How often must I have my fire extinguishers hydrostatically tested?
The following table illustrates how frequently different types of fire extinguishers must be hydrostatically tested.
Dry Chemical fire extinguishers mounted on vehicles (trucks, fork-lifts, tractors, boats, aircraft, etc.) must be hydrostatically tested every 5 years.
Hydrostatic Test Interval for Extinguishers
|
Extinguisher Type |
Test Interval |
|---|---|
| Stored Pressure Water and/or Antifreeze/Loaded Stream |
5 |
| AFFF (Aqueous Film Forming Foam) |
5 |
| FFFP (Film Forming Fluoroprotein Foam) |
5 |
| Wet Chemical |
5 |
| Dry Chemical With Stainless Steel Shells |
5 |
| Carbon Dioxide |
5 |
| Dry Chemical, Stored Pressure with Mild Steel Shells, Brazed Brass Shells, or Aluminum Shells |
12 |
| Dry Chemical, Cartridge and Cylinder-Operated, with Mild Steel Shells |
12 |
| Dry Powder, stored pressure, cartridge or cylinder operated with Mild Steel Shells |
12 |
| Halogenated Agents |
12 |
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