Final answer:
While there's no universal replacement period stated solely in months for fabric-jacketed hoses, it is vital to follow manufacturer guidelines or industry standards like those from the NFPA, which calls for annual inspections and checks after each use.
Step-by-step explanation:
The replacement frequency for fabric-jacketed hoses can vary based on manufacturer recommendations and application. It's essential to follow the guidelines provided by the manufacturer or to adhere to industry standards, such as those set by the National Fire Protection Association (NFPA) when applicable. For certain uses like in fire fighting equipment, the NFPA recommends inspecting all fire hose annually and after each use; however, a standard replacement period is not dictated solely by months but is determined by the hose condition and the outcome of the inspections.
In scenarios where a specific month-based replacement period is required, such as in certain industrial or automotive applications, the manufacturer's guidance or an established maintenance schedule should be consulted. Without clear context or industry-specific guidelines to answer the question, it is not possible to provide an exact number of months for when fabric-jacketed hoses must be changed, as the replacement period might vary.