| A - Compressed Gas |
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- explosive danger because gases under pressure
- container could explode if heated or impacted
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| B - Flammable & Combustible |
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- will burn/spontaneously ignite in air
- give off flammable gas if in contact with water
- may ignite if exploded to flames, sparks, heat, friction
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| C - Oxidizing Method |
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- fire &/or explosion risk in presence of Class B material
- react violently or explode when contacting combustible materials
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| D - Poisonous & Infectious |
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| D1 - Materials Causing Immediate & Serious Toxic Effect |
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- a potentially fatal poisonous substance
- may be fatal/cause permanent damage if inhaled, swallowed, absorbed
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| D2 - Materials Causing Other Toxic Effect |
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- a poison not immediately dangerous to life
- repeated exposures can cause death/permanent damage
- may be a sensitizer, cause cancer, birth defects, sterility
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| D3 - Biohazardoud Infectious Material |
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- may cause serious disease resulting in illness or death
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| E - Corrosive Material |
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- causes eye/skin tissue damage on contact
- severe tissue damage with prolonged contact
- may be harmful if inhaled
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| F - Dangerously Reactive Material |
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- very unstable
- react with water to give off toxic gas
- may explode from shock, heat, friction
- undergoes polymerization/decompostion
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