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  • ASTM
    D1525-25 Standard Test Method for Vicat Softening Temperature of Plastics (Redline)
    Edition: 2025
    $144.00
    Unlimited Users per year

Description of ASTM-D1525 2025

ASTM D1525-25

Redline Standard: Standard Test Method for Vicat Softening Temperature of Plastics




ASTM D1525

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 technically similar to ISO 306 (2022).

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.


Keywords

plastics; thermoplastics; Vicat softening temperature;


ICS Code

ICS Number Code 83.080.01 (Plastics in general)


DOI: 10.1520/D1525-25



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