---
title: "ASTM D3386"
url: "https://mat-cs.com/astm-d3386"
description: "This test method covers determination of the coefficient of linear thermal expansion of electrical insulating materials by use of a thermomechanical analyzer."
---

ASTM Standard Withdrawn 2005

# ASTM D3386

Standard Test Method for Coefficient of Linear Thermal Expansion of Electrical Insulating Materials

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## Scope

1.1 This test method covers determination of the coefficient of linear thermal expansion of electrical insulating materials by use of a thermomechanical analyzer.

1.2 This test method is applicable to materials that are solid over the entire range of temperature used, and that retain sufficient hardness and rigidity over the temperature range so that irreversible indentation of the specimen by the sensing probe does not occur.

1.3 Transition temperatures also may be obtained by this test method.