Hazardous Cargo

The International Maritime Organisation has classified dangerous goods in 9 classes : Explosives, gases, flammable liquids, oxidizing substances and organic peroxides, toxic and infectious substances, corrosives and miscellaneous dangerous substance and articles.


Type Description Range Status
Class 1 Explosives All A(1)
Class 2 Gases: Compressed, Liquefied, or Dissolved under pressure All A
Class 3 Flammable Liquids All A
Class 4.1 Flammable Solids All A
Class 4.2 Substance liable to spontaneous combustion All A
Class 4.3 Substance which emit flammable gases in contact with water All A
Class 5.1 Oxidizing substances (agents) by yielding oxygen increase the risk and intensity of fire Other than UN below A
    A Calcium hypochlorite UN 1748/2880/2208 Not Acceptable
Class 5.2 2 Organic peroxides - most will burn rapidly and are sensitive to impact or friction All A
Class 6.1 1Toxic substances All A
Class 6.2 Infectious substances All Not Acceptable
Class 7 Radioactive Substances Other Than Fissile A(1)
    Fissile Not Acceptable
Class 8 Corrosives All A
Class 9   All  
All Classes Miscellaneous dangerous substances and articles Dangerous waste A
    PSAI at Singapore (or transit) A(1)

A : Acceptable provided comply with international, national and local law rules, port and terminal rules and charter party terms and lines restrictions

A(1) Acceptable on a case by case basis

* In reefer :

  1. No class 6.1 (Toxic substances)
  2. Class 3 (Flammable Liquids): Acceptable provided reefer temperature never reaches the safety temperature, if it does, reefer will be kept stopped. Safety temperature is 5°C below Flash Point.
  3. Other class see line instructions.
  4. See also line restrictions.