GB/T 20673-2006 (English Version) PDF

Standard No.: GB/T 20673-2006
Language: Chinese, Available in English version
Release Date: 2006
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 20673-2006

Scope: This standard specifies the method for determining the coefficient of linear expansion of rigid foamed plastics below ambient temperature. This standard applies to the determination of the "average" coefficient of linear expansion of rigid foamed plastics between selected low temperatures and ambient temperatures. The coefficient of linear expansion measured by this standard is only valid for the specific sample tested within the test time. Rigid foam plastics are anisotropic, and the results obtained from tests in different directions are not comparable.

GB/T 20673-2006 Referenced Document

GB/T 2918-1998 Plastics--Standard atmospheres for conditioning and testing
GB/T 6342-1996 Cellular plastics and rubbers--Determination of linear dimensions

2006 GB/T 20673-2006 Cellular plastics Determination of the coefficient of linear thermal expansion of rigid material s at sub-ambient temperatures