ISO 12217-1 PDF

From: Transport Canada Introduction Stability is a fundamental aspect of vessel safety. To provide a level of assurance that new vessels have an accepted level of stability, amendments to the Small Vessel Regulations and Section 5 of the Construction Standards for Small Vessels — TP introduced in February require power-driven non-pleasure vessels more than 6 metres in length overall and not more than 15 tons gross tonnage or 12 metres in length if not measured for tonnage to comply with the requirements of ISO International Organization for Standardization standard Small craft — Stability and buoyancy assessment and categorization if their construction began after March 31, , unless they are: sailing vessels; multi-hulls, inflatable craft; built or converted for towing, dredging or lifting; or intended to carry more than 12 passengers or 1, kg of cargo. Purpose This document is intended to explain the concepts underlying the standard and how to select from the assessment option for your vessel from the various options found in ISO Word of caution Compliance with ISO , or any stability standard, provides a level of assurance that a vessel will retain its stability if operated within the prescribed operating conditions, however it does not guarantee total safety or freedom from risk of capsize or sinking. Alternatively, you may visit your nearest Transport Canada Centre to view the documents and make notes, although due to copyright restrictions you may not photocopy any part of the standards. References to other standards ISO standards refer to other standards to make it easier to update reference information.

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From: Transport Canada Introduction Stability is a fundamental aspect of vessel safety. To provide a level of assurance that new vessels have an accepted level of stability, amendments to the Small Vessel Regulations and Section 5 of the Construction Standards for Small Vessels — TP introduced in February require power-driven non-pleasure vessels more than 6 metres in length overall and not more than 15 tons gross tonnage or 12 metres in length if not measured for tonnage to comply with the requirements of ISO International Organization for Standardization standard Small craft — Stability and buoyancy assessment and categorization if their construction began after March 31, , unless they are: sailing vessels; multi-hulls, inflatable craft; built or converted for towing, dredging or lifting; or intended to carry more than 12 passengers or 1, kg of cargo.

Purpose This document is intended to explain the concepts underlying the standard and how to select from the assessment option for your vessel from the various options found in ISO Word of caution Compliance with ISO , or any stability standard, provides a level of assurance that a vessel will retain its stability if operated within the prescribed operating conditions, however it does not guarantee total safety or freedom from risk of capsize or sinking.

Alternatively, you may visit your nearest Transport Canada Centre to view the documents and make notes, although due to copyright restrictions you may not photocopy any part of the standards. References to other standards ISO standards refer to other standards to make it easier to update reference information. ISO defines four categories of operating conditions, called design categories, according to significant wave height and wind force see below.

A vessel is considered sufficiently stable to operate in the maximum conditions of a design category if it meets or exceeds the minimum requirements of a design category for resistance to taking on water. Sections 1 to 7 of the standard systematically explain ISO , from scope and definitions to the assessment procedure and interpreting the results. Annexes A to G describe how to carry out the various measurements and tests referred to in the standard.

Not all the measurements need to be made, however. Annex H summarizes the requirements for each option. Design Categories The demands on a vessel to right itself increase as its operating environment becomes more extreme. ISO has established four design categories based on wave height and wind force. A vessel is assigned the highest design category for which it meets all of the requirements. Design Category.

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