Download Biohazard Symbol

Toxic Sign
Toxic Sign
• Indicates toxicity
- Toxic substances are poisonous and can cause
damage to the body
• Different types of toxic
- Chemical
- Harmful chemicals such as mercury and asbestos
- Biological
-Harmful bacteria that cause diseases
Biohazard Sign
Biohazard Sign
• A sign that indicates the presence of biological
hazards (biohazards)
- Biohazards are infectious biological substances that can
threaten our health
- Biohazards are usually bacteria and viruses
• Biohazards are leveled according to risk
- Level 1 biohazards, like varicella, have minimal risk
- Level 2 biohazards, like HIV, can cause mild diseases
- Level 3 biohazards, like malaria, can cause severe or fatal
diseases, but there are treatments
- Level 4 biohazards, like Ebola virus, can cause severe or
fatal diseases and there are no treatments.
High Voltage Sign
High Voltage Sign
• Indicates that there is high voltage
- Voltage is the degree of electrical force
- The higher the voltage, the more dangerous the
electricity and the more intense electrocution will be
• Used in:
- Electrical power distribution
- Cathode ray tubes
- used in x-rays and particle beams
Trefoil (Radiation) Sign
Radiation Sign
• Indicates radiation
- Radiation is the process wherein energy travels through
space to be absorbed by another object
• Has 2 kinds
- Ionizing radiation (
)
- consists of electromagnetic waves that can detach
electrons from atoms
- Includes x-rays and ultraviolet rays
- Non-ionizing radiation (
)
- consists of electromagnetic waves that do not have
enough energy to detach electrons from atoms
- Includes microwaves and radio waves (cellphones,
radio, etc.)
Corrosive Sign
Corrosive Sign
• Indicates material that can cause corrosion
- Corrosion is the disintegration of a substance into
atoms and is usually caused by chemical reaction
• Corrosive substances are harmful
- Can cause damage if inhaled, ingested, or has contact
with the eyes or skin
- Includes some acids such as sulfuric acid and bases
such as ammonia