单选题
Which method listed below is acceptable by classification society to perform hose testing to weather tight hatch covers and closing appliances（）
发布日期：2021-03-22
This is to be carried out at a maximum distance of 1,5m with a hose pressure not less than 2,0 kgf/cm2. The nozzle diameter is not to be less than 12mm.
This is to be carried out at a maximum distance of 1,5m with a hose pressure not less than 3,5 kgf/cm2. The nozzle diameter is not to be less than 5mm.
This is to be carried out at a maximum distance of 1,5m with a hose pressure not less than 4,0 kgf/cm2. The nozzle diameter is not to be less than 8mm.
This is to be carried out at a maximum distance of 2,0m with a hose pressure not less than 2,0 kgf/cm2. The nozzle diameter is not to be less than 12mm.
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