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BS ISO 4664-3:2021

BS ISO 4664-3:2021

$102.76

Rubber, vulcanized or thermoplastic. Determination of dynamic properties – Glass transition temperature (Tg)

Published By Publication Date Number of Pages
BSI 2021 20
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This document specifies a method for determining the glass transition temperature, Tg, of vulcanized rubbers in the hardness range from 30 IRHD to 80 IRHD. The dynamic properties are measured via temperature sweep in sinusoidal deformation at a defined strain and frequency and Tg is determined from the peak in the tan ? versus temperature curve. Glass transition temperature, Tg, determined in this way serves the purpose of a guideline to the service temperature of the material.

PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
5.1 General
10 5.2 Force capability and measurement
5.3 Cycling capability
5.4 Damping measuring device
5.5 Test chamber
5.6 Grips
5.7 Measurement of test piece dimensions
6 Test piece
6.1 Preparation
6.2 Dimensions
11 7 Number of test pieces
8 Conditioning
12 9 Procedure
9.1 Measurement of the test piece dimensions
9.2 Measurement of properties
9.3 Test conditions
9.3.1 Strain
9.3.2 Frequency
9.3.3 Temperature
9.4 Clamping and testing
10 Expression of results
10.1 General
13 10.2 Calculation of tan δ
11 Determination of glass transition temperature, Tg
12 Precision
14 13 Test report
15 Annex A (informative) Temperature dependence of dynamic properties of vulcanized rubber
17 Annex B (informative) Precision results from an interlaboratory test programme
19 Bibliography

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BS ISO 4664-3:2021
$102.76