Classifications 4-9 Flashcards
These are products that are easily combustible and likely to contribute to fires during transportation.
Class 4 : Flammable Solids
Fill in the blanks:
Under Class 4 Flammable solids, Some products are _____________, some are liable to spontaneously __________ due to friction.
Self reactive, Heating up
What are the categories under Class 4 Division 4.1?
- Solid
- Self-reactive substances
- Solid Desensitized explosive
During transportation, it is readily combustible once friction happens
Solid
It has a mixture or solution, liable to undergo a strong exothermic reaction
Self-reactive substances
Must be diluted sufficiently or it will explode
Solid desensitized explosive
These are substances that once they accumulate too much oxygen, can explode or generate fire
Class 4 Division 4.2 Substances liable to spontaneous combustions
A mixture wherein small quantities are only needed to mix with oxygen for it to explode or contribute to fire.
Pyrophoric substances
What is the maximum time it takes for pyrophoric substance to explode?
5 mins
They need a large amount of substance for it to explode and will only explode even after a day or days have passed, with or without energy supply and contacts with air
Self-heating substances
A lithium and sodium water reaction
Class 4 Division 4.3 Substances which in Contact with Water Emit Flammable Gases
Often extremely reactive because of their high oxygen content
Class 5: Oxidizing Substances and Organic Peroxides
They react readily with other flammable/ combustible materials, which means fires may break out and continue in confined spaces
Class 5: Oxidizing Substances and Organic Peroxides
Substances when in themselves are not necessarily combustible but they can generate fire or contribute to fire if they are exposed to oxygen
Division 5.1 Oxidizing Substances
Substances or thermally unstable substances which may undergo exothermic self-accelerating decomposition
Division 5.2 Organic Peroxides
They can cause serious injury or harm to human health if they enter the body through ingestion, inhalation, or absorption through the skin
Class 6: Toxic and Infectious Substances (Division 6.1 Toxic Substances)
What are the 5 categories that fall under infectious substances?
- Infectious substances
- Biological Substances
- Cultures
- Specimen
- Medical waste
These contain unstable atoms that change their structure spontaneously in a random fashion
Class 7: Radioactive materials
Fill in the blanks:
Under Class 7: Radioactive Materials, they can harm humans through ___________ and _________
radiation and contamination
State the amount of radioactive materials under Category 1 -white
must have 0.005 radioactive materials
State the amount of radioactive materials under Category 2 - yellow
more than 0.005 but less than 0.05 radioactive materials
State the amount of radioactive materials under Category 3 - Yellow
more than 0.05 but less than 2
These are highly reactive materials that produce positive chemical effects due to their reactivity. These cause chemical reactions that degrade other materials when they encounter each other
Class 8: Corrosives
This packing group includes very dangerous substances and preparation
Packing Group 1
