14.2.6 Test for second characteristic numeral 6 with the 12,5 mm nozzle The test is made by spraying the enclosure from all practicable directions with a stream of water from a standard test nozzle as shown in figure 6. The conditions to be observed are as follows: – internal diameter of the nozzle: 12,5 mm; – delivery rate: 100 l/min ± 5 %; – water pressure: to be adjusted to achieve the specified delivery rate; – core of the substantial stream: circle of approximately 120 mm diameter at 2,5 m distance from nozzle; – test duration per square metre of enclosure surface area likely to be sprayed: 1 min; – minimum test duration: 3 min; – distance from nozzle to enclosure surface: between 2,5 m and 3 m. 14.2.7 Test for second characteristic numeral 7: temporary immersion between 0,15 m and 1 m The test is made by completely immersing the enclosure in water in its service position as specified by the manufacturer so that the following conditions are satisfied