Halocarbon Agent

Halocarbon Agent

Definition(s)

Halocarbon Agent

Halocarbon agent is a fire-extinguishing medium consisting of one or more carbon atoms linked to one or more Halogen atoms from the elements bromine, chlorine, fluorine and iodine. Source: IMO MSC.1/Circ.1316, Guidelines on determining the no observed adverse effect level (NOAEL) and lowest observed adverse effect level (LOAEL) values for halocarbon fire-extinguishing agents, 10 June 2009, International Maritime Organization. Regulatory Guidance  
Adverse Physiological or Toxicological Effects

Adverse Physiological or Toxicological Effects

Definition(s)

Adverse Physiological or Toxicological Effects

Adverse physiological or toxicological effects are considered to be evidence of cardiac sensitization, for the purposes of approving halocarbon fire-extinguishing agents in accordance with MSC/Circ.848 and MSC.1/Circ.1267. Source: IMO MSC.1/Circ.1316, Guidelines on determining the no observed adverse effect level (NOAEL) and lowest observed adverse effect level (LOAEL) values for halocarbon fire-extinguishing agents, 10 June 2009, International Maritime Organization. Regulatory Guidance
Design Filling Rate

Design Filling Rate

Definition(s)

Design Filling Rate

Design filling rate is the minimum filling used during the approval tests in accordance with appendix 2. Source: IMO MSC.1/Circ.1271, Guidelines for the approval of high-expansion foam using inside air for the protection of machinery spaces and cargo pump-rooms, 4 June 2008, International Maritime Organization. Regulatory Guidance  

Design Filling Rate

Design filling rate is at least the minimum nominal filling rate used during the approval tests.  <fixed foam fire-extinguishing systems>. Source: IMO Resolution MSC.327(90), amendments to the International Code for Fire Safety Systems, 25 May 2012, International Maritime Organization. Regulatory Guidance  
Nominal Filling Time

Nominal Filling Time

Definition(s)

Nominal Filling Time

Nominal filling time is the ratio of the height of the protected space to the nominal filling rate, i.e., expressed in minutes. Source: IMO MSC.1/Circ.1271, Guidelines for the approval of high-expansion foam using inside air for the protection of machinery spaces and cargo pump-rooms, 4 June 2008, International Maritime Organization. Regulatory Guidance  

Nominal Filling Time

Nominal filling time is the ratio of the height of the protected space to the nominal filling rate, i.e. expressed in minutes. <fixed foam fire-extinguishing systems>. Source: IMO Resolution MSC.327(90), amendments to the International Code for Fire Safety Systems, 25 May 2012, International Maritime Organization. Regulatory Guidance  
Nominal Filling Rate

Nominal Filling Rate

Definition(s)

Nominal Filling Rate

Nominal filling rate is the ratio of nominal foam production to the area, i.e., expressed in m/min. Source: IMO MSC.1/Circ.1271, Guidelines for the approval of high-expansion foam using inside air for the protection of machinery spaces and cargo pump-rooms, 4 June 2008, International Maritime Organization. Regulatory Guidance  

Nominal Filling Rate

Nominal filling rate is the ratio of nominal foam production to the area, i.e. expressed in m2/min. <fixed foam fire-extinguishing systems>. Source: IMO Resolution MSC.327(90), amendments to the International Code for Fire Safety Systems, 25 May 2012, International Maritime Organization. Regulatory Guidance  
Nominal Foam Production

Nominal Foam Production

Definition(s)

Nominal Foam Production

Nominal foam production is the volume of foam produced per time unit, i.e., nominal flow rate times nominal foam expansion ratio, expressed in m3/min. Source: IMO MSC.1/Circ.1271, Guidelines for the approval of high-expansion foam using inside air for the protection of machinery spaces and cargo pump-rooms, 4 June 2008, International Maritime Organization. Regulatory Guidance  

