Chemical Tankers / Day 4 / Day 4 Topic 5 Cargo Contamination (sources & precautions)

Sources of Cargo Contamination:

Leaking Cargo Pump Seal

(Failure of Purging Procedures)

Cargo Hoses

(Failure of Cleaning / Inspection Procedures)

Tank Lid Packings

(Odour / Residues)

(Failure of Inspection Procedures / Records) (Dedicated packings eg: for Acrylates)

Sources of Cargo Contamination:

Hydraulic Oil:

Leaking Cargo Pump Seals

(Failure of purging procedures)

Portable Pump

(Failure of routine test procedures)

PO Coolers

(If old type hydraulic paddle design)

Pump stack crack

( failure of Purging / Diagnostic Test Procedures)

Sources of Cargo Contamination:

Tank Cracks:

Between Cargo Tanks and……

Between Cargo and Ballast Tanks

(Failure of Inspection Procedures)

(Notification / Log Entries / Monitoring)

Possible Transfer as immediate solution

Sources of Cargo Contamination:

Atmospheric Sources:

Air / Water (condensation) (Failure to maintain N2 Blanket)

Sources of Cargo Contamination:

Sampling:

Dirty Equipment

Chains / Ropes / Sample catchers / Spiggots (Drain Cock

Samplers), UTI Samplers.

Surveyors

(Poor Technique)

(Dirty Equipment)

Tank Lids

(Rain water / salt / grease)

Sources of Cargo Contamination:

To minimize contamination:

Plan thoroughly……

Follow procedures…

Be vigilant……

End of Topic