unit 7 personal protective equipment. connecticut tank removal unit 7 objective given lecture and...

Unit 7

Personal Protective Equipment

Connecticut Tank Removal

Unit 7 ObjectiveUnit 7 Objective

Given lecture and practical exercises utilizing provided equipment, the participant will identify medical surveillance and the different types of respiratory and chemical protective equipment. Given tabletop and practical exercises the participant will choose and don the applicable equipment to protect themselves against predetermined chemical hazards.


Medical Surveillance Programs

Medical Surveillance Programs

29 CFR 1910.120(f)Employers engaged in hazardous waste

operations shall institute a medical surveillance program for its employee’s


Employees covered in Program


Employee’s who may be exposed at or above the PEL without regard to the use of a respirator for 30 days or more a year

Employee's who wear a respirator for 30 days or more a year




Employee’s who are injured, become ill or develop signs and symptoms due to possible exposure

Employee’s that are members of a Haz-Mat Team


When Medical Exams Occur

When Medical Exams Occur

Prior to assignmentEvery 12 monthsAt terminationUpon indication of signs

and symptoms of possible exposure, or if exposed above the PEL


Minimum Contents of Exam

Minimum Contents of Exam

Medical & work historySymptoms of hazardous substancesFitness for dutyAbility to wear PPE and work under temperature

extremesAbility to wear respiratory equipment


Respiratory ProtectionRespiratory Protection

29 CFR 1910.134(d)(1)(iii)The employer shall identify and evaluate the

respiratory hazard(s) in the workplace which shall include a reasonable estimate of employee exposure to respiratory hazards. Where an employer cannot identify or reasonably estimate the employee exposure, the employer shall consider the atmosphere to be IDLH




Shall be selected and used which will protect employee’s from the hazards, and potential hazards they are likely to encounter as identified during the site characterization and analysis


Respiratory HazardsRespiratory Hazards

Oxygen DeficiencyParticulatesGases & VaporsFlammable


Types of Respiratory Protection

Types of Respiratory Protection

Air Purifying Respirator (APR)Powered Air Purifying Respirator (PAPR)Supplied Air Respirator (SAR)Supplied Air Breathing Apparatus (SABA)Self Contained Breathing Apparatus (SCBA)


Employers ResponsibilityEmployers Responsibility

Develop a respiratory protection programEnsure employee is medically fit to use

respiratory protectionEnsure employee has been trained in the

selection and use of respiratory protectionEnsure the employee has no facial hair that will

impede the seal of the respiratory protection


Employers ResponsibilityEmployers Responsibility

Ensure employee’s are fit tested to the make, model and size of the respiratory protection to be used

Provide respirators to employee’sEnsure respiratory protection is maintained,

inspected and kept cleanEvaluate Respiratory Protection Program

regularly


APR’sAPR’s

Provides protection from certain gases, vapors and particles by using activated charcoal, or paper cartridges to filter contaminants from the air


Criteria for Choosing an APR

Criteria for Choosing an APR

Adequate 02 MUST be present

Product MUST be identified

Concentration of contaminant in air MUST be identified

Chemical specific cartridge MUST be used

APR’s MUST not be used in IDLH atmospheres

APR’s MUST not be used in flammable atmospheres

Cartridge service life MUST be predetermined


Determining Service LifeDetermining Service Life

Documentation from the cartridge manufacturer

End of Service Life Indicator


PAPR’sPAPR’s

Provides protection from certain gases, vapors and particulates by using activated charcoal, or paper cartridges, and canisters to filter contaminants from the air


Criteria for Choosing an PAPR

Criteria for Choosing an PAPR




Chemical specific cartridge or canister MUST be used

PAPR’s MUST not be used in IDLH atmospheres

PAPR’s MUST not be used in flammable atmospheres

Cartridge & canister service life MUST be predetermined


SAR’sSAR’s

Respirators supplied with air from a remote source

Pressure demand or constant air flow

Combination SAR’s have the ability to use supplied air or air purifying cartridges


Criteria for using SAR’sCriteria for using SAR’s




Air line must be protected

SAR’s MUST not be used in IDLH atmospheres

SAR’s MUST not be used in flammable atmospheres

Length of supply hose cannot exceed three hundred feet


SABASABARespirators supplied with

air from a remote source and has a hip mounted escape bottle

Pressure demand regulator

SCBA’s can have dual purpose capabilities as an SABA / SCBA


Criteria using SABACriteria using SABA


Can be used in IDLH atmospheres

Air line MUST be protected

Length of supply hose cannot exceed three hundred feet

Only NFPA approved dual purpose SCBA’s can be used in flammable atmospheres


SCBA’sSCBA’sSelf contained air

cylinders with an estimated air time of 30, 45 and 60 minutes

Can be used in IDLH atmospheres

Only NFPA approved SCBA’s can be used in flammable atmospheres


Chemical Protective Clothing


CPC is designed, tested and manufactured to protect workers from harmful affects of chemical exposure to gases, vapors, and particles




