Standard Test Method for Vicat Softening Temperature of Plastics

SIGNIFICANCE AND USE
5.1 Data obtained by this test method is used to compare the heat-softening qualities of thermoplastic materials.  
5.2 This test method is useful in the areas of quality control, development, and characterization of plastic materials.
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. No other units are included in this 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 with liquid-in-glass thermometers containing mercury, the use of alternative measuring devices, such as digital thermometers using thermocouple of RTD sensors 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, health and environmental practices and determine the applicability of regulatory limitations prior to use.
Note 1: This test method is equivalent to ISO 306 in all sections with the exceptions of the allowance for creep, prior to the beginning of the test and the allowance of the fluidized powder as a heat transfer medium.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Historical
Publication Date
31-Jul-2017
Technical Committee
Drafting Committee
Current Stage
Ref Project

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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D1525 − 17
Standard Test Method for
1
Vicat Softening Temperature of Plastics
This standard is issued under the fixed designation D1525; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 2. Referenced Documents
2
1.1 This test method covers determination of the tempera- 2.1 ASTM Standards:
ture at which a specified needle penetration occurs when D618Practice for Conditioning Plastics for Testing
specimens are subjected to specified controlled test conditions. D883Terminology Relating to Plastics
3
D1898Practice for Sampling of Plastics (Withdrawn 1998)
1.2 This test method is not recommended for ethyl
E1Specification for ASTM Liquid-in-Glass Thermometers
cellulose, nonrigid poly(vinyl chloride), poly(vinylidene
E77Test Method for Inspection and Verification of Ther-
chloride), or other materials having a wide Vicat softening
mometers
range.
E608/E608MSpecification for Mineral-Insulated, Metal-
1.3 The values stated in SI units are to be regarded as
Sheathed Base Metal Thermocouples
standard. No other units are included in this standard.
E691Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
1.4 Due to the potential safety and environmental hazards
associated with mercury-filled thermometers, the use of alter- E887Test Method for Silica in Refuse-Derived Fuel (RDF)
and RDF Ash
native temperature measuring devices (such as thermocouples
and RTDs) is encouraged with liquid-in-glass thermometers E1137/E1137MSpecification for Industrial Platinum Resis-
tance Thermometers
containing mercury, the use of alternative measuring devices,
such as digital thermometers using thermocouple of RTD E2251Specification for Liquid-in-Glass ASTM Thermom-
eters with Low-Hazard Precision Liquids
sensors is encouraged.
4
2.2 ISO Standards:
1.5 This standard does not purport to address all of the
ISO 306Plastics—Thermoplastic Material—Determination
safety concerns, if any, associated with its use. It is the
of Vicat Softening Temperature
responsibility of the user of this standard to establish appro-
priate safety, health and environmental practices and deter-
3. Terminology
mine the applicability of regulatory limitations prior to use.
3.1 Definitions:
NOTE 1—This test method is equivalent to ISO306 in all sections with
3.1.1 Definitions of plastics used in this test method are in
theexceptionsoftheallowanceforcreep,priortothebeginningofthetest
and the allowance of the fluidized powder as a heat transfer medium.
accordance with those defined in Terminology D883, unless
otherwise specified.
1.6 This international standard was developed in accor-
3.1.2 Vicat softening temperature—thetemperatureatwhich
dance with internationally recognized principles on standard-
2
a flat-ended needle of 1-mm circular cross section will
ization established in the Decision on Principles for the
penetrate a thermoplastic specimen to a depth of 1 mm under
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
1
ThistestmethodisunderthejurisdictionofASTMCommitteeD20onPlastics Standards volume information, refer to the standard’s Document Summary page on
and is the direct responsibility of Subcommittee D20.30 on Thermal Properties the ASTM website.
3
(Section D20.30.07). The last approved version of this historical standard is referenced on
Current edition approved Aug. 1, 2017. Published August 2017. Originally www.astm.org.
4
approved in 1958. Last previous edition approved in 2009 as D1525-09. DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/D1525-17. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D1525 − 17
FIG. 1 Apparatus for Softening Temperature Determination (Immersion Bath)
a specified load (force) perpendicular to the test specimen
using a selected uniform rate of temperature rise.
4. Summary of Test Method
4.1 A flat-ended needle loaded with a specified mass is
placedindirectcontactwithatestspecimen.Themassapplied
can be one of two accepted loads, as follows:
Loading1 21060.2N
Loading
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D1525 − 09 D1525 − 17
Standard Test Method for
1
Vicat Softening Temperature of Plastics
This standard is issued under the fixed designation D1525; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 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. No other units are included in this 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 with liquid-in-glass thermometers containing
mercury, the use of alternative measuring devices, such as digital thermometers using thermocouple of RTD sensors 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 is equivalent to ISO 306 in all sections with the exceptions of the allowance for creep, prior to the beginning of the test
and the allowance of the fluidized powder as a heat transfer medium.
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, health and environmental practices and determine the applicability of
regulatory limitations prior to use.
NOTE 1—This test method is equivalent to ISO 306 in all sections with the exceptions of the allowance for creep, prior to the beginning of the test
and the allowance of the fluidized powder as a heat transfer medium.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D618 Practice for Conditioning Plastics for Testing
D883 Terminology Relating to Plastics
3
D1898 Practice for Sampling of Plastics (Withdrawn 1998)
E1 Specification for ASTM Liquid-in-Glass Thermometers
E77 Test Method for Inspection and Verification of Thermometers
E608/E608M Specification for Mineral-Insulated, Metal-Sheathed Base Metal Thermocouples
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E887 Test Method for Silica in Refuse-Derived Fuel (RDF) and RDF Ash
E1137/E1137M Specification for Industrial Platinum Resistance Thermometers
1
This test method is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.30 on Thermal Properties (Section
D20.30.07).
Current edition approved Nov. 15, 2009Aug. 1, 2017. Published December 2009August 2017. Originally approved in 1958. Last previous edition approved in 20072009
as D1525 - 07.D1525 - 09. DOI: 10.1520/D1525-09.10.1520/D1525-17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 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.
3
The last approved version of this historical standard is referenced on www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D1525 − 17
FIG. 1 Apparatus for Softening Temperature Determination (Immersion Bath)
E2251 Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids
4
2.2 ISO Standa
...

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