CHEMICAL RESISTANT


CHEMICAL RESISTANT (DIN 22102)

Item

Tensile strength (MPa)

Elongation (%)

Abrasion loss (mm3)

Hardness (Shore A) +10/-5

Ozone resistance

Cover

Property

Before ageing

>=14

>=400

250

60

No crack

After ageing

>=12

>=340

-

65

 

Acid and base resistant

Class

Chemical

Concentration

Condition

Changing ratio before and after soaking in chemical

C x h

Swelling ratio

Changing ratio of strength

A1

HCI

18%

50OC x 96H

<= + 10%

<= - 10%

A2

H2SO4

50%

50OC x 96H

<= + 10%

<= - 10%

A3

NaOH

48%

50OC x 96H

<= + 10%

<= - 10%