NMFC 57157 - UNGROUPED ARTICLES
Category: UNCATEGORIZED•Group ID: 0
Classification Details
Devices, terminal control, forced air distribution, see Note, item 57158, in boxes or crates, subject to Item 170 and having a density in pounds per cubic foot of:
Density-Based Classifications
| Sub | Description | Class |
|---|---|---|
| 1 | Less than 1 | 400 |
| 2 | 1 but less than 2 | 300 |
| 3 | 2 but less than 4 | 250 |
| 4 | 4 but less than 6 | 175 |
| 5 | 6 but less than 8 | 125 |
| 6 | 8 but less than 10 | 100 |
| 7 | 10 but less than 12 | 92.5 |
| 8 | 12 but less than 15 | 85 |
| 9 | 15 but less than 22.5 | 70 |
| 10 | 22.5 but less than 30 | 65 |
| 11 | 30 or greater | 60 |
Notes
Note 57158: NOTE-Applies on terminal devices for controlling air pressure, temperature or volume in forced air cooling or heating systems, with or without heating or cooling coils or electric resistance grids.