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GB/T 9870.3-2025 Active
GB/T 9870.3-2025 Rubber,vulcanized or thermoplastic—Determination of dynamic properties—Part 3:Glass transition temperature(Tg)
Abstract
This document describes a method for determining the glass transition temperature (Tg) of vulcanized rubber with a hardness range of 30IRHD to 80IRHD. The dynamic performance is measured by applying a specified strain and frequency in the form of a sine wave during a temperature scan, and the glass transition temperature (Tg) is determined by the peak value of the tanδ-temperature curve. The glass transition temperature (Tg) determined in this way can be used to guide the use temperature of the material.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 9870.3-2025 |
| CCS | Rubber products and their auxiliary materials |
| ICS | Rubber |
| Implement Date | 2026-05-01 |
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