Item

Unit

Specification

Standard

Density

Kg/m3

95

GB/T 6343

Flammability

Oxygen index

%

≥32

GB/T 2406

SDR

75

GB/T 8627

GB 8624-2006

Conductivity factor
Average temperature
-20
0
40

W/(m.k)

.031
0.034
0.036

GB/T 10294

Water vapor permeability

coefficient

g/(m.s.pa)

2.8×10-11

GB/T 17146-1997

Factor

≥7.0×103

Water absorption ratio in vacuum

%

10

GB/T 177942008

Dimension stability
105±3, 7d

%

≤10

GB/T 8811

Crack resistance

N/cm

≥2.5

GB/T 10808

Compression resilience ratio
Compression ratio 50%
Compression time 72h

%

≥70

GB/T 6669-2001

Anti-ozone
Ozone pressure 202mpa
200h

Not cracking

GB/T 7762

Aging resistance 150h

Slightly crumpling, no cracks,no pin holes, not deforming

GB/T 16259

Temperature

-40110

GB/T17794