Awareness-Level Lesson 4 Presentation

1
Awareness-Level Lesson 4 Presentation

• Hazardous Materials for First Responders, 3rd
  Ed.

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Typical Components of PPE

• Respiratory equipment
• Protective clothing
• Structural fire-fighting protective clothing
• High-temperature protective clothing
• Chemical protective clothing

3
What Appropriate PPE Protects

• Skin
• Eyes
• Face
• Hands

• Feet
• Body
• Head
• Respiratory system

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What Appropriate PPE Protects

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PPE and Hazardous Materials

• Structural fire-fighting and high-temperature
  protective clothing Offer limited protection
  against chemical hazards
• Chemical-protective clothing Offers protection
  against hazardous materials
• Requires training above the first responder
  Awareness Level

6
Requirements of PPE

• NFPA standards state requirements for personal
  protective equipment
• Design
• Certification
• Testing

7
Structural Fire-Fighting Protective Clothing

• Provides protection from
• Heat
• Moisture
• Ordinary hazards associated with structural fire
  fighting

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Components of Structural Fire-Fighting Protective
Clothing

• Helmet
• Coat
• Pants
• Boots

• Gloves
• Personal alert safety system (PASS) device
• Hood

9
Limitations of Structural Fire-Fighting Clothing

• Limited protection against hazardous materials
• Neither corrosive-resistant nor vapor-tight
• Gaps occur in clothing
• Chemicals can be absorbed into the equipment
• Rubber or neoprene in boots, gloves, and SCBA
  facepieces can become permeated by chemicals and
  rendered unsafe for use

10
Structural Fire-Fighting Protective Clothing at
Haz Mat Incidents

• Structural fire-fighting protective clothing is
  commonly used at haz mat incidents when the
  following conditions are met
• Contact with splashes of extremely hazardous
  materials is unlikely
• Total atmospheric concentrations do not contain
  high levels of chemicals that are toxic by way of
  skin contact
• There is a chance of fire or there is a fire

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Purpose of Chemical-Protective Clothing and
Equipment

• To shield or isolate individuals from the
  chemical, physical, and biological hazards that
  may be encountered during haz mat operations

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Types of CPC

• Liquid-splash protective clothing
• Vapor-protective clothing

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CPC Combinations

• Single or multipiece garment
• Encapsulating
• Nonencapsulating

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Selection of CPC

• Depends on specific chemical and on specific
  tasks
• Selection considerations
• Most CPC is impermeable to moisture
• Garments permeation, degradation, and
  penetration abilities
• Service life

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CPC Permeation

• Permeation Occurs when a chemical passes
  through the CPC fabric on a molecular level

Chemical spill
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CPC Degradation

• Degradation Occurs when the characteristics of
  the material in use are altered through contact
  with chemical substances

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CPC Degradation
An acid eating away the outer layers of
structural fire-fighting protective clothing is
an example of chemical degradation.
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CPC Penetration

• Penetration Occurs when there is an opening or
  a puncture in the protective material

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CPC Penetration
Chemicals can penetrate PPE through gaps, tears,
punctures, or other openings.
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CPC Service Life

• Reusable
• Limited use
• Disposable

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CPC Written Management Program

• All emergency responders and organizations who
  routinely select and use CPC should establish a
  written CPC management program.

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Positive-Pressure SCBA Components

• Facepiece
• Pressure regulator
• Compressed air cylinder
• Harness assembly
• End-of-service-time indicators

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Advantages of Positive-Pressure SCBA

• Maintains air pressure inside the facepiece
  slightly higher than normal atmospheric pressure
  outside
• Independence
• Maneuverability

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Disadvantages of Positive-Pressure SCBA

• Heavy weight of the units
• Limited air supply duration
• Change in profile that may hinder mobility
• Limited vision caused by facepiece fogging
• Limited communications if not equipped with a
  microphone or speaking diaphragm

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Level D Ensembles

• Used for nuisance contamination and used only
  when no atmospheric hazards exist
• Provide no respiratory protection and minimal
  skin protection
• May not be worn in the hot zone

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Level D Ensemble Components

• Consist of typical work uniforms, street
  clothing, or coveralls
• Includes items such as
• Gloves
• Safety glasses
• Boots
• Hardhats

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Level D Ensemble Use

• Atmosphere contains no hazard
• Work functions preclude splashes, immersion, or
  the potential for unexpected inhalation of or
  contact with hazardous levels of any chemicals

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PPE Care and Inspection

• The user must take all steps to ensure that the
  protective ensemble performs as expected
• All PPE and respiratory equipment must be
  inspected on a routine basis
• Records must be kept of all inspection procedures

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Summary

• Personal protective equipment is essential in
  emergency response. The type of PPE used depends
  on the specific incident. Typical PPE consists of
  respiratory equipment and either structural
  fire-fighting, high-temperature, or
  chemical-protective clothing.
• Structural fire-fighting clothing provides very
  limited protection against hazardous materials.

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Summary

• Chemical-protective clothing provides protection
  against hazardous materials. No one type of CPC
  protects against all hazards.
• Positive-pressure SCBA is often used at incidents
  and has both advantages and disadvantages.

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Summary

• Level D ensembles are typical work uniforms,
  street clothes, or coveralls and are only
  appropriate for nuisance contamination.
• PPE care and inspection is an important component
  in ensuring that PPE is properly maintained and
  safe for the user.

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Awareness-Level Lesson 4 Presentation

• Hazardous Materials for First Responders, 3rd
  Ed.