NFPA 1963-1998 Standard for Fire Hose Connections. 2-9 Rough Usage. 2-9.1 Couplings shall be capable of being dropped up to 6 ft (1.8 m) without deformation or damage that impairs opera- tion. They shall be tested in accordance with 2-9.2 to prove compliance. 2-9.2 Couplings shall be installed on approximately 10-ft (3-m) lengths of fire hose. The couplings shall be coupled together, forming a loop in the hose. The coupling assem- bly shall then be dropped onto a concrete surface from a height of 6 ft (1.8 m) so as to land as squarely as possible on the swivel ring. This shall be repeated three times. The couplings shall operate freely and shall show no signs of deformation when inspected inside and outside. Samples showing distortion or binding of the swivel mechanism shall be judged acceptable if the mechanism can be cor- rected to turn freely and evenly when straightened by the use of a hammer. Samples developing cracks or broken sections either before or after attempts to straighten dam- aged portions shall be deemed as having failed the test. The coupling/hose assembly shall withstand the service test pressure of the hose without leakage or failure. 2-10 Coupling Retention. 2-10.1 Couplings shall remain on the hose without movement up to the rated burst pressure of the hose. They shall be tested in accordance with 2-10.2 to prove compliance. 2-10.2 The couplings shall be attached to a 3-ft (1-m) length of hose. The hose and coupling as an assembly shall be pres- surized to the service pressure of the hose for 1 minute, and then the pressure shall be released. The position of the cou- pling with relation to the hose shall be marked. The pressure in the hose/coupling assembly shall then be raised at a rate of 300 psi to 1000 psi (2068 kPa to 6895 kPa) per minute until the rated burst pressure of the hose is reached. The pressure shall be held for a minimum of 15 seconds but not longer than 60 seconds. The hose shall show no signs of movement from the coupling. NFPA 1963 pdf download.
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