ISO 11812 pdf download,Small craft — Watertight cockpits and quick-draining cockpits
1 Scope
This International Standard specifies requirements for cockpits and recesses to be designated either as “watertight” or as “quick-draining” on small craft of hull length up to 24 m. It does not set requirements for the size and shape of a cockpit or recess, nor when or where it shall be used. It only considers draining by gravity, and not by pumping or other methods. NOTE 1 The term “quick-draining cockpit” has been chosen to differentiate from the common understanding of “self-draining cockpit” where water may be drained overboard in certain conditions, but without specified draining speed, height of bottom or sill, etc. NOTE 2 Examples of single-plane cockpit bottoms are given in informative annex A.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 8666:— 1) , Small craft — Principal data ISO 9093-1:1994, Small craft — Seacocks and through-hull fittings — Part 1: Metallic ISO 9093-2:— 1) , Small craft — Seacocks and through-hull fittings — Part 2: Non-metallic ISO 12216:— 1) , Small craft — Windows, portlights, hatches, deadlights and doors — Strength and tightness requirements ISO 12217-1:— 1) , Small craft — Stability and buoyancy assessment and categorization — Part 1: Non-sailing boats of hull length greater than or equal to 6 m ISO 12217-2:— 1) , Small craft — Stability and buoyancy assessment and categorization — Part 2: Sailing boats of hull length greater than or equal to 6 m
3 Terms and definitions
For the purposes of this International Standard, the following terms and definitions apply. 3.1 design categories description of the sea and wind conditions for which a boat is assessed to be suitable NOTE The following design categories apply: – A: Ocean: Designed for extended voyages where conditions may exceed wind force 8 (Beaufort scale) and significant wave heights of 4 m and above, and vessels largely self-sufficient; but excluding abnormal conditions such as hurricanes. – B: Offshore: Designed for offshore voyages where conditions up to and including wind force 8 and significant wave heights up to and including 4 m may be experienced; – C: Inshore: Designed for voyages in coastal waters, large bays, estuaries, lakes and rivers where conditions up to and including wind force 6 and significant wave heights up to and including 2 m may be experienced; – D: Sheltered waters: Designed for voyages in close coastal waters, small bays, lakes, rivers and canals where conditions up to and including wind force 4 and maximum wave heights up to and including 0,3 m may be experienced. 3.2 length of hull L H length of the hull according to ISO 8666 NOTE Length of hull is expressed in metres. 3.3 maximum beam B max overall beam of monohull or multihull craft according to ISO 8666 NOTE Maximum beam is expressed in metres. 3.4 waterline WL waterline in the fully loaded ready-for-use condition 3.5 freeboard amidships F M freeboard at mid-waterline in fully loaded ready-for-use condition according to ISO 8666 3.6 sailing boat boat designed to use sails as its primary means of propulsion, as defined in ISO 12217-2 3.7 non-sailing boat boat not designed to use sails as primary means of propulsion, as defined in ISO 12217-1 3.8 cockpit and recess any area that may retain water, however briefly, due to rain, waves, boat heeling, etc.