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.
PVC Cell Classification Criteria
| 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 |
Similar Standards
| 
