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Study Notes: Labelling of Chemicals

Labels indicating a hazardous substance are required for their containers if the containers:
  • hold hazardous substances
  • hold decanted hazardous substances that are not consumed immediately (though the label need only have the product name and risk and safety information)
  • hold items (and substances) which can produce hazardous substances
  • are not cleaned (until they no longer contain a hazardous substance).
Below is a summary of the classes of hazardous chemicals commonly found in a laboratory:
Class 1 Explosives
Class 2 Gases
Class 3 Flammable liquids
Class 4 4.1 Flammable solids

Substances liable to spontaneously igniteSpontaneously combustible materials

  4.3 Substances that form flammable gases in contact with water
Class 5 5.1 Oxidising agents
  5.2 Organic peroxides
Class 6 Poisons and infectious substances
Class 7 Radioactive materials
Class 8 Corrosives
Class 9 Miscellaneous dangerous substances

Labelling of chemicals and solutions

Mark bottles and jars clearly with the:
  • product name
  • prescribed risk and safety information
  • first aid details, emergency procedures
  • reference to the MSDS
  • name of the owner (initials) and date.
Chemical bottle with correct details on label.

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