Lecture 4 PPE Student

8/19/2019 Lecture 4 PPE Student

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LECTURE 4

SAFETY AND PERSONAL

PROTECTIVE EQUIPMENT

(PPE)DR SHANTI K NAVARATNAM1


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OBJECTIVES4.1 PPE – examples -Goggle, lab coat, gloves, shoes,

respirator.

4.2 Safety equipments –fume hood, fire extinguisher,

safety shower, eye wash, first aid kit, fire alarm, exitdoor.

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4.1 PPE – EXAMPLES -GOGGLE,

LAB COAT, GLOVES, SHOES,

RESPIRATOR.3


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EXPOSURE! Exposure to Hazardous Chemicals Can Result in

acute or chronic health effects

! Acute – ………………………………………….

! Chronic – ……………………………………….

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Engineering: Removes orSeparates Hazard from Person

i.e.: ! Local Ventilation (Fume Hoods)

!

Chemical Substitutions

Administrative:

Procedures that Limit

Contact with Hazard i.e.:

•

Job Rotation

•

School Staff Training

•

Good Housekeeping


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PERSONAL PROTECTIVE EQUIPMENT

(PPE)

PPE Should Be Considered Only

After …………………..and……………………….Have Been

Applied.


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What is PPE?

o Personal protective equipment, or PPE, is

designed to provide …………… from

serious injuries or illnesses resulting from

contact with chemical, radiological,

physical, electrical, mechanical, or other

hazards.

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Selection of PPE

o Careful selection and use of adequate PPE

should protect individuals involved in chemicalemergencies from hazards effecting the

……………………………………………………………………………………………………………..

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SELECTION OF PPE !

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o No single combination of protective equipment

and clothing is capable of protecting against allhazards. Thus PPE should be used in

conjunction with other protective methods,including exposure control procedures and

equipment.


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TYPES OF PPE" EYE & FACE PROTECTION

" RESPIRATORY PROTECTION

" HEAD PROTECTION

" FOOT PROTECTION

" HAND & SKIN PROTECTION

" HEARING PROTECTION

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MINIMUM LAB PPE REQUIREMENTS

! ………………………….

! ………………………..

!

Long pants! Close-toed shoes

! Chemical resistant gloves (whenworking with hazardous substances)

Other PPE may also be required,

depending on the operation.


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ROUTES OF EXPOSURE

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EYE & FACE PROTECTION! Required to be worn in areas

where there is exposure to eyeand face hazards from flying

particles, molten metal, liquidchemicals, acids, caustic liquids,

chemical gases or vapors or

potentially injurious light radiation

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# Thousands of people

are blinded each year

from work-relatedinjuries

# With eye or face

protection, injuries can

be prevented

# “One incident is all it

takes”14


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TYPES OF EYE & FACE PROTECTION

# Spectacles

# Goggles

# Face Shields

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SAFETY GLASSES ! wide range of safety glasses are

available including scratch resistant,

ultra-light weight, anti-fog and wraparound.

! Frames made of metal or plastic have

impact-resistant lenses and side

shields are available on some models.! Glasses should be washed periodically

with soap and water. 16


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SAFETY GOGGLES !

If there is risk from chemical splashes then safetygoggles are recommended.

! Goggles are tight-fitting, completely covering the eyesand area immediately surrounding the eyes.

! They can……………………………………………………………………………………………………………………

Some goggles will fit over prescription glasses.

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FACE SHIELDS

! transparent sheets of plastic which cover the face and

protect against potential splashes or sprays of

hazardous liquids and dust. The head piece isadjustable and should fit snugly.

! They are recommended when transferr ing

………………, such as liquid nitrogen or handling large

quantities of liquids (> 4L).! They do NOT provide adequate protection against high

i m p a c t h a z a r d s , i n w h i c h c a s e

………………………..should also be used. 18


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RESPIRATORY PROTECTION! Required to be worn in areas where

effective engineering controls are not

feasible to protect the health of the

employee from harmful dusts, fogs, fumes,mists, gases, smokes, sprays or vapors

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LUNG DAMAGE

# Inhalation of hazardous

materials damagesdelicate structures of the

lung# Damaged lungs are

more susceptible to

respiratory disease

# Most direct route to thebloodstream

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TYPES OF RESPIRATORS

# Air-purifying

# Supplied-air

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HEAD PROTECTION! Required to be worn in

areas where there is apotential for injury to

the head from falling ormoving objects or when

exposed to electrical

conductors which could

be contacted by thehead

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HEAD PROTECTION! Injuries to the head could involve: brain, eyes, nose,

mouth and ears

! For this reason, head protection and safety are very

important

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HEAD PROTECTION" Limited protection by REDUCING the force of small

falling objects striking or penetrating the TOP of theshell

" Does not provide front, side or rear impact orpenetration protection

" Inspect daily for signs of dents, cracks,penetrations, and any damage due to impact, roughtreatment or wear

" If fails inspection, remove from service

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FOOT PROTECTION! Required when used in areas where there

is danger of foot injuries due to falling and

rolling objects, slip hazards or objects

piercing the sole, and where employeesare exposed to electrical hazards

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HAND & SKIN PROTECTION! Required when in areas where hands

and body are exposed to skin

absorption of harmful substances,

severe cuts or lacerations, chemical or

thermal burns, etc.

