| Item | Unit | Thickness of raw material | ||||
| 0.05mm | 0.075mm | 0.08mm | 0.13mm | |||
| Thickness of crepe paper | mm | 0.35±0.05 | 0.48±0.08 | 0.80.60±0.08 | 0.80±0.10 | |
| Ash content | % | ≤ 0.7 | ≤ 0.7 | ≤ 1.0 | ≤ 1.0 | |
| Moisture | % | 6.0-9.0 | ||||
| Water extract PH value | 6.0-8.0 | |||||
| Polluted oil | % | ≤0.1 | ||||
| Tensile strength | MD | KN/M | ≥1.96 | ≥2.6 | ≥3.0 | ≥3.3 |
| TD | KN/M | ≥1.3 | ≥1.96 | ≥2.3 | ≥2.7 | |
| Wrinkling | % | ≥ 50 | ||||
| Breakdown voltage | V/layer | ≥950 | ≥1000 | ≥1000 | ≥1000 | |
| Electric conductivity | ms/m | ≤8.0 | ≤8.0 | ≤9.0 | ≤10.0 | |
| No. | Index Name | Unit | Index | |
| 1 | Wrinkle Number | a /10mm Long | Number Required In Code | |
| 2 | Oil Suction Height | Portrait | mm/10min | ≥7 |
| mm/60min | ≥30 | |||
| Transverse | mm/10min | ≥20 | ||
| mm/60min | ≥50 | |||
| 3 | Water Content | % | ≤8 | |
| 4 | Ash Content | % | ≤1 | |
| 5 | Conductivity Of Aqueous Extract | Ms/m | ≤10 | |
| 6 | Ph Of Aqueous Extract | - | 6-8 | |
| 7 | Electrical Strength | Mv/m | ≥20 | |
