PROPERTY |
AIR |
WATER |
COMPARISON |
| Density | 0.08 per cu.ft. |
62.4 - 64.0 |
800 TimesDenser |
| Compressible? | Yes |
No |
Air Varies/Water Constant |
| Light Speed | 180,000 MPH |
135,000 MPH |
25% Slower in Water |
| Absorption | Low |
High |
Color Absorbed Rapidly |
| Speed of Sound | 1125 ft. per sec. |
4900 |
>4 Times Faster |
| Thermal Conductivity | 0.17 |
3.86 - 4.12 |
22 - 24 Times Faster |
| Heat Capacity | 0.24 |
0.94 - 1.0 |
4 Times Greater |
| ATA to Depth (ATA - 1) x 33 = Depth |
| ATA to PSIg (ATA - 1) x 14.7 = PSIg |
| Depth to PSIg Depth x 0.445 = PSIg |
| Depth to ATA Depth + 33 ÷ 33 = ATA |
| PPM to % Move the decimal 4 places to the left OR ÷ by 10,000 |
| PSIg to Depth PSIg ÷ 0.445 = Depth |
| SAC= Air Used (PSI) @ Given Depth, x33, then ÷ by the depth +33 |
| PSIg to ATA PSIg + 14.7 ÷ 14.7 = ATA |
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