Unit 7 Personal Protective Equipment

Connecticut Tank Removal Unit 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.

Connecticut Tank Removal Medical Surveillance Programs 29 CFR (f) Employers engaged in hazardous waste operations shall institute a medical surveillance program for its employees

Connecticut Tank Removal Employees covered in Program Employees 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

Connecticut Tank Removal Employees covered in Program Employees who are injured, become ill or develop signs and symptoms due to possible exposure Employees that are members of a Haz-Mat Team

Connecticut Tank Removal When Medical Exams Occur Prior to assignment Every 12 months At termination Upon indication of signs and symptoms of possible exposure, or if exposed above the PEL

Connecticut Tank Removal Minimum Contents of Exam Medical & work history Symptoms of hazardous substances Fitness for duty Ability to wear PPE and work under temperature extremes Ability to wear respiratory equipment

Connecticut Tank Removal Respiratory Protection 29 CFR (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

Connecticut Tank Removal Personal Protective Equipment Shall be selected and used which will protect employees from the hazards, and potential hazards they are likely to encounter as identified during the site characterization and analysis

Connecticut Tank Removal Respiratory Hazards Oxygen Deficiency Particulates Gases & Vapors Flammable

Connecticut Tank Removal 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)

Connecticut Tank Removal Employers Responsibility Develop a respiratory protection program Ensure employee is medically fit to use respiratory protection Ensure employee has been trained in the selection and use of respiratory protection Ensure the employee has no facial hair that will impede the seal of the respiratory protection

Connecticut Tank Removal Employers Responsibility Ensure employees are fit tested to the make, model and size of the respiratory protection to be used Provide respirators to employees Ensure respiratory protection is maintained, inspected and kept clean Evaluate Respiratory Protection Program regularly

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

Connecticut Tank Removal Criteria for Choosing an APR Adequate 0 2 MUST be present Product MUST be identified Concentration of contaminant in air MUST be identified Chemical specific cartridge MUST be used APRs MUST not be used in IDLH atmospheres APRs MUST not be used in flammable atmospheres Cartridge service life MUST be predetermined

Connecticut Tank Removal Determining Service Life Documentation from the cartridge manufacturer End of Service Life Indicator

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

Connecticut Tank Removal Criteria for Choosing an PAPR Adequate 0 2 MUST be present Product MUST be identified Concentration of contaminant in air MUST be identified Chemical specific cartridge or canister MUST be used PAPRs MUST not be used in IDLH atmospheres PAPRs MUST not be used in flammable atmospheres Cartridge & canister service life MUST be predetermined

Connecticut Tank Removal SARs Respirators supplied with air from a remote source Pressure demand or constant air flow Combination SARs have the ability to use supplied air or air purifying cartridges

Connecticut Tank Removal Criteria for using SARs Adequate 0 2 MUST be present Product MUST be identified Concentration of contaminant in air MUST be identified Air line must be protected SARs MUST not be used in IDLH atmospheres SARs MUST not be used in flammable atmospheres Length of supply hose cannot exceed three hundred feet

Connecticut Tank Removal SABA Respirators supplied with air from a remote source and has a hip mounted escape bottle Pressure demand regulator SCBAs can have dual purpose capabilities as an SABA / SCBA

Connecticut Tank Removal Criteria using SABA Product MUST be identified 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 SCBAs can be used in flammable atmospheres

Connecticut Tank Removal SCBAs Self contained air cylinders with an estimated air time of 30, 45 and 60 minutes Can be used in IDLH atmospheres Only NFPA approved SCBAs can be used in flammable atmospheres

Connecticut Tank Removal Chemical Protective Clothing CPC is designed, tested and manufactured to protect workers from harmful affects of chemical exposure to gases, vapors, and particles

Connecticut Tank Removal Chemical Protective Clothing Although many CPC fabrics are compatible to a wide variety of chemicals, there is not a single fabric compatible to all chemicals

Connecticut Tank Removal Types 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

Connecticut Tank Removal CPC Chemical Resistance Degradation Penetration Permeation Flammability

Connecticut Tank Removal Degradation A physical change to the protective fabric The melting, cracking, shrinking, or swelling of a fabric as the result of chemical contact

Connecticut Tank Removal Penetration A substance passing through a suit directly through an opening in the suit or fabric

Connecticut Tank Removal Serged Seam Sewn or stitched with visible openings

Connecticut Tank Removal Sewn & Bound Seam A raised sewn seam with a Tyvek sewn overlay Better penetration protection than the serged seam

Connecticut Tank Removal Serged & Taped Seam Serged Seam taped over to provide improved protection over the serged and serged and bound seam

Connecticut Tank Removal Taped Serged & Bound Taped serged and bound seam offering better protection than previous seams

Connecticut Tank Removal Welded Seam Heat sealed seam offering highest level of protection from chemical penetration through the seams in the suit

Connecticut Tank Removal Permeation 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

Connecticut Tank Removal Identifying Permeation Rates Identify chemical substance and concentration Utilizing 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

Connecticut Tank Removal Flammability Flash protection MUST be considered when working with flammable materials Unless specified as flash protection all CPC will burn readily

Connecticut Tank Removal Other 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,

Connecticut Tank Removal Gloves 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

Connecticut Tank Removal Level A Protection Vapor tight chemical resistive garment SCBA or SABA inside suit Inner & outer gloves Inner & outer boots Intrinsically safe two-way radio inside the suit

Connecticut Tank Removal Level 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 gloves Outer Boots

Connecticut Tank Removal Level C Protection One or two piece chemical protective garment APR or PAPR Inner and outer gloves Outer boots

Connecticut Tank Removal Level D Protection Coveralls Work boots Gloves Hard Hat Eye protection

Connecticut Tank Removal High Temp. & Flash Protection Structural Firefighters protective clothing Proximity suits Entry suits NFPA Level A garment

Connecticut Tank Removal 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

Connecticut Tank Removal Heat Related Emergencies Heat CrampsHeat ExhaustionHeat Stroke Symptoms: Muscle Cramps Heavy Perspiration Symptoms: Skin is Cold & Clammy Heavy Perspiration Headache Dizziness Nausea Symptoms: Skin is Hot & Dry Little or No Perspiration Loss of Consciousness Fast, Weak Pulse Fast, Shallow Breathing Actions: Move to cool place Offer sips of cool water Rest the affected muscle Actions: Move to cool place Sips of cool water Apply cold packs/towels Elevate legs Seek medical attention if no improvement in 30 min. Actions: Move to cool place If conscious offer sips of cool water Elevate head & shoulders CALL 911 Apply cold packs/towels