protecting yourself the overall objective is that participants will recognize techniques for...
TRANSCRIPT
Protecting YourselfProtecting Yourself
The overall objective is that participants The overall objective is that participants will recognize techniques for ensuring will recognize techniques for ensuring functional correctness of Personal functional correctness of Personal Protective Equipment (PPE) used for Protective Equipment (PPE) used for chemical hazard protection as it applies chemical hazard protection as it applies to a fixed Facilityto a fixed Facility
OverviewOverview
Worker protection strategiesWorker protection strategiesTechniques for ensuring functional Techniques for ensuring functional
correctness of PPE use for chemical correctness of PPE use for chemical hazard protectionhazard protection
The purpose and use of PPEThe purpose and use of PPECare of PPE Care of PPE Decontamination proceduresDecontamination procedures
ExpectationsExpectations
Define worker protection strategyDefine worker protection strategy Identify purpose and use of PPEIdentify purpose and use of PPE Identify the major difference between the four EPA Identify the major difference between the four EPA
levels of PPElevels of PPE List the limitations of chemical protective clothingList the limitations of chemical protective clothing Recognize the purpose of decontaminationRecognize the purpose of decontamination Recognize two major types of contaminationRecognize two major types of contamination Recognize factors that affect permeationRecognize factors that affect permeation Recognize three methods of decontaminationRecognize three methods of decontamination
Personal Protective EquipmentPersonal Protective Equipment
Engineering controlsEngineering controlsAdministrative controlsAdministrative controlsPurpose: “MATCH THE PROTECTION TO Purpose: “MATCH THE PROTECTION TO
THE HAZARD!”THE HAZARD!”Function: Place an engineered barrier Function: Place an engineered barrier
between the worker and the hazardbetween the worker and the hazardPPE MUST BE USED FOR ALL SPILL PPE MUST BE USED FOR ALL SPILL
RESPONSESRESPONSES
Personal Protective EquipmentPersonal Protective Equipment
Careful selection and use of Careful selection and use of
adequate PPE should protect theadequate PPE should protect the
respiratory system, skin, eyes, face,respiratory system, skin, eyes, face,
hands, feet, head, body, and hearinghands, feet, head, body, and hearing
Chemical Protective ClothingChemical Protective Clothing
Criteria for selectionCriteria for selection Chemical resistanceChemical resistance DurabilityDurability FlexibilityFlexibility Temperature resistanceTemperature resistance Service and shelf lifeService and shelf life CleanabilityCleanability DesignDesign SizeSize Brightly colored suitsBrightly colored suits
DefinitionsDefinitions
Chemical resistance- Ability of protective Chemical resistance- Ability of protective materials to resist penetration, degradation, materials to resist penetration, degradation, and permeationand permeation
Durability- Ability of the material to resist Durability- Ability of the material to resist punctures, abrasions, tears, and other wear punctures, abrasions, tears, and other wear factorsfactors
Flexibility- Ability of the material to move with Flexibility- Ability of the material to move with relative ease during work operationsrelative ease during work operations
DefinitionsDefinitions
Temperature resistance- Ability of the material to Temperature resistance- Ability of the material to maintain chemical resistance during temperature maintain chemical resistance during temperature extremes (especially heat) and to maintain flexibility extremes (especially heat) and to maintain flexibility during cold temperaturesduring cold temperatures
Service and shelf life- Ability of the material to resist Service and shelf life- Ability of the material to resist aging and deterioration and the length of time the aging and deterioration and the length of time the material can remain on the shelf and still be usable at material can remain on the shelf and still be usable at manufacturedmanufactured specificationsspecifications
Cleanability- Ability of the material to withstand Cleanability- Ability of the material to withstand decontamination and to release contact substancesdecontamination and to release contact substances
DefinitionsDefinitions
Design- Fully encapsulating versus multiple Design- Fully encapsulating versus multiple pieces; e.g., hoods, face pieces, gloves, boots, pieces; e.g., hoods, face pieces, gloves, boots, location of zippers, buttons, seams, pockets, etc location of zippers, buttons, seams, pockets, etc
Size-Size- Directly related to comfortDirectly related to comfort Brightly colored suits- Aid in visual identification of Brightly colored suits- Aid in visual identification of
personnel. Darker colors absorb radiant heat from personnel. Darker colors absorb radiant heat from external sources and transfer it to the worker, external sources and transfer it to the worker, increasing risk of heat-related problemsincreasing risk of heat-related problems
Selection of Chemical Protective Selection of Chemical Protective ClothingClothing
PermeationPermeationDegradationDegradationPenetrationPenetration
Inspection ProgramInspection Program
Is the clothing correct as specified in the Is the clothing correct as specified in the job plan?job plan? Outer suitOuter suit Inner and outer glovesInner and outer gloves BootsBoots SealsSeals
Inspection ProgramInspection Program
Is the material in good condition?Is the material in good condition? New or used New or used CutsCuts AbrasionsAbrasions PullsPulls TearsTears
Inspection ProgramInspection Program
Are seams, zippers, and buttons sound?Are seams, zippers, and buttons sound?
