1 The Committee, at its eighty-sixth session (27
May to 5 June 2009), having considered the proposal by the Sub-Committee
on Fire Protection, at its fifty-third session, recognized the need
for guidelines on the method to determine the NOAEL and LOAEL values
referred to in the Revised Guidelines for the approval of equivalent
fixed gas fire-extinguishing systems, as referred to in SOLAS 74,
for machinery spaces and cargo pump-rooms (MSC/Circ.848) and the Amendments to the Revised Guidelines (MSC.1/Circ.1267), and approved Guidelines
on determining the no observed adverse effect level (NOAEL) and lowest
observed adverse effect level (LOAEL) values for halocarbon fire-extinguishing
agents, as set out in the annex.
2 Member Governments are invited to apply the
annexed Guidelines when approving fixed gas fire-extinguishing systems
in accordance with MSC/Circ.848 and MSC.1/Circ.1267 on or after 29 May 2009
and bring them to the attention of ship designers, shipowners, equipment
manufacturers, test laboratories and other parties concerned.