Property

Requirement

Test method

Longitudinal charge

-10+0%

ASTM D 2671

Tensile strength

≥10.4 MPa

ASTM D 2671

Ultimate Elongation

≥200%

ASTM D 2671

Heat shock 225C/4h

No cracking, dripping, or flowing of outer wall

ASTM D 2671

Heating Aging, 175C/168h（7.3 Mpa）（≥100%）

No cracking, dripping, or flowing of outer wall

ASTM D 2671

Water Absorption

≤1%

ASTM D 257

Dielectric Strength

≥19.7 KV/mm

ASTM D 2671

Volume resistivity

≥1*10^12 Ω•cm

ASTM D 2671

Flammability

FMVSS302,app.Dependent

ASTM D 2671

Size

Inner diameter

Wall thickness

IDe（min） Expanded as supplied

IDr（max） Recovered after heating

Tw(nom)

Recovered after heating

Ta(nom)

Recovered after heating

Φ5.7/1.3

5.7

1.3

1.2

0.56

Φ7.4/1.7

7.4

1.7

1.52

0.76

Φ11/2.4

11.0

2.4

1.91

1.02