ASTM-D1525 › Historical Revision Information
Standard Test Method for Vicat Softening Temperature of Plastics
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Scope
1.1 This test method covers determination of the temperature at which a specified needle penetration occurs when specimens are subjected to specified controlled test conditions.
1.2 This test method is not recommended for ethyl cellulose, nonrigid poly(vinyl chloride), poly(vinylidene chloride), or other materials having a wide Vicat softening range.
1.3 The values stated in SI units are to be regarded as standard.
1.4 Due to the potential safety and environmental hazards associated with mercury-filled thermometers, the use of alternative temperature measuring devices (such as thermocouples and RTDs) is encouraged.
1.5 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.
Note 1—This test method and ISO 306:1987(E) are technically equivalent, with the exception of the allowance for creep, prior to beginning the test, in this test method.Significance and Use
Data obtained by this test method may be used to compare the heat-softening qualities of thermoplastic materials.
This test method is useful in the areas of quality control, development, and characterization of plastic materials.
Keywords
plastics; thermoplastics; Vicat softening temperature
To find similar documents by ASTM Volume:
08.01 (Plastics (I): D256 - D3159)
To find similar documents by classification:
83.080.01 (Plastics in general)
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Document Number
ASTM-D1525-07
Revision Level
2007 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
March 1, 2007
Document Type
Test Method
Page Count
9 pages
Committee Number
D20.30