Annex - Amendments to the International Code for Fire Safety Systems (FSS Code)
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Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.457(101) - Amendments to the International Code for Fire Safety Systems (FSS Code) - (Adopted on 14 June 2019) - Annex - Amendments to the International Code for Fire Safety Systems (FSS Code)

Annex - Amendments to the International Code for Fire Safety Systems (FSS Code)

CHAPTER 15 INERT GAS SYSTEMS

2 Engineering specifications

2.2 Requirements for all systems

2.2.3.2 Inert gas lines

1 Paragraph 2.2.3.2.1 is replaced by the following:

"2.2.3.2.1 The inert gas main may be divided into two or more branches downstream of the non-return devices required by paragraph 2.2.3.1."

2 Paragraph 2.2.3.2.6 is replaced by the following:

"2.2.3.2.6 Arrangements shall be provided to enable the inert gas main to be connected to an external supply of inert gas. The arrangements shall consist of a 250 mm nominal pipe size bolted flange, isolated from the inert gas main by a valve and located downstream of the non-return valve. The design of the flange should conform to the appropriate class in the standards adopted for the design of other external connections in the ship's cargo piping system."

2.2.4 Indicators and alarms

3 Paragraph 2.2.4.2 is replaced by the following:

"2.2.4.2 Instrumentation shall be fitted for continuously indicating and permanently recording, when inert gas is being supplied:

  • .1 the pressure of the inert gas mains downstream of the non-return devices; and

  • .2 the oxygen content of the inert gas."


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