MSC.1-Circ.1169 - Unified Interpretations Of Solas Chapter Ii-2 (Secretariat)

MSC/Circ.1169 1 June 2005

UNIFIED INTERPRETATIONS OF SOLAS CHAPTER II-2
1 The Maritime Safety Committee, at its eightieth session (11 to 20 May 2005), with a view to providing more specific guidance for vague expressions such as to the discretion of the Administration, which are open to different interpretations contained in IMO instruments, approved the unified interpretations of SOLAS chapter II-2 prepared by the Sub-Committee on Fire Protection, as set out in the annex.
2 Member Governments are invited to use the annexed unified interpretations as guidance when applying relevant provisions of SOLAS chapter II-2 to fire protection construction, installation, arrangements and equipment to be installed on board ships on or after 13 May 2005 and to bring the unified interpretations to the attention of all parties concerned.
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MSC/Circ.1169
I:\CIRC\MSC\1169.DOC
ANNEX
UNIFIED INTERPRETATIONS OF SOLAS CHAPTER II-2
Regulation II-2/4.5.3.3 Safety devices in venting systems
1 Ullage openings do not include cargo tank openings that are fitted with standpipe arrangements with their own manually operated shutoff valves.
2 Examples include the common 2.54 cm (1") and 5.08 cm (2") diameter standpipe arrangements that are used for sampling, monitoring or measuring of ullage/temperature/interface, oxygen, liquid and hand dipping in the cargo tank.
Regulation II-2/9.7.1.1 Ventilation systems
1 Combustible gaskets in flanged ventilation duct connections are not permitted within 600 mm of an opening in an A or B class divisions and in ducts required to be of A class construction.
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