Gas Freeing
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Job Safety Analysis Sheet OPS-55 Vess el:
M/T Sirius Voyager
Job/Activity Description: Gas Freeing OPS References/Required Permits/Forms: OBH-02-05
Job Steps (in sequence) 1
Job/Activity Reference #:
Pa ge
Required PPE: Hard Hat, Safety Glasses, Safety Shoes, Working Gloves Required Level of Supervision: Chief Officer.
Potential Hazards
1
of
1
Dat e:
18-Apr-04
Other Required Safety Equipment:: As required. Manpower Requirements/Other Considerations: Officer/ Duty Engr./ Pumpman/Sailor
Potential Unsafe Behaviors
Isolate the Tank to be Gas Freed from I.G. system main Line.
Transferring of dangerous Vapor into the Tank to be Gas freed.
Wrong I.G. inlet valves closed
Prepare portable water driven Fans
Back injury
Improper lifting technique
Starting the Portable Water driven Fans
Improper Ventilation
Low Fire main pressure. Not checking if the Fans are working properly.
Monitor Atmosphere in the Cargo Tanks.
Oxygen deficient atmosphere. Presence of Hydrocarbon Gases.
Faulty instrumentation.
Confirmed Gas Free Condition
Oxygen deficient atmosphere. Presence of Hydrocarbon Gases.
Not stopping portable Water Fans before taking final checks.
Recommended Actions or Procedures Very and confirm I.G. inlet valves for Cot not to be gas freed is closed. Fit I.G. Spade blank inside I.G. hatch. Observed Me and My back
2 3
4 5
Use Fire and GS pump if necessary keeping at least 9-10 kg pressure. Verify fans are working properly and place portable water fans on the fore part of Cargo Tank. Calibrate instrument before use. Allow 10 mins. OF stop before taking final atmosphere check. Record all readings and log all results in Deck Logbook and OPS 36. Confirm Oxygen must be 20.8% LEL less than 1% by volume and no other Gases present.
OPS-55 (2-02) Required by WPR-01-02
OPS-55(2-02) Required by WPR-01-02
M/T Sirius Voyager
Job/Activity Description: Gas Freeing OPS References/Required Permits/Forms: OBH-02-05
Job Steps (in sequence) 1
Job/Activity Reference #:
Pa ge
Required PPE: Hard Hat, Safety Glasses, Safety Shoes, Working Gloves Required Level of Supervision: Chief Officer.
Potential Hazards
1
of
1
Dat e:
18-Apr-04
Other Required Safety Equipment:: As required. Manpower Requirements/Other Considerations: Officer/ Duty Engr./ Pumpman/Sailor
Potential Unsafe Behaviors
Isolate the Tank to be Gas Freed from I.G. system main Line.
Transferring of dangerous Vapor into the Tank to be Gas freed.
Wrong I.G. inlet valves closed
Prepare portable water driven Fans
Back injury
Improper lifting technique
Starting the Portable Water driven Fans
Improper Ventilation
Low Fire main pressure. Not checking if the Fans are working properly.
Monitor Atmosphere in the Cargo Tanks.
Oxygen deficient atmosphere. Presence of Hydrocarbon Gases.
Faulty instrumentation.
Confirmed Gas Free Condition
Oxygen deficient atmosphere. Presence of Hydrocarbon Gases.
Not stopping portable Water Fans before taking final checks.
Recommended Actions or Procedures Very and confirm I.G. inlet valves for Cot not to be gas freed is closed. Fit I.G. Spade blank inside I.G. hatch. Observed Me and My back
2 3
4 5
Use Fire and GS pump if necessary keeping at least 9-10 kg pressure. Verify fans are working properly and place portable water fans on the fore part of Cargo Tank. Calibrate instrument before use. Allow 10 mins. OF stop before taking final atmosphere check. Record all readings and log all results in Deck Logbook and OPS 36. Confirm Oxygen must be 20.8% LEL less than 1% by volume and no other Gases present.
OPS-55 (2-02) Required by WPR-01-02
OPS-55(2-02) Required by WPR-01-02
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