UL 8:2016 pdf download.Water Based Agent Fire Extinguishers.
31.2 An extinguisher charged to its rated capacity at 21 ±3°C (70 ±5°F) is to be held In a vertical position, with the discharge nozzle in the horizontal position approximately 0.9 m (3 ft) from the floor or the ground. The extinguisher then is to be discharged, and the duration to gas point and amount of agent solution discharged reCorded.
31.3 When the gas point is not readily determined in the test specified in 31.2, an extinguisher charged with its rated capacity of agent solution and expellant gas is to be discharged into a container for the minimum required effective duration specified in the Standard for Rating and Fire Testing of Fire Extinguishers, ANSI/UL 711 CANULC•S508, for the appropriate Class A or Class B rating, and then discharged elsewhere for the remainder of the discharge. The weight of agent solution discharged into the centainer shall be not greater than 95 percent of the total amount discharged.
32 Rate of Flow Test
32.1 An extinguisher shall be discharged to determine the rate of flow al 21 ±3°C (70 ±5°F) and shall be consistent, as evidenced by the results of three consecutive tests riot varying more than 10 percent from their mean value.
32.2 An extinguisher charged with its rated capacity is to be decharged for a period of two-thirds of its average duration at 21 ±3CC (70 ±5°F). rounded to the nearest second, with the nozzle held in a horizontal position. The rate of flow is to be calculated from the loss in weight during discharge. This test is to be used for identification and counterchecl purposes with the rate of flow established as ±10 percent of the mean of the three tests conducted.
31.3 When the gas point is not readily determined in the test specified in 31.2, an extinguisher charged with its rated capacity of agent solution and expellant gas is to be discharged into a container for the minimum required effective duration specified in the Standard for Rating and Fire Testing of Fire Extinguishers, ANSI/UL 711 CANULC•S508, for the appropriate Class A or Class B rating, and then discharged elsewhere for the remainder of the discharge. The weight of agent solution discharged into the centainer shall be not greater than 95 percent of the total amount discharged.
32 Rate of Flow Test
32.1 An extinguisher shall be discharged to determine the rate of flow al 21 ±3°C (70 ±5°F) and shall be consistent, as evidenced by the results of three consecutive tests riot varying more than 10 percent from their mean value.
32.2 An extinguisher charged with its rated capacity is to be decharged for a period of two-thirds of its average duration at 21 ±3CC (70 ±5°F). rounded to the nearest second, with the nozzle held in a horizontal position. The rate of flow is to be calculated from the loss in weight during discharge. This test is to be used for identification and counterchecl purposes with the rate of flow established as ±10 percent of the mean of the three tests conducted.
