0.75mm HDPE PVC Geomembrane Circular Tanks for Fish Farming in Office Building Design

Item

Index

Thickness mm

0.75

1.00

1.25

1.50

2.00

2.50

3.00

1

Density g/cm³

>=0.940

2

Tensile yield strength(longitudinal and transverse)N/mm

>=11

>=15

>=18

>=22

>=29

>=37

>=44

3

Tensile strength at break(longitudinal and transverse)N/mm

>=20

>=27

>=33

>=40

>=53

>=67

>=80

4

Yield elongation(longitudinal and transverse)%

>=12

5

Elongation at break(longitudinal and transverse)%

>=700

6

Right angle tear load(longitudinal and transverse)N

>=93

>=125

>=160

>=190

>=250

>=315

>=375

7

Anti puncture strengthN

>=240

>=320

>=400

>=480

>=640

>=800

>=960

8

Tensile load stress cracking(Incision constant load extension method)

300

9

Carbon black content%

2.0~3.0

10

Carbon black dispersion

In 10 dates, level 3 shall no more than 1, level 4 and level 5 is not allowed

11

Oxidation induction time(OIT)min

Oxidation induction time under normal pressure>=100

Oxidation induction time under high pressure>=400

12

85℃ heat aging(OIT Rretention rate after 90 days under normal pressure)%

>=55

13^a

Anti-UV(OIT Rretention rate after 1600h Ultraviolet radiation)

>=50

Note: If the thickness specification not listed in the table, its technical index shall be according to interpolation method

You can choose each one to test of OIT Rretention rate under normal pressure or high pressure of No.11 and 13 listed in the table