Are there any signs of chemical attack?Are there any signs of chemical attack? DiscolorationDiscoloration SofteningSoftening BrittlenessBrittleness CrackingCracking
Is specified gear holding up as designed?Is specified gear holding up as designed?
EPA Recommended GuidelinesEPA Recommended Guidelines
Levels of protectionLevels of protection Level A - Moon suitLevel A - Moon suit Level B - Supplied airLevel B - Supplied air Level C- Full-face canisterLevel C- Full-face canister Level D- CoverallsLevel D- Coveralls
Level A Level A
Highest level of respiratory, skin and eye Highest level of respiratory, skin and eye protection protection
SCBA-type air-supplied respiratorSCBA-type air-supplied respiratorFully encapsulating suitFully encapsulating suit
Level BLevel B
Highest level of respiratory Highest level of respiratory protection but limited skin protection but limited skin protectionprotection
Chemical-resistant Chemical-resistant clothingclothing
Level CLevel C
Limited level of respiratory and skin Limited level of respiratory and skin protection from airborne hazardsprotection from airborne hazards
Full-face canister respirator (APR)Full-face canister respirator (APR) Chemical-protective clothing with Chemical-protective clothing with
hoodhood Inner and outer glovesInner and outer gloves Chemical-resistant shoesChemical-resistant shoes Optional items like hard hat, boot Optional items like hard hat, boot
and glove covers, and possibly a and glove covers, and possibly a five-minute escape packfive-minute escape pack
Level DLevel D
No respiratory and limited skin protectionNo respiratory and limited skin protection Disposable coverallsDisposable coveralls Safety shoesSafety shoes Safety glasses or gogglesSafety glasses or goggles Hard hatHard hat GlovesGloves Optional: five-minute escape pack for Optional: five-minute escape pack for
emergency egressemergency egress
Limitations of PPELimitations of PPE
Impairs mobility, vision, and communicationImpairs mobility, vision, and communication Incompatible with other PPEIncompatible with other PPEProblems with mask fit (facial hair, dentures, Problems with mask fit (facial hair, dentures,
glasses, caps, 10% body weight change)glasses, caps, 10% body weight change)Heat stressHeat stressCan cause physical and psychological stressCan cause physical and psychological stressHinders work performance and active work Hinders work performance and active work
timetime
Respiratory ProtectionRespiratory Protection
Atmospheric hazardsAtmospheric hazards Gases/VaporsGases/Vapors ParticulatesParticulates Oxygen deficiencyOxygen deficiency
Mask Fit TestsMask Fit Tests
QuantitativeQuantitative Pass/fail pressure test using test agentPass/fail pressure test using test agent
QualitativeQualitative Smoke testSmoke test
Types of RespiratorsTypes of Respirators
Air-purifying respirators (APR/PAPR) Air-purifying respirators (APR/PAPR) Continuous flow respiratorsContinuous flow respiratorsAtmosphere-supplying respirators (SAR)Atmosphere-supplying respirators (SAR)
Air-Purifying RespiratorsAir-Purifying Respirators
Utilize “purified” ambient air through a Utilize “purified” ambient air through a filtering element or absorbent cartridgefiltering element or absorbent cartridge
Negative pressure respiratorsNegative pressure respirators
Air-Purifying RespiratorsAir-Purifying Respirators
LimitationsLimitations Atmosphere that is “Immediately Dangerous to Life Atmosphere that is “Immediately Dangerous to Life
and Health” (IDLH)and Health” (IDLH) Entry into area or confined space where exposure Entry into area or confined space where exposure
conditions have not been characterizedconditions have not been characterized Inadequate warning properties of identified gases or Inadequate warning properties of identified gases or
