Personal Protective Equipment (PPE). FACTORS AFFECTING CHEMICAL RESISTANCE 1.Length of exposure time...
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Transcript of Personal Protective Equipment (PPE). FACTORS AFFECTING CHEMICAL RESISTANCE 1.Length of exposure time...
Personal Protective Equipment (PPE)
FACTORS AFFECTING CHEMICAL RESISTANCE1. Length of exposure time• thin materials for one application
– disposable
FACTORS AFFECTING CHEMICAL RESISTANCE2. Exposure situation• depends on task, sharp or rough
objects
FACTORS AFFECTING CHEMICAL RESISTANCE3. Type of chemical• Some are corrosive
CHEMICAL RESISTANT MATERIALS
Materials NOT resistent:• cotton• leather• canvas
CHEMICAL RESISTANT MATERIALS
• rubber or plastic• non-woven fabric
PROTECTING SKIN
• most exposure• long-sleeved shirt and long-legged
pants
PROTECTING SKIN
Body
Coveralls• clothes underneath• loose to provide air
layers
PROTECTING SKIN
Body
Chemical-resistant suit• chemical is very hazardous• “rain suit”• heat stress
PROTECTING SKIN
Body
Chemical-resistant apron• mixing and loading
PROTECTING SKIN
Hand and Foot
Gloves• hands and forearms• whenever handling pesticides• if working overhead or below to
wear glove in or out of suit
PROTECTING SKIN
Hand and Foot
• exposure occurs when gloves removed briefly– adjusting equipment– scratching face
• always wash gloves before removed
Hand and Foot
• Latex for minor handling and single use
PROTECTING SKIN
PROTECTING SKIN
Hand and Foot
Footwear• Chemical-resistant shoes• Not canvas, cloth, and leather
– Unless shoe covers
PROTECTING SKIN
Head and Neck
• Working overhead wide-brim resistant
• Greenhouse or trees• Hood is for drift from booms
PROTECTING EYES
• goggles, safety glasses, or face shield
• shield in addition to goggles during mixing
PROTECTING RESPIRTORY
Respiratory protection - must be NIOSH and MSHA approved
• enclosed area• long period of exposed
Air-supplying Respirator
air-supplying - air is from independent source– oxygen supply is low– fumigation
• supplied - limited by the length of hose
• self-containing - canister of air, 30 - 45 minutes
Air-purifying Respirator
air-purifying - filter contaminants• dusts, mists, gases and vapors
Cartridges1. dust/mist-filtering• replace filters when difficult to
breathe
Air-purifying Respirator
Cartridges2. vapor-removing material
– Activated charcoal
• change when noticing odor or taste• replace after 8 hours use
Air-purifying Respirator
Air-purifying Respirator
Non-powered air-purifying respirator• require operator to draw air
through filters• exhausting
Air-purifying Respirator
Powered air-purifying respirator (PAPR)
• assist operator in drawing air• not air-supplying
Air-purifying Respirator
Face-sealing respirators• tight seal
– no facial hair
• full-face styles better than half-face
Air-purifying Respirator
Face-sealing respirators• fit test: testing whether operator
can detect substance• fit check:
– #1, close inlet, breathe in, hold 10 seconds with mask collapsed
– #2, cover outlet and exhale until mask inflates
Air-purifying Respirator
Loose-fitting respirators• Pump through filter into helmet or
hood– Facial hair allowed
MAINTAINING PPE
Disposables: not be washed• latex gloves• shoe covers• non-woven coveralls• cartridges and filters
MAINTAINING PPE
Reusable: reused several times• rubber and plastic equipment
MAINTAINING PPE
Reusable gloves• holes (ballooning)• replace gloves after 5 to 7 days of
work– heavy-duty: 10 to 14 days
MAINTAINING PPE
• fabric coveralls: clean after every use
• throw away if drenched with chemical labeled “DANGER” or “WARNING”
MAINTAINING PPE
Cleaning equipment• detergent and hot water• sanitize: 2 minutes in 2 tbs bleach
in one gallon of hot water then rinse
MAINTAINING PPE
Personal equipment• wash clothes in hot water separate
from regular laundry• Dry outdoors
– Sunlight