Complaint
| S/N | 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 (vertical and horizontal) N/mm | ≥11 | ≥15 | ≥18 | ≥22 | ≥29 | ≥37 | ≥44 |
| 3 | Tensile breaking strength (vertical and horizontal) N/mm | ≥20 | ≥27 | ≥33 | ≥40 | ≥53 | ≥67 | ≥80 |
| 4 | Elongation (vertical and horizontal) % | - | - | - | ≥12 | |||
| 5 | Elongation at break (vertical and horizontal) % | ≥700 | ||||||
| 6 | Tearing load at right angle (vertical and horizontal) N | ≥93 | ≥125 | ≥160 | ≥190 | ≥250 | ≥315 | ≥375 |
| 7 | Anti-puncture strength N | ≥240 | ≥320 | ≥400 | ≥480 | ≥540 | ≥800 | ≥960 |
| 8 ' | Tensile load stress cracking (tensile method of dead load of the cut) h | _ | ≥300 | |||||
| 9 | Carbon black content % | 2.0~3.0 | ||||||
| 10 | Carbon black dispersion | The number of Level 3 among 10 data is not more than one; Level 4 and Level 5 are not allowed. | ||||||
| Oxidation induction time (OIT) min | Oxidation induction time under normal pressure ≥100 | |||||||
| 11* | Oxidation induction time under disjoining pressure ≥400 | |||||||
| 12 | 85°C thermal aging (retention rate of OIT under normal pressure after 90d) % | ≥55 | ||||||
| 13a | Ultraviolet resistance (retention rate of OIT after 1600h ultraviolet irradiation) % | ≥50 | ||||||
| Note: Technical performance index of thickness specification not listed in the table shall be implemented according to interpolation method. | ||||||||
| For two indexes of Item 11 and Item 13, select one from retention rate of OIT under normal pressure and retention rate of OIT under high pressure and carry out the test. | ||||||||