Nominal Foam Production

Nominal foam production is the volume of foam produced per time unit, i.e. nominal flow rate times nominal foam expansion ratio, expressed in m3/min. <fixed foam fire-extinguishing systems>. Source: IMO Resolution MSC.327(90), amendments to the International Code for Fire Safety Systems, 25 May 2012, International Maritime Organization. Regulatory Guidance  
Nominal Foam Expansion Ratio

Nominal Foam Expansion Ratio

Definition(s)

Nominal Foam Expansion Ratio

Nominal foam expansion ratio is the ratio of the volume of foam to the volume of foam solution from which it was made. Source: IMO MSC.1/Circ.1271, Guidelines for the approval of high-expansion foam using inside air for the protection of machinery spaces and cargo pump-rooms, 4 June 2008, International Maritime Organization. Regulatory Guidance  

Nominal Foam Expansion Ratio

Nominal foam expansion ratio is the ratio of the volume of foam to the volume of foam solution from which it was made, under non-fire conditions, and at an ambient temperature of e.g. around 20ºC. <fixed foam fire-extinguishing systems>. Source: IMO Resolution MSC.327(90), amendments to the International Code for Fire Safety Systems, 25 May 2012, International Maritime Organization. Regulatory Guidance  
Nominal Application Rate

Nominal Application Rate

Definition(s)

Nominal Application Rate

Nominal application rate is the nominal flow rate per area expressed in l/min/m2. Source: IMO MSC.1/Circ.1271, Guidelines for the approval of high-expansion foam using inside air for the protection of machinery spaces and cargo pump-rooms, 4 June 2008, International Maritime Organization. Regulatory Guidance  

Nominal Application Rate

Nominal application rate is the nominal flow rate per area expressed in l/min/m2. <fixed foam fire-extinguishing systems>. Source: IMO Resolution MSC.327(90), amendments to the International Code for Fire Safety Systems, 25 May 2012, International Maritime Organization. Regulatory Guidance  
Nominal Flow Rate

Nominal Flow Rate

Definition(s)

Nominal Flow Rate

Nominal flow rate is the foam solution flow rate expressed in l/min. Source: IMO MSC.1/Circ.1271, Guidelines for the approval of high-expansion foam using inside air for the protection of machinery spaces and cargo pump-rooms, 4 June 2008, International Maritime Organization. Regulatory Guidance  

Nominal Flow Rate

Nominal flow rate is the foam solution flow rate expressed in l/min. <fixed foam fire-extinguishing systems>. Source: IMO Resolution MSC.327(90), amendments to the International Code for Fire Safety Systems, 25 May 2012, International Maritime Organization. Regulatory Guidance  
Inside Air Foam System

Inside Air Foam System

Definition(s)

Inside Air Foam System

Inside air foam system is a fixed high-expansion foam fire-extinguishing system with foam generators located inside the protected space and drawing air from that space. A high-expansion foam system using inside air consists of both the foam generators and the foam concentrate. Source: IMO MSC.1/Circ.1271, Guidelines for the approval of high-expansion foam using inside air for the protection of machinery spaces and cargo pump-rooms, 4 June 2008, International Maritime Organization. Regulatory Guidance  

Inside Air Foam System

Inside air foam system is a fixed high-expansion foam fire-extinguishing system with foam generators located inside the protected space and drawing air from that space. <fixed foam fire-extinguishing systems>. Source: IMO Resolution MSC.327(90), amendments to the International Code for Fire Safety Systems, 25 May 2012, International Maritime Organization. Regulatory Guidance  
Foam Generators

Foam Generators

Definition(s)

Foam Generators

Foam generators are discharge devices or assemblies through which foam solution is aerated to form foam that is discharged directly into the protected space, typically consisting of a nozzle or set of nozzles and a casing. The casing is typically made of perforated steel / stainless steel plates shaped into a box that enclose the nozzle(s). Source: IMO MSC.1/Circ.1271, Guidelines for the approval of high-expansion foam using inside air for the protection of machinery spaces and cargo pump-rooms, 4 June 2008, International Maritime Organization. Regulatory Guidance  