vaporsvapors Unknown service life of sorbent materials in respirator Unknown service life of sorbent materials in respirator
cartridgescartridges High relative humidityHigh relative humidity
Air-Purifying RespiratorsAir-Purifying Respirators
DisadvantagesDisadvantages Limited duration of protectionLimited duration of protection Limited protection Limited protection Constant monitoringConstant monitoring Detectable hazards onlyDetectable hazards only
CharacteristicsCharacteristics Chemical cartridgesChemical cartridges Mechanical filtersMechanical filters
Air-Supplying Respirators Air-Supplying Respirators
Air-line with escape SCBAAir-line with escape SCBA Self-contained breathing apparatus Self-contained breathing apparatus
(SCBA)(SCBA) LimitationsLimitations
The maximum MSHA/NIOSH approved The maximum MSHA/NIOSH approved hose length is 300 feethose length is 300 feet
Mobility impairmentMobility impairment The air lines are vulnerable to damage, The air lines are vulnerable to damage,
contamination, or degradationcontamination, or degradation The worker needs to retrace steps when The worker needs to retrace steps when
leaving the work arealeaving the work area Someone needs to supervise and monitor Someone needs to supervise and monitor
the air supplythe air supply
Continuous Flow RespiratorsContinuous Flow Respirators
Powered-air purifying respirator (PAPR)Powered-air purifying respirator (PAPR) Continuous flow of filtered air to the facepieceContinuous flow of filtered air to the facepiece
Air-Purifying RespiratorsAir-Purifying Respirators
Warning properties areessential
to safe use of air-purifying respirators since they allow
detection of contaminant breakthrough should it occur
Air-Purifying RespiratorsAir-Purifying Respirators
RESPIRATOR CARTRIDGES/FILTERS
COLOR APPROVED FORBlack Organic VaporsYellowYellow Organic Vapors and Acid GasesWhiteWhite Acid GasesGreenGreen Ammonia and MethylaminePurplePurple HEPA, Dusts, Fumes and MistsOrangeOrange stripestripe for Dusts, Fumes and Mists in
combination with vapor or gas
Air-Purifying RespiratorsAir-Purifying Respirators
APF Respirator
10 Half-facepiece Respirator with Vapor Cartridge or Filter
50 Full-facepiece Respirator with Vapor Cartridge or Filter
1,000 Full-facepiece Supplied Air Respirator operated in Pressure - demand mode.
1,000 to Full-facepiece Self-contained 10,000 breathing apparatus operated in
Pressure demand mode
DecontaminationDecontamination
PurposePurpose To protect workers from contaminantsTo protect workers from contaminants Removes or neutralizes contaminants that Removes or neutralizes contaminants that
have accumulated on personnel and have accumulated on personnel and equipmentequipmentProtective clothingProtective clothingRespiratory protection equipmentRespiratory protection equipmentTools and instrumentsTools and instrumentsVehiclesVehiclesOther fixed facility equipmentOther fixed facility equipment
DecontaminationDecontamination
Types of ContaminationTypes of Contamination Surface- Remains on the surfaceSurface- Remains on the surface Permeated- Go into or throughPermeated- Go into or through
DecontaminationDecontamination
Rate of Permeation FactorsRate of Permeation Factors
Contact timeContact time
ConcentrationConcentration
TemperatureTemperature
Contaminant Molecule SizeContaminant Molecule Size
Physical State of ContaminationPhysical State of Contamination
Decontamination MethodsDecontamination Methods
Physical removalPhysical removalChemical removalChemical removalCombination methodsCombination methods
Equipment DecontaminationEquipment Decontamination
Degree of contaminationDegree of contaminationNon-cleanable partsNon-cleanable partsDiscardedDiscarded
Equipment DecontaminationEquipment Decontamination
Hand toolsHand toolsTables, shelves and palletsTables, shelves and palletsLarge equipmentLarge equipment