BS EN ISO 6185-3:2018 ISO 6185‑3:2014


Alternatively, sample individual inflated pieces of all the different types of the inflatable parts used in the boat may be tested provided they are exactly the same as the production type. For inflatable buoyancy tubes, the minimum length of the sample piece shall be no less than 1m


7.7.2.3 Overpressure test


Inflate each compartment of the buoyancy tube to 1,5 times the nominal pressure for 30 min. When separate compartments have common envelope parts (for example, internal partition bulkheads), these compartments shall be individually tested with adjacent compartments deflated. No damage or rupture shall occur and the boat shall be tested for airtightness as described in 7.7.2.4.


7.7.2.4 Airtightness test


Support or insulate the boat from the floor and do not expose it to any draught of air or direct sunlight. Inflate the boat (all compartments) for 30 min to a pressure of 1,2 times the nominal pressure (see 7.6) in order to pre-stretch the boat. Then reset the pressures to the nominal pressure for a further 30min period in order to stabilize conditions. Reset the pressures to the nominal pressure and record the ambient temperature and atmospheric pressure. Following a test period of 24 h, the pressure drop shall not be greater than 20 % in any compartment. Record the final ambient temperature and atmospheric pressure.


The temperature difference between the start of the test and the test readings shall not exceed ± 3 °C.


The atmospheric pressure difference between the start of the test and the test readings shall not exceed ± 1%.


For each rise or fall in ambient temperature of 1 °C, an allowance of 0,004 bar may be respectively subtracted from, or added to, the recorded boat pressure. 7.8 Maximum motor power


The maximum motor power, in kilowatts, for inboard and outboard boats shall be determined by the requirements of ISO 11592.


For waterjet driven boats, the engine maximum power rating determined above may be increased by 35%. NOTE


maximum motor power are entirely applicable to Type VII and Type VIII boats. 7.9 Man overboard prevention and recovery


All boats shall comply with the relevant clauses of ISO 15085, viz: slip resistant areas, foot stops, handholds, body support and handholds, means of reboarding, etc.


Where persons are seated on the buoyancy tubes, 2 handholds per person shall be provided, at least one of which shall be placed inboard of the vertical tangent to the tube, to assist persons against falling overboard.


NOTE Notwithstanding that the current version of ISO 15085 excludes inflatable boats, the requirements of


the above mentioned clauses are entirely applicable to Type VII and Type VIII boats. 7.10 Field of vision from the helm position The field of vision from the main helm position shall conform to the requirements of ISO 11591.


Notwithstanding that ISO11592 excludes certain types of inflatable boats, its methods of determining


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