GB/T 33061.1-2025: Plastics - Determination of dynamic mechanical properties - Part 1: General principles

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Scope

This document specifies the general definitions, principles, apparatus, test specimens,
number of test specimens, conditioning, test procedures, and expression of results for
the test methods described in other parts of GB/T 33061.
Note 1.The various parts of GB/T 33061 describe methods for determining the
dynamic mechanical properties of rigid plastics within the range of linear
viscoelastic behavior.
Results obtained from different modes of deformation specified in GB/T 33061 are not
directly comparable.
Note 2.In tensile vibration, the stress applied throughout the thickness of the test
specimen is uniform; in flexural vibration, the surface properties of the
specimen are the dominant factor. Therefore, data obtained from flexural
vibration and tensile vibration are comparable only within the strain range in
which the specimen structure is homogeneous and the stress-strain
relationship is linear.

Basic Data

Standard ID	GB/T 33061.1-2025 (GB/T33061.1-2025)
Description (Translated English)	Plastics - Determination of dynamic mechanical properties - Part 1: General principles
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G31
Classification of International Standard	83.080.01
Word Count Estimation	26,241
Date of Issue	2025-12-02
Date of Implementation	2026-07-01
Older Standard (superseded by this standard)	GB/T 33061.1-2016
Issuing agency(ies)	State Administration for Market Regulation, Standardization Administration of China