BS ISO 19897:2019 pdf free.Ships and marine technology一Marine evacuation systems一Testing under conditions of icing.
BS ISO 19897 1 Scope This document provides specifications for a test of marine evacuation systems (MES] under conditions of icing in support of the requirement in paragraph 6.2.2.1.8 of the International Life-saving Appliance (LSA] Code.2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.3.1 marine evacuation system MES appliance for the rapid transfer of persons from the embarkation deck of a ship to a floating survival craft by means of a passage (3.2) 3.2 passage designated connection between the embarkation station and the survival craft(s) which can be an inflatable or rigid slide, a vertical passage (3.4) or any other arrangement that can provide for safe transfer to survival crafts inclined passage angled [to the horizontal) inflatable or rigid passage (3.2], which provides access for persons to a floating platform (3.5) or directly into survival crafts 3.4 vertical passage passage (3.2) providing vertical controlled descent for persons to a floating platform (3.5) or directly into survival crafts 3.5 floating platform platform that may be fitted at the bottom of the passage (3.2) to hold evacuees awaiting entry to survival craft Note 1 to entry: In some system configurations, a survival craft may also serve as a platform.The reference device shall be positioned approximately 40 cm in front of the test set-up with the open side facing the water spraying direction. If the system to be tested exceeds more than 3 m in length, a reference device shall be used for every 3 m of the length. All critical parts of the stowage arrangement shall be exposed to the layer of icing in the simulated installed configuration, which shall include any designed anti-icing precautions as well as the reference device[s). When at least a 3,5 cm thick layer of icing has formed on the horizontal and vertical part of the reference device facing the spraying direction, the required icing conditions are considered to be accomplished. The system shall then be actuated and the deployment of the system initiated without failure. BS ISO 19897 pdf download.