Foam Generators

Foam generators are discharge devices or assemblies through which high-expansion foam solution is aerated to form foam that is discharged into the protected space. Foam generators using inside air typically consist of a nozzle or set of nozzles and a casing. The casing is typically made of perforated steel/stainless steel plates shaped into a box that enclose the nozzle(s). Foam generators using outside air typically consist of nozzles enclosed within a casing that spray onto a screen. An electric, hydraulic or pneumatically driven fan is provided to aerate the solution. <fixed foam fire-extinguishing systems>. Source: IMO Resolution MSC.327(90), amendments to the International Code for Fire Safety Systems, 25 May 2012, International Maritime Organization. Regulatory Guidance
Foam Mixing Rate

Foam Mixing Rate

Definition(s)

Foam Mixing Rate

Foam mixing rate is the percentage of foam concentrate mixed with water forming the foam solution. Source: IMO MSC.1/Circ.1271, Guidelines for the approval of high-expansion foam using inside air for the protection of machinery spaces and cargo pump-rooms, 4 June 2008, International Maritime Organization. Regulatory Guidance  
Foam Concentrate

Foam Concentrate

Definition(s)

Foam Concentrate

Foam concentrate is the liquid which, when mixed with water in the appropriate concentration forms a foam solution. Source: IMO MSC.1/Circ.1271, Guidelines for the approval of high-expansion foam using inside air for the protection of machinery spaces and cargo pump-rooms, 4 June 2008, International Maritime Organization. Regulatory Guidance  

Foam Concentrate

Foam concentrate is a liquid which, when mixed with water in the appropriate concentration, gives a foam solution. Source: IMO MSC.1/Circ.1312, Revised Guidelines for the performance and testing criteria, and surveys of foam concentrates for fixed fire-extinguishing systems, 10 June 2009, International Maritime Organization. Regulatory Guidance  

Foam Concentrate

Foam concentrate is a liquid which, when mixed with water in the appropriate concentration forms a foam solution. <fixed foam fire-extinguishing systems>. Source: IMO Resolution MSC.327(90), amendments to the International Code for Fire Safety Systems, 25 May 2012, International Maritime Organization. Regulatory Guidance
Foam Solution

Foam Solution

Definition(s)

Foam Solution

Foam solution is a solution of foam concentrate and water. Source: IMO MSC.1/Circ.1271, Guidelines for the approval of high-expansion foam using inside air for the protection of machinery spaces and cargo pump-rooms, 4 June 2008, International Maritime Organization. Regulatory Guidance Source: IMO MSC.1/Circ.1312, Revised Guidelines for the performance and testing criteria, and surveys of foam concentrates for fixed fire-extinguishing systems, 10 June 2009, International Maritime Organization. Regulatory Guidance  

Foam Solution

Foam solution is a solution of foam concentrate and water. <fixed foam fire-extinguishing systems>. Source: IMO Resolution MSC.327(90), amendments to the International Code for Fire Safety Systems, 25 May 2012, International Maritime Organization. Regulatory Guidance  
Design Application Density

Design Application Density

Definition(s)

Design Application Density (g/m³)

Design application density (g/m³) is the mass of an aerosol forming composition per m³ of the enclosure volume required to extinguish a specific type of fire, including a safety factor of 1.3 times the test density. Source: IMO MSC.1/Circ.1270, Revised Guidelines for the approval of fixed aerosol fire-extinguishing systems equivalent to fixed gas fire-extinguishing systems, as referred to in SOLAS 74, for machinery spaces, 4 June 2008, International Maritime Organization. Regulatory Guidance  
Efficiency Coefficient

Efficiency Coefficient

Definition(s)

