GB/T 20673-2006 in English
VALIDCellular plastics - Determination of the coefficient of linear thermal expansion of rigid materials at sub-ambient temperatures
- Issued on:2006-09-18
- Implemented on:2007-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$194.00
《GB/T 20673-2006硬质泡沫塑料 低于环境温度的线膨胀系数的测定》由TC48(全国塑料制品标准化技术委员会)归口,主管部门为中国轻工业联合会。
本标准规定了测定硬质泡沫塑料低于环境温度的线膨胀系数的方法。本标准适用于测定硬质泡沫塑料在选定低温与环境温度之间的平均线膨胀系数。
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.

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