponsored jointly by the Technical Association of Pulp and depthofatleast90mmandstillleaveadepthofapproximately
Paper Industry and ASTM International.
15 mm of water below the bottoms of the test tubes.
ThistestmethodwasadoptedasajointASTM-IPstandardin1964.IntheIP,this
6.3 Thermometer, having a range as shown below and
test method is under the jurisdiction of Standardization Committee.
conforming to the requirements as prescribed in Specification
In 1963, the title, scope, and definition were changed to define the determination
of “drop melting point.” Sections on procedure, report, and precision were revised,
E1 or in specifications for IP Standard Thermometers:
and a new section on significance was added.
Thermometer Number
In 1964, minor editorial changes and additions to this method were made for its
Thermometer Range ASTM IP
publication as a joint ASTM-IP standard.
32 to 127°C 61C 63C
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
90 to 260°F 61F . . .
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.
*A Summary of Changes section appears at the end of this standard.
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D127–05
6.4 Bath Thermome
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