Efficiency Coefficient

Efficiency coefficient is the percentage (%) of aerosol forming composition actually discharged from a specific aerosol generator. It is determined by comparing the mass loss of a generator after discharge to its beginning mass. Source: IMO MSC.1/Circ.1270, Revised Guidelines for the approval of fixed aerosol fire-extinguishing systems equivalent to fixed gas fire-extinguishing systems, as referred to in SOLAS 74, for machinery spaces, 4 June 2008, International Maritime Organization. Regulatory Guidance  
Generator

Generator

Definition(s)

Generator

Generator is a device for creating a fire-extinguishing medium by pyrotechnical means. Source: IMO MSC.1/Circ.1270, Revised Guidelines for the approval of fixed aerosol fire-extinguishing systems equivalent to fixed gas fire-extinguishing systems, as referred to in SOLAS 74, for machinery spaces, 4 June 2008, International Maritime Organization. Regulatory Guidance  

Generator

Generator―any person or entity who generates or causes to be generated any E and P Waste. Source: Natural Resources, Office of Conservation – General Operations, Louisiana Administrative Code, Title 43, Part XIX, March 2013. Regulations  

Generator

Person who generates oil and gas wastes. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations  

Generator

Any person, by generation site, whose act or process produces hazardous oil and gas waste or whose act first causes a hazardous oil and gas waste to become subject to regulation under this section, or such person's authorized representative. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations  
Aerosol

Aerosol

Definition(s)

Aerosol

Aerosol is a fire-extinguishing medium consisting of finely divided solid particles of chemicals released into a protected space as either condensed aerosol or dispersed aerosol. Source: IMO MSC.1/Circ.1270, Revised Guidelines for the approval of fixed aerosol fire-extinguishing systems equivalent to fixed gas fire-extinguishing systems, as referred to in SOLAS 74, for machinery spaces, 4 June 2008, International Maritime Organization. Regulatory Guidance
SAR Convention

SAR Convention

Definition(s)

SAR Convention

SAR Convention means the International Convention on Maritime Search and Rescue, 1979. Source: IMO MSC.1/Circ.1251, Guidelines on the control of ships in an emergency, 19 October 2007, International Maritime Organization. Regulatory Guidance
MAS

MAS

Definition(s)

MAS

MAS means the Maritime Assistance Service as defined in resolution A.950(23). Source: IMO MSC.1/Circ.1251, Guidelines on the control of ships in an emergency, 19 October 2007, International Maritime Organization. Regulatory Guidance  

MAS

MAS means a maritime assistance service, as defined in resolution A.950(23), responsible for receiving reports in the event of incidents and serving as the point of contact between the shipmaster and the authorities of the coastal State in the event of an incident. Source: IMO Resolution A.949(23), Guidelines on places of refuge for ships in need of assistance, 5 March 2004, International Maritime Organization. Regulatory Guidance  
MRCC

MRCC

Definition(s)

MRCC

MRCC means Maritime Rescue Co-ordination Centre. Source: IMO MSC.1/Circ.1251, Guidelines on the control of ships in an emergency, 19 October 2007, International Maritime Organization. Regulatory Guidance  
Place of Refuge

Place of Refuge

Definition(s)

Place of Refuge

Place of Refuge means a place where a ship in need of assistance can take action to enable it to stabilize its condition and reduce the hazards to navigation, and to protect human life and the environment, as defined in resolution A.949(23). Source: IMO MSC.1/Circ.1251, Guidelines on the control of ships in an emergency, 19 October 2007, International Maritime Organization. Regulatory Guidance Source: IMO Resolution A.949(23), Guidelines on places of refuge for ships in need of assistance, 5 March 2004, International Maritime Organization. Regulatory Guidance  
ISM Code

ISM Code

Definition(s)

ISM Code

ISM Code means the International Safety Management Code, made mandatory under SOLAS regulation XI/3.1. Source: IMO MSC.1/Circ.1251, Guidelines on the control of ships in an emergency, 19 October 2007, International Maritime Organization. Regulatory Guidance  

