ASTM D 1525 Standard Test Method for Vicat Softening Temperature of Plastics
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ASTM D 1525 Document Information:
Title
Standard Test Method for Vicat Softening Temperature of Plastics
ASTM International
Publication Date:
Mar 1, 2007
Scope:
This test method covers determination of the temperature at
which a specified needle penetration occurs when specimens are
subjected to specified controlled test conditions.
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.
The values stated in SI units are to be regarded as
standard.
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.
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.
*A Summary of Changes section appears at the end of this
standard.
Keywords:
- plastics
- thermoplastics
- Vicat softening temperature
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