How long is the service life of fire lay flat hose?

There are many kinds of lay flat hose on the market. Agricultural and fire lay flat hose are more common. In the process of making lay flat hose, the performance and quality of fire protection lay flat hose are more demanding, but there are also some limitations on its service life. How long do we need to know through the following information?
One way to calculate the service life of lay flat hose is to see the quality of lay flat hose: to judge whether lay flat hose meets the fire extinguishing requirements, we can judge whether the exterior surface is damaged or not; whether the caliber and length are matched with the hydrant; whether the inner material is ageing or not, which can be specifically compared with the national product standard GB 6246-2011 “lay flat hose”. Although there is no time limit for replacement in China, it should be timely replaced according to the actual quality of lay flat hose products.
In daily management, lay flat hose can be selected every six months to test its compressive strength and time, and it is recommended to replace lay flat hose which has been used for 12 years. Another is that it needs to be tested once a year, and the service life is five years. That is to say, even if it has not been used once, it needs to be replaced after five years, in order to ensure that the application quality of lay flat hose is good.