ISM Code

ISM Code means the International Management Code for the Safe Operation of Ships and for Pollution Prevention, as amended. Source: IMO resolution A.1021(26), Guidelines for ships operating in polar waters, 18 January 2010, International Maritime Organization. Regulatory Guidance  
Intervention Convention

Intervention Convention

Definition(s)

Intervention Convention

Intervention Convention means the International Convention relating to Intervention on the High Seas in Cases of Oil Pollution Casualties (1969) and the Protocol relating to Intervention on the High Seas in Cases of Pollution by Substances other than Oil (1973). Source: IMO MSC.1/Circ.1251, Guidelines on the control of ships in an emergency, 19 October 2007, International Maritime Organization. Regulatory Guidance  
UNCLOS

UNCLOS

Definition(s)

UNCLOS

UNCLOS means the United Nations Convention on the Law of the Sea, 1982. Source: IMO MSC.1/Circ.1251, Guidelines on the control of ships in an emergency, 19 October 2007, International Maritime Organization. Regulatory Guidance
IAMSAR MANUAL

IAMSAR MANUAL

Definition(s)

IAMSAR MANUAL

IAMSAR MANUAL means the International Aeronautical and Maritime Search and Rescue Manual. Source: IMO MSC.1/Circ.1251, Guidelines on the control of ships in an emergency, 19 October 2007, International Maritime Organization. Regulatory Guidance  
Ship in Need of Assistance

Ship in Need of Assistance

Definition(s)

Ship in Need of Assistance

Ship in need of assistance means a ship in a situation, apart from one requiring an operation co-ordinated by a MRCC in accordance with one of the three emergency phases; uncertainty, alert and distress phase, that could give rise to loss of the vessel or an environmental or navigational hazard. Source: IMO MSC.1/Circ.1251, Guidelines on the control of ships in an emergency, 19 October 2007, International Maritime Organization. Regulatory Guidance  

Ship in Need of Assistance

Ship in need of assistance means a ship in a situation, apart from one requiring rescue of persons on board, that could give rise to loss of the vessel or an environmental or navigational hazard. Source: IMO Resolution A.949(23), Guidelines on places of refuge for ships in need of assistance, 5 March 2004, International Maritime Organization. Regulatory Guidance
Stability Instrument

Stability Instrument

Definition(s)

Stability Instrument

A stability instrument is an instrument installed on board a particular ship by means of which it can be ascertained that stability requirements specified for the ship in Stability Booklet are met in any operational loading condition. A stability instrument comprises hardware and software. Source: IMO MSC.1/Circ.1229, Guidelines for the approval of stability instruments, 11 January 2007, International Maritime Organization. Regulatory Guidance Source: IMO resolution MSC.267(85), International Code on Intact Stability, 2008 (2008 IS Code), 4 December 2008, International Maritime Organization. Regulatory Guidance Source: IMO Resolution MSC.267(85), adoption of the International Code on Intact Stability, 2008 (2008 IS Code), 4 December 2008, International Maritime Organization. Regulatory Guidance
Design Casualty Scenario

Design Casualty Scenario

Definition(s)

Design Casualty Scenario

Design casualty scenario means a set of conditions that defines the development and severity of a casualty within and through ship space(s) or systems and describes specific factors relevant to a casualty of concern. Source: IMO MSC.1/Circ.1212, Guidelines on alternative design and arrangements for SOLAS chapters II-1 and III, 15 December 2006, International Maritime Organization. Regulatory Guidance  
Design Casualty

Design Casualty

Definition(s)

Design Casualty

Design casualty means an engineering description of the development and severity of a casualty for use in a design scenario. Source: IMO MSC.1/Circ.1212, Guidelines on alternative design and arrangements for SOLAS chapters II-1 and III, 15 December 2006, International Maritime Organization. Regulatory Guidance