Circular Letter MSC/Circ.1120
UNIFIED INTERPRETATIONS OF SOLAS CHAPTER II-2, THE FSS CODE, THE FTP CODE AND RELATED FIRE TEST PROCEDURES

ANNEX.
UNIFIED INTERPRETATIONS OF SOLAS CHAPTER II-2, THE FSS CODE, THE FTP CODE AND RELATED FIRE TEST PROCEDURES

INTERPRETATIONS OF VAGUE EXPRESSIONS AND OTHER VAGUE WORDING WITH REFERENCES TO SOLAS CHAPTER II-2, AS AMENDED BY RESOLUTION MSC.99(73)

- Examples of repairs, alterations and modifications

- Devices in pantries or isolated pantries containing no cooking appliances

- Application of "light-weight constructions"

- Explanations to communication systems

- Adhesives in C class construction

- Explanation for control stations

- Devices in main pantries, pantries containing cooking appliances and galleys

- Use of fuel oil having a flashpoint of 43°C or less and crude oil or slop for tanker boilers

- Controls for remote operation of the valve for emergency generator fuel tank

- Position of air pipe outlets

- Arrangements for other flammable oils

- Electric Radiators

- Waste receptacles

- Surface protection of insulation

- Construction of cofferdams and prohibition of containment of cargo, wastes and goods

- Separation of cargo oil tanks

- Gastightness test for navigation bridge external doors and windows

- Area classification and selection of electrical equipment

- Reference to IEC 60092-502

- Meaning of closed ullage system

- Location of outlets and reference to MSC/Circ.677 and MSC/Circ.731

- Emergency lighting

- Monitoring the concentration of hydrocarbon gases in cargo pump-rooms on oil tankers

- Bilge level monitoring devices

- Location of ventilation controls in category A machinery spaces

- Materials used on passenger ships for bulkheads of accommodation spaces as defined in regulation 3.1

- Fire protection materials for cargo ships

- Meaning of cold service systems

- Calorific value

- Application to materials used on surfaces of bulkheads, ceilings and linings

- Application to materials used for bulkheads and on surfaces of bulkheads, ceilings and linings

- Degree of protection and audibility of two-way portable telephone apparatus used in special cargo spaces

- Equally effective local ventilation closing arrangements for control stations

- Location of ventilation controls in category A machinery spaces

- Construction and location of draught stops

- Arrangement of exhaust fans for smoke extraction systems

- Main vertical zones and horizontal zones

- Construction of extended bulkhead behind continuous ceilings or linings

- Bulkheads within a main vertical zone

- Electrical distribution boards

- Devices in diet kitchens

- Electrical distribution boards

- Construction and arrangements of saunas

- Interpretation of machinery spaces having little or no fire risk

- Increased area of public spaces

- Increased area of public spaces

- Interpretation of machinery spaces having little or no fire risk

- Electrical distribution boards

- Construction and arrangements of saunas

- Construction of protected stairways

- Construction of dumb-waiters

- Electrical distribution boards

- Construction and arrangements of saunas

- Interpretation of machinery spaces having little or no fire risk

- Reference to resolution A.753(18)

- Prevention of heat transmission by insulation and structural details for drainage

- Reference to MSC/Circ.541

- Doors in divisions of a higher standard and fire testing of watertight doors

- Lift door indicators located in continuously manned central control station

- Type of means of manual closing of fire dampers

- Reference is made to the following ISO standards:

- Doors in divisions of a higher standard

- Doors in fire-resisting divisions of cargo ships

- Definition of free sectional area

- Type of means of closing

- Ventilation system penetrating decks

- Meaning of lower end of the duct and upper end of the duct in galley range ducts

- Location of hatches for inspection and cleaning in galley range ducts

- Prevention of freezing in pipes

- Location of hydrant in machinery spaces

- Electrical cables for the emergency fire pump

- Connection of a pump to fire main

- Storage rooms for fire-extinguishing medium

- Fire extinguishing arrangements in machinery spaces

- Relaxation of fire-extinguishing equipment for cargo ships

- Definition of areas to be protected by local application systems (internal combustion machinery)

- Definition of areas to be protected by local application systems (boiler fronts)

- Definition of areas to be protected by local application systems (incinerators)

- Cargo spaces for which a fixed fire-extinguishing system is ineffective and reference to MSC/Circ.671

- Equivalent protection

- Ships carrying dangerous goods on deck only

- Insulation of aluminium decks and interpretation of load-bearing divisions

- Area classification and selection of electrical equipment

- Electrical equipment in areas next to cargo tank ventilation outlets which permit flow of small volumes of vapour

- Direct access to stairway enclosures

- Means of escape

- Size of enclosed means of escape in atriums

- Locking arrangements and accessibility to embarkation decks

- Arrangement of means of escape (passenger ships)

- Arrangement of means of escape (cargo ships)

- Arrangement of escape routes in ro-ro cargo spaces

- Evacuation Analysis

- Fire control plans

- Meaning of purpose-built container spaces

- Extended meaning of ro-ro spaces

- Water supplies for open-top container spaces in ships

- Hydrants for dangerous goods

- Acceptance of high expansion foam systems in case of dangerous goods

- Sources of Ignition

- Ventilation requirements for individual cargoes and open-top container cargo holds

- Degree of protection of exhaust fans and use of wire mesh guards

- Arrangements of bilge drainage systems for cargo spaces

- Type and suitability of protective clothing

- Certification of special dangerous goods

- Horizontal fire zone concept

- Capacity of ventilation systems

- Alarm in case of loss of ventilation capacity

- Arrangement and construction of ventilation ducts on cargo ships

- Degree of protection of electrical equipment 450 mm above deck

- Degree of protection of electrical equipment in exhaust ventilation ducts and of exhaust fans

- Arrangements for disconnecting detector sections during loading and unloading

- Sizing of scuppers and drainage pumps

- Portable fire extinguishers on weather decks used as ro-ro cargo space

INTERPRETATIONS OF VAGUE EXPRESSIONS, OTHER VAGUE WORDING AND REFERENCES IN THE FIRE SAFETY SYSTEMS (FSS) CODE

- Personal Equipment

- Fire

- Equivalents of fire extinguishers

- Recharging of spare charges

- Separation of spaces

- Means for checking the quantity of medium in containers

- Certain spaces for which the automatic warning of release of the extinguishing medium is required

- Low pressure CO₂ systems

- Areas for increased application rates

- Dry pipe systems in saunas

- Definition of nominal area

- Acceptable activating arrangements

- Relevant definitions

- Testing of detectors within cold spaces

- Calculation of intervals

- Response time for fans

- Heating of diesel driven power sources and other means of starting

- Size of landings and intermediate landings

- Capacity, use and handling of deck foam systems

- Foam systems positions of aft monitors

- Application to tankers

- Interpretation or reference Chapter Paragraph

INTERPRETATIONS OF VAGUE EXPRESSIONS, OTHER VAGUE WORDING AND REFERENCES IN THE FIRE TEST PROCEDURE (FTP) CODE AND FIRE TEST PROCEDURES REFERRED TO IN THE CODE

- Fire Test Procedure Code

- Non-combustibility test

- Smoke and toxicity test

- Test for A, B, and F class divisions including windows, fire dampers, pipe penetrations and cable transits

- Test for surface flammability

- Test for primary deck coverings

APPENDIX. EXPLANATORY SKETCHES

SOLAS Chapter II-2

Fire Safety Systems Code