46 C.F.R. § 176.810
(a) At each initial and subsequent inspection for certification, the owner or managing operator must be prepared to conduct tests and have the vessel ready for inspection of its fire protection equipment, including the following:
(b) The owner, managing operator, or a qualified servicing facility as applicable must conduct the following inspections and tests:
(1) Portable and semi-portable extinguishers must be inspected and maintained in accordance with NFPA 10 (incorporated by reference, see § 175.600 of this chapter) as amended here:
(2) For fixed-gas fire extinguishing systems, the inspections and tests required by Table 176.810(b) of this section, in addition to the tests required by 46 CFR 147.60 and 147.65. The owner or managing operator must provide satisfactory evidence of the required servicing to the marine inspector. If any of the equipment or records have not been properly maintained, a qualified servicing facility may be required to perform the required inspections, maintenance procedures, and hydrostatic pressure tests.
| Type system | Test |
|---|---|
| Carbon dioxide | Weigh cylinders. Recharge if weight loss exceeds 10 percent of weight of charge. Test time delays, alarms, and ventilation shutdowns with carbon dioxide, nitrogen, or other nonflammable gas as stated in the system manufacturer's instruction manual. Inspect hoses and nozzles to be sure they are clean. |
| Halon | Weigh cylinders. Recharge if weight loss exceeds 5 percent of weight of charge. If the system has a pressure gauge, also recharge if pressure loss (adjusted for temperature) exceeds 10 percent. Test time delays, alarms and ventilation shutdowns with carbon dioxide, nitrogen, or other nonflammable gas as stated in the system manufacturer's instruction manual. Inspect hoses and nozzles to be sure they are clean. |
| Dry Chemical (cartridge operated) | Examine pressure cartridge and replace if end is punctured or if determined to have leaked or to be in unsuitable condition. Inspect hose and nozzle to see if they are clear. Insert charged cartridge. Ensure extinguisher contains full charge. |
| Dry Chemical (stored pressure) | See that pressure gauge is in operating range. If not, or if the seal is broken, weigh or otherwise determine that extinguisher is fully charged with dry chemical. Recharge if pressure is low or if dry chemical is needed. |
| Foam (stored pressure) | See that pressure gauge, if so equipped, is in the operating range. If not, or if the seal is broken, weigh or otherwise determine that extinguisher is fully charged with foam. Recharge if pressure is low or if foam is needed. Replace premixed agent every 3 years. |
| Clean Agents (Halon replacements) | Same as Halon. |
[USCG-2012-0196, 81 FR 48298, July 22, 2016]