火车弹簧防雪套

序号

测试项目Property

测试方法Test Method

检测结果Typical Value

1

拉伸强度Tensile Strength

ASTM D638

12 N/mm2

2

断裂伸长率Ultimate Elongation

ASTM D638

450%

3

热冲击 Heat Shock @ 250º C

UL 224

通过passes

4

低温试验 Cold Bend @ -30ºC

ASTM D2671

通过passes

5

阻燃性 Flammability

UL 224, VW-1

通过passes

6

击穿强度Dielectric Strength

ASTM D149

25kV/mm

7

体积电阻率Volume Resistivity

ASTM D257

1x1014Ω•cm

8

纵向收缩率Longitudinal Change

ASTM D2671

Inside +/-10%

9

吸水率 Water Absorption

ASTM D570

<0.5%