ClassNK- TEC 0906 ClassNK issues Technical Information TEC- 0906 regarding the devices to prevent the passage of flame into cargo tanks in chemical and oil/chemical tankers.The design, testing and location of devices(flame screen, flame arrester, high velocity device etc.) to prevent the passage of flame into cargo tanks in chemical and oil/chemical tankers prescribed in MSC/Circ.677 was amended to MSC/Circ.1324 as follows.1. AmendmentThe devices on chemical and oil/chemical tankers certified for the carriage of chemicals which are required to follow the apparatus group IIB(including no description of apparatus group) or IIC, based on the apparatus group assigned as per column i" in the table of the IBC Code, Chapter 17, should be tested with the ethylene(apparatus Group IIB) or hydrogen(apparatus Group IIC). Accordingly, it is necessary to install the suitable devices for the carried chemicals as the amendment.2. Application(1) New shipsThe MSC/Circ.1324 is applied to the ships constructed on or after 1 January 2013.(2) Existing shipsThe MSC/Circ.1324 is applied to the existing ships constructed before 1 January 2013, no later than the first scheduled dry-docking carried out on or after 1 January 2013. The existing ships are required to comply with following (i) or (ii).(i) Exchange the devicesIn case where ...
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