7 HAZARDS Control

7/26/2019 7 HAZARDS Control

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H AZARD S CO N TRO L


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3.1 Health Hazards

~1) Health Hazards of Liquied Gases

are their toxicity , oxygen deciencyand low temperatures.

~) !odes "y which Liquied Gascargoes and their #apours may "etoxic.

~$) %oxic properties of &nhi"itors.

~') %oxic properties of &nert Gas.


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~() How com"ustion of argo productsor construction materials mayproduce toxic products.

~*) +cute and hronic eects oftoxicity , systematic poisons andirritants.

~-) Lists and descri"es the criteria "ywhich toxicity is measured andexpressed.

~) +sphyxia and it/s symptoms.


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~12) 3rost 4ite and it/s symptoms.

~11) hemical 4urns and lists cargoes

caustic to human s5in.~1) &nformation gi#en in the 6Health

7ata olumn8 of the &9 argo 7ata9heet.


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3.2 First Aid Treatment

~3irst +id :rocedures for accidents

in#ol#ingargo are gi#en in the cargo data

sheets.

~Liquied Gas tan5ers carrying toxiccargoes should ha#e medical rst aidequipment for accidents in#ol#ingthose cargoes on "oard.

~%his equipment includes oxygen


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~!aster or ;esponsi"le o


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~&!> Medical First Aid Guide for use inaccidents involving dangerousgoods(MFAG) gi#es informationregarding medical treatment.

~!3+G gi#es detailed informationa"out signs and symptoms ,rst aid

and the administering the antidotes.


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;eacti#ity

~1) Liquied Gas cargo may react in a

num"er of ways,such as ? @ with itself

@ with air

@ with water @ with another cargo

@ with other materials


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~) 9elf ;eaction and list of Gas cargoesthat may self react .

~ $) :recautions against self reaction.

~') ;eaction with air and list of gascargoes that may react with air.

~() :recautions against reaction with air.

~*) ;eactions with water and list of gascargoes that may react with water.


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~ -) ommon precautions againstreaction with water.

~) argo ompati"ility and list ofgas cargoes that are incompati"le.

~0) :recautions against mixing ofincompati"le cargoes.

~12) 9ome Gas cargoes may reactwith materials and su"stance such as?

@ tan5 material


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@ gas5ets

@ cargo hoses

@ inert gas @ cargo compressor oils

@ cargo pump seal oil

~ 11) :recautions against reactionslisted a"o#e.

~1) ;eacti#ity data for each liquied

gas cargo are gi#en in &9 cargo datasheet .


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3.4 Flammability and explosionhazards

~1) !ost Liquied gas cargoes areAamma"le.

~) &t is not liquids, "ut #apoursemitted from them , that "urn.

~$) Liquied Gas cargoes are carriedat or close to their "oiling point andgi#e o #apours readily.

~') 3lamma"le #apours can ignite and


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~() ertain cargo #apours can "urnand, if ignited, without "eing mixedwith air.

~*) 7enition of 63lashpoint8 anddescri"e ways of determining it.

~-) 7enition of 6+uto &gnition%emperature8.

~) om"ustion is a chemical reactionand descri"es the process of "urning

of hydrocar"ons.


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~12) 3lamma"le range will "e dierentfor dierent cargoes.

~11) 3lamma"ility hart~1) the eect of increasing or

decreasing the proportion of oxygenon the Aamma"le limits.

~1$) 3ire and explosion data for eachliquied gas cargo are gi#en in the&9 cargo data sheets.


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3.5 Repairs and Hot Wor

~1) Do hot wor5 can "e carried out

unless a Epermit to wor5/ is issued.~) hot wor5 includes the use of power

tools.

7 HAZARDS Control

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