GB/T 5169.21-2017: Fire hazard testing for electric and electronic products -- Part 21: Abnormal heat -- Ball pressure test method

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Scope

This Part of GB/T 5169 specifies the ball pressure test as a method for evaluating the
softening temperature and accelerated material flow under load of polymeric materials
and parts of end products in their ability to resist abnormal heat. It is applicable to the
materials used in electrotechnical equipment, subassemblies and components, and to
solid electrical insulating materials except ceramics.
NOTE: The Ball Pressure test method is not appropriate for certain elastomers, foamed
materials, and other materials that tend to be soft at room temperature. Product Committees
are encouraged to evaluate these materials using other methods such as IEC 60695-10-3[3].
This basic safety publication is intended for use by technical committees in the
preparation of standards in accordance with the principles laid down in IEC Guide 104
and ISO/IEC Guide 51.
One of the responsibilities of a technical committee is, wherever applicable, to make
use of basic safety publications in the preparation of its publications. The requirements,
test methods or test conditions of this basic safety publication will not apply unless
specifically referred to or included in the relevant publications.

Basic Data

Standard ID	GB/T 5169.21-2017 (GB/T5169.21-2017)
Description (Translated English)	Fire hazard testing for electric and electronic products -- Part 21: Abnormal heat -- Ball pressure test method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	K04
Classification of International Standard	13.220.40; 29.020
Word Count Estimation	14,146
Date of Issue	2017-12-29
Date of Implementation	2018-07-01
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China