10. Class D - Poisonous & Infectious Materials
Hazard/Danger
Class D1
Materials causing
immediate/serious toxic
effects
- potentially fatal
poisonous substance
- may be fatal/cause
permanent damage if
inhaled, swallowed,
absorbed through skin
Division 1
Material causing immediate/serious toxic effect
- effects within minutes/hours after an exposure.
- can be fatal/cause permanent damage if inhaled,
- ingested or absorbed through skin.
Working safely with a Class D1 material.
- substitute if possible
- avoid direct contact - wear PPE
- use good hygiene practices
- dispose in an approved way - see MSDS
Hazard/Danger
Class D2 materials causing
other toxic effects
- a poison not
immediately dangerous
to life
- repeat exposures can
cause death or
permanent damage
- may be a sensitizer,
cause cancer, birth
defects, sterility
Division 2
Materials causing other toxic effects
- a poisonous material may not be immediately
dangerous to health
- repeat exposures can cause death/permanent damage
- may be a sensitizer, cause cancer, birth defects,
sterility
Health effects of Class D2 materials
Carcinogen - ability to cause cancer
Embryotoxin - substance that can harm embryo
Mutagen - changes genetic DNA - can show up in child
Reproductive toxins - sterility, reduced fertility, miscarriages, birth defects
Teratogen - causes birth defects
Sensitizer - chemical allergic reaction (respiratory or skin)
Irritant - reversible damage (pH 2 - 4 & 8 - 11.5)
Hazard/Danger
Class D3 biohazardous
infectious material
- may cause serious
disease resulting in
illness or death
Division 3
Biohazardous infectious material
- an organism or its toxins that causes illness or death
Sources of Class D3 material
- bacteria, virus, parasites, fungus
Exposure to a Class D3 material
- ingestion, respiration, through the skin.