ASTM D1525-17
Standard Test Method for Vicat Softening Temperature of Plastics
- Standard No.
- ASTM D1525-17
- Release Date
- 2017
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D1525-17e1
- Latest
- ASTM D1525-17e1
- Scope
-
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.
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 ISO8201;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.
ASTM D1525-17 Referenced Document
- ASTM D1898
- ASTM D618 Standard Practice for Conditioning Plastics for Testing
- ASTM D883 Standard Terminology Relating to Plastics
- ASTM E1 Standard Specification for ASTM Thermometers
- ASTM E1137/E1137M Standard Specification for Industrial Platinum Resistance Thermometers
- ASTM E2251 Standard Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids
- ASTM E608/E608M Standard Specification for Mineral-Insulated, Metal-Sheathed Base Metal Thermocouples
- ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
- ASTM E77 Standard Test Method for Inspection and Verification of Thermometers
- ASTM E887 Standard Test Method for Silica in Refuse-Derived Fuel (RDF) and RDF Ash
- ISO 306 Plastics — Thermoplastic materials — Determination of Vicat softening temperature (VST)
ASTM D1525-17 history
- 2017 ASTM D1525-17e1 Standard Test Method for Vicat Softening Temperature of Plastics
- 2017 ASTM D1525-17 Standard Test Method for Vicat Softening Temperature of Plastics
- 2009 ASTM D1525-09 Standard Test Method for Vicat Softening Temperature of Plastics
- 2007 ASTM D1525-07 Standard Test Method for Vicat Softening Temperature of Plastics
- 2006 ASTM D1525-06 Standard Test Method for Vicat Softening Temperature of Plastics
- 2000 ASTM D1525-00 Standard Test Method for Vicat Softening Temperature of Plastics
- 1987 ASTM D1525-87 Standard Test Method for Vicat Softening Temperature of Plastics
