av电影亚|黄色毛骗视频|久久超碰AV|www.加勒比av|美女A级毛片|日韩AV在线资源|牢记官网起草|人兽wv免费|亚洲操逼AV|一区二区不卡无码

1

Before ageing test

1.1 Tensile strength(MPa)

≥10.0

1.2 Elongation at break(%)

≥300

2

After oven ageing test

2.1 Test condition

80±2℃/240h

2.2 Tensile strength rate(%)

±15

2.3 Elongation at break rate(%)

±15

3

Oil-resistance test

(IRM902 oil)

3.1 Test condition

100±2℃/240h

3.2 Tensile strength rate(%)

±40

3.3 Elongation at break rate(%)

±40

4

Ozone ageing test

4.1 Test condition

40℃/72h, concentration 2ppm or 25℃/24h, 260ppm

4.2 Test result

Without crack

5

Heat extension test

5.1 Test condition

200±3℃/15min, stress 20N/cm²

5.2 Loading elongation rate(%)

< 100

5.3 Loaded elongation rate(%)

< 25

6

Low-temperature impact test

6.1 Test condition

-40℃/4h

6.2 Wire surface after low-temperature impact

Without crack

7

Oxygen index and flame resistance (EN50265-2-1 burning test)

≥32