Although many CPC fabrics are compatible to a wide variety of chemicals, there is not a single fabric compatible to all chemicals


Types of FabricsTypes of Fabrics

Reusable garments are manufactured of elastomer rubber-like fabrics such as butyl rubber, PVC, neoprene, etc

Disposable/Reusable garments are manufactured of non-elastomer fabrics which are non-woven substrates with one or more chemical resistive barriers


CPC Chemical ResistanceCPC Chemical Resistance

DegradationPenetrationPermeationFlammability


DegradationDegradation

A physical change to the protective fabricThe melting, cracking, shrinking, or swelling of a fabric

as the result of chemical contact


PenetrationPenetration

A substance passing through a suit directly through an opening in the suit or fabric


Serged SeamSerged Seam

Sewn or stitched with visible openings


Sewn & Bound SeamSewn & Bound Seam

A raised sewn seam with a Tyvek sewn overlay

Better penetration protection than the serged seam


Serged & Taped SeamSerged & Taped Seam

Serged Seam taped over to provide improved protection over the serged and serged and bound seam


Taped Serged & BoundTaped Serged & Bound

Taped serged and bound seam offering better protection than previous seams


Welded SeamWelded Seam

Heat sealed seam offering highest level of protection from chemical penetration through the seams in the suit


PermeationPermeation

The movement of a chemical through a fabric from the outer to the inner surface on a molecular level

One term of measurement is known as breakthrough or average breakthrough time


Identifying Permeation Rates

Identifying Permeation Rates

Identify chemical substance and concentrationUtilizing a chemical reference book or

permeation guide look up the chemical sub-class number

Utilizing a Permeation Guide research the permeation rate to determine chemical compatibility with CPC fabrics


FlammabilityFlammability

Flash protection MUST be considered when working with flammable materials

Unless specified as flash protection all CPC will burn readily


Other CPC considerationsOther CPC considerations

Many chemical protective garments have shelf lives

Extremely cold temperatures will make many garments brittle

Hotter temperatures will reduce the permeation rates

Always consider flexibility, abrasion resistance and tensile strength,


Gloves and BootsGloves and Boots

All preliminary research performed for selection of CPC must also be performed for gloves and boots

Task to be performed must also be considered to determine the durability of gloves and boots


Level A ProtectionLevel A Protection

Vapor tight chemical resistive garment

SCBA or SABA inside suitInner & outer glovesInner & outer bootsIntrinsically safe two-way

radio inside the suit


Level B ProtectionLevel B Protection

One or two piece chemical protective garment

Encapsulating or non-encapsulating non-vapor tight suit

SCBA, SABA or SAR inside or outside the suit

Inner & outer glovesOuter Boots


Level C ProtectionLevel C Protection

One or two piece chemical protective garment

APR or PAPRInner and outer glovesOuter boots


Level D ProtectionLevel D Protection

CoverallsWork bootsGlovesHard HatEye protection


High Temp. & Flash Protection

High Temp. & Flash Protection

Structural Firefighters protective clothing

Proximity suitsEntry suitsNFPA Level A garment


Physiological & Physical Stresses

Physiological & Physical Stresses

Working in chemical protective clothing can be demanding mentally and physically

Claustrophobia could be encountered by some individuals wearing respiratory protection or encapsulating suits

Extreme temperature conditions are encountered regularly, signs and symptoms of heat related emergencies need to be recognized


Heat Related EmergenciesHeat Related EmergenciesHeat Cramps Heat Exhaustion Heat Stroke

Symptoms:Muscle CrampsHeavy Perspiration

Symptoms:Skin is Cold & ClammyHeavy PerspirationHeadacheDizzinessNausea

Symptoms:Skin is Hot & DryLittle or No PerspirationLoss of ConsciousnessFast, Weak PulseFast, Shallow Breathing

Actions:Move to cool placeOffer sips of cool waterRest the affected muscle

Actions:Move to cool placeSips of cool waterApply cold packs/towelsElevate legsSeek medical attention if no improvement in 30 min.

Actions:Move to cool placeIf conscious offer sips of cool waterElevate head & shouldersCALL 911Apply cold packs/towels

unit 7 personal protective equipment. connecticut tank removal unit 7 objective given lecture and...

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