GB/T 4339-2008: Test methods for thermal expansion characteristic parameters of metallic materials

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Scope

This Standard specifies the definitions and symbols, principles, test devices and requirements,
specimen preparation, device calibration, measurement procedures, calculation of measurement
results, test report, accuracy and deviation, etc. of the thermal expansion characteristic
parameter measurement methods of metallic materials and other related solid materials.
This Standard specifies the use of a push-rod dilatometer to test the linear thermal expansion of
rigid solid materials. This is applicable to the testing of the linear thermal expansion of metallic
material specimens within the temperature range of 180 C ~ 900 C with the help of a
component composed of the same fused quartz carrier and push rod. It is also applicable to the
testing of the linear thermal expansion of specimens with rigid solid characteristics, such as:
ceramics, refractory materials, glass and rocks, etc. If components of high-purity alumina are
used instead, the testing temperature range can be expanded to 1,600 C; if isotropic graphite
is used, then, it can be expanded to 2,500 C.

Basic Data

Standard ID	GB/T 4339-2008 (GB/T4339-2008)
Description (Translated English)	Test methods for thermal expansion characteristic parameters of metallic materials
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H21
Classification of International Standard	77.040.99
Word Count Estimation	23,264
Date of Issue	2008-10-10
Date of Implementation	2009-05-01
Older Standard (superseded by this standard)	GB/T 10562-1989; GB/T 4339-1999
Quoted Standard	GB/T 8170; JJG 141; JJG 229; JJG 351
Adopted Standard	ASTM E228-2006, MOD
Regulation (derived from)	National Standard Approval Announcement 2008 No.17 (Total No.130)
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
Summary	This standard specifies the definitions and symbols metal materials and other related parameters of thermal expansion of solid materials measurement methods, principle, testing devices and requirements, sample preparation, equipment calibration, measurement procedures, measurements to calculate, test reports, precision with an equal bias. This standard specifies the use of linear thermal expansion cytometry pusher rigid solid material expansion, which applies the same kind of help from the fused silica carrier assembly with push impeach constitute, in the temperature range of -180��C ~ 900��C, the detection of metallic materials testing kind of linear thermal expansion, but also for ceramics, refractory, linear thermal expansion of the sample with the detection of the characteristics of rigid solid rocks, , glass if the switch assembly of high purity alumina, the detection temperature range can be extended to 1600��C, switch isotropic graphite can be extended to 2500��C.