! Protection must be compatible with

hazard

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SELECTION OF

GLOVES/CLOTHING! Dependent upon type of hazard

! Check MSDS for guidelines for chemical hazards

! Not every job requires gloves as they can become a

hazard! Allergies - Latex, powder

! Clothing and jewelry can also become hazards

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GLOVE SELECTION

! type of chemicals handled

! nature of contact (total immersion, splash, etc.)

! duration of contact

! Area requiring protection (hand only, forearm, arm)

! grip requirements (dry, wet, oily)

! Thermal protection

! size and comfort

! abrasion / puncture resistance requirements

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TABLE 1: COMMON GLOVES FOR THE

LABORATORY.

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CLOTHING ! Long sleeved, fully buttoned up lab coats or

wrap around gowns, which are easy to

remove, must be used in all laboratorieswhere lab work involves hazardous material.

! Lab coats help prevent contamination of

regular clothes from…………………….

……………………………………………………

! A lab coat which is grossly contaminated with

hazardous material must be disposed of ashazardous waste.

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HEARING PROTECTION

Exposure to excessive noise depends upon a number offactors:

! loudness of the noise, measured in …………………...

! …………………of exposure to the noise

! movement between work areas with different noise levels

! whether noise is generated from one or multiple sources

! Generally, the louder the noise, the shorter the exposure

time before hearing protection is required.! Noise is excessive where it exceeds the exposure

standard of 85dB, over an average of an eight hour period

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HEARING PROTECTION

! Single-use earplugs are generally made of foamor silicone rubber plugs.

!

Pre-formed or moulded earplugs must be

individually fitted by a professional and can bedisposable or reusable. Reusable plugs shouldbe cleaned after each use.

! Earmuffs require a perfect seal around the ear.Glasses, facial hair, long hair or facial movements

such as chewing may reduce the protective valueof earmuffs.

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PPE MAINTENANCE

! Always inspect PPE for damage (tears,holes, worn elastic, etc.) and contamination

prior to use.! If an item cannot be properly cleaned or

becomes damaged it should be………………….

! Reusable PPE should be immediatelycleaned after each use with the appropriatecleanser (usually soap and water).


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CONTAMINATION CONTROL

! Disposable items should only be used onceand replaced when contaminated.

! Always assume PPE is contaminated: it is

worn to protect against hazardoussubstances.

! Remove PPE prior to exiting the lab to helpprevent the spread of contamination.

!

Be sure you know the proper methods forputting on, taking off and fit-checking anyPPE worn.


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4.2 SAFETY EQUIPMENTS –

FUME HOOD, FIRE EXTINGUISHER, SAFETY

SHOWER, EYE WASH, FIRST AID

KIT, FIRE ALARM, EXIT DOOR.38


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SAFETY EQUIPMENTS

1) Fume Hood

! A fume hood carries away vapors from reagents orreactions.

! Use of a fume hood correctly will reduce ones

p e r s o n a l e x p o s u r e t o p o t e n t i a l l y………………………………

! Place equipment or reactions …………………. Thiswill improve the efficiency of fume collection and

removal.

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SAFETY EQUIPMENTS

! The glass sash of the hood is a safety shield.The sash will fall automatically to the

appropriate height for efficient operation and

should not be raised above this level, except tomove equipment in and out of the hood.

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SAFETY EQUIPMENTS 2) Eye Wash

! In the event of an eye injury or chemical splash, use the

eyewash immediately.

! Help the injured person by holding their eyelids openwhile rinsing.

! …………………………………………………………………..

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SAFETY EQUIPMENTS

3) Safety Shower

! Use a safety shower in the event of achemical spill. Pull the overhead handle and

remove clothing that may be contaminated

with chemicals, to allow the skin to be rinsed.

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SAFETY EQUIPMENTS

4) Fire extinguisher

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EXTINGUISHER CLASSIFICATION

! Class A – ordinary combustibles (wood, cloth, paper)

! Class B – flammable liquids, gases, greases

! Class C – ……………………………..

! Class D – combustible metals

Letter classification given an extinguisher to designate the class or

classes of fire on which it will be effective.

A B C D

Ordinary

Combustibles

Combustible

Metals

Flammable

Liquids

Electrical

Equipment


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Remove persons in immediate danger! Alert others and Emergency Services Contain fire and smoke (close doors) Evacuate &/or extinguish


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PULL THE PIN


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AIM LOW at the base of the fire


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SQUEEZE the lever


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SWEEP from side to side (slowly)


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SAFETY EQUIPMENTS

5) First Aid Kit

! First Aid kits are available in the lab for minor

injuries like cuts or scrapes.

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SAFETY EQUIPMENTS

6) EXIT

!

Openings into an exitmust be limited.

!

Opening into an exitmust be protected bya self-closing fire doorthat remain closed orautomatically closesin an emergencyupon the sounding ofan employee alarmsystem.


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THANK YOU

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Lecture 4 PPE Student

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