Fire Hose definition CE certification: Fire hose is used to transport high-pressure water hose or fire retardant foam liquid. Description: The traditional fire hose lined with rubber, the appearance of bread wrapped in a linen braid. Advanced fire hose is made of polyurethane and other polymeric materials. Fire hose ends have metal joints, can be connected to another rubber hose, polyurethane hose, PVC fire hose to extend the distance between the root zone water or connect nozzle to increase the pressure of the liquid jet. Please consult Dekay certification. Fire Hose test methods detailed 3.1 3.1.1 Sample sample length not less than 1.20 m. The number of samples for three. 3.2 3.2.1 measuring the inside diameter hose inside diameter plug. Plug made of metal, the structure shown below. Plug dimensions and tolerances specified in Table 5. 3.2.2 measuring diameter, cut the ends first flush samples, and then measuring its ends with a feeler gauge. 3.3.1 3.3 weight per unit length, said the sample weight. The weight ratio of the sample length is the weight per unit length of hose. 3.4 3.4.1 test water seepage amount of water for the town. Water temperature was 15 ~ 30 ℃. 3.4.2 Attach one end of the sample and the water phase, and the other end closed, keep the sample flat. Within two minutes the sample was filled with water, and then uniformly in one minute to boost 1.1 specified operating pressure and holding pressure 16 minutes. From packing the first 16 minutes from the start, with the provisions of Article 3.6 b 1 minute catchment tank, which was the amount of water that is collected in the sample water volume. When testing, the sample should be used based on the wire or other suitable methods prevent seepage test length of 1 m outside the inflow tank, seepage within the entire set and the length of the test tank. In addition, the sample must not touch. Please consult Dekay certification. 3.4.3 Starting from packing the first 16 minutes, check whether the sample hole. Perforations to determine whether the water column ejected prevail. 3.5 3.5.1 straight state burst pressure burst pressure water volume end of the test, the pressure rises evenly specified in Table 4 straight state burst pressure, pressure for 5 seconds, the specimen shall be broken. Boost for 30 to 60 seconds. 3.5.2 state song bursting pressure relief measure the amount of water seepage after completion, the sample is bent inside of the arc radius of 700 mm. Should make a folding sample in the outermost arc. The pressure was increased uniformly specified in Table 4 state song burst pressure, the specimen shall be broken. Boost for 30 to 60 seconds. 3.5.3 folded state bursting pressure relief measure the amount of water seepage after completion, the sample from the central fold, the sample Qi head together and secure. The pressure was increased uniformly specified in Table 4 fold state burst pressure, pressure for 5 seconds, the specimen shall not rupture. Boost for 30 to 60 seconds.