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PVC Cell Classification - ASTM D1784
This method classifies PVC compounds based on the material's composition and select properties. The cell classification is a five or six digit number. The minimum property value will determine the cell number even if the maximum expected value may fall within the next higher cell.
Cell Class Order | Property | Unit | Cell Limits | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | |||
1st | Base resin | unspecified | PVC homopolymer | CPVC | PVC copolymer | |||||||||
2nd | Notched Izod | J/m | unspecified | <34.7 | 34.7 | 80.1 | 266.9 | 533.8 | 800.7 | |||||
ft-lb/in | <0.65 | 0.65 | 1.5 | 5 | 10 | 15 | ||||||||
3rd | Tensile Strength | MPa | unspecified | <34.5 | 34.5 | 41.4 | 48.3 | 55.2 | ||||||
psi | <5000 | 5000 | 6000 | 7000 | 8000 | |||||||||
4th | Tensile Modulus | MPa | unspecified | <1930 | 1930 | 2206 | 2482 | 2758 | 3034 | |||||
psi | <280000 | 280000 | 320000 | 360000 | 400000 | 440000 | ||||||||
5th | DTUL @ 1.80 MPa (264 psi) | °C | unspecified | <55 | 55 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 |
°F | <131 | 131 | 140 | 158 | 176 | 194 | 212 | 230 | 251 | 266 | 284 |
Examples
Cell Class: 12345 | Cell Class: 243611 |
---|---|
Base Resin: PVC homopolymer | Base Resin: CPVC |
Notched Izod: 34.7 J/m | Notched Izod: 266.9 J/m |
Tensile Strength: 41.4 MPa | Tensile Strength: 41.4 MPa |
Tensile Modulus: 2482 MPa | Tensile Modulus: 3034 MPa |
DTUL @ 1.80 MPa (264 psi): 80°C | DTUL @ 1.80 MPa (264 psi): 140°C |