Dangerous Goods Educational Services
Dangerous Goods Educational Services
Lesson 1, Topic 1
In Progress

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Class 6 – Toxic and Infectious Substances


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  • Class 6 is divided into 2 divisions
  • 6.1 Toxic Substances
    o Substances likely to cause death, serious injury or harm to human health if swallowed, inhaled or comes into contact with human skin
    o Further separated into Packing Groups based on the degree of toxicity (TDGR 2.29)
  • 6.2 Infectious Substances
    o Primarily separated into Categories A and B, but consult TDGR 2.36 for further classification
    o Category A
    – an infectious substance that is transported in a form such that, when it is released outside of its means of containment and there is physical contact with humans or animals, it can cause permanent disability or life-threatening or fatal disease to humans or animals
    – Refer to TDGR Part 2 Appendix 3
    — Infectious substance, affecting humans à UN2814
    — Infectious substance, affecting animals à UN2900
    o Category B
    – an infectious substance that does not meet the criteria for inclusion in Category A. [Cultures must be assigned to UN2814 or UN2900 as appropriate, TDGR 2.36 (2)]
    — Biological substance, Category B à UN3373
    – 24 hr # must be marked next to the PSN [TDG 1.39 (c)]
  • 6.2 Infectious Substances
    o Primarily separated into Categories A and B, but consult TDGR 2.36 for further classification
    o Category A
    – an infectious substance that is transported in a form such that, when it is released outside of its means of containment and there is physical contact with humans or animals, it can cause permanent disability or life-threatening or fatal disease to humans or animals
    – Refer to TDGR Part 2 Appendix 3
    — Infectious substance, affecting humans à UN2814
    — Infectious substance, affecting animals à UN2900
    o Category B
    – an infectious substance that does not meet the criteria for inclusion in Category A. [Cultures must be assigned to UN2814 or UN2900 as appropriate, TDGR 2.36 (2)]
    — Biological substance, Category B à UN3373
    – 24 hr # must be marked next to the PSN [TDG 1.39 (c)]