1 PPT00203 Bureau of Workers Compensation PA Training for Health amp Safety PATHS 29 CFR 19101001 Subpart Z Toxic and Hazardous Substances Standard Applicability ID: 909288
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Asbestos Awareness & Safety
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Bureau of Workers’ Compensation PA Training for Health & Safety (PATHS)
29 CFR 1910.1001, Subpart Z – Toxic and Hazardous Substances
Slide2Standard Applicability
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29 CFR 1910.1001, Subpart Z – Toxic and Hazardous SubstancesThis Standard applies to:All occupational exposures to asbestos in all industries covered by the OSH ActDoes NOT apply to:Construction work per 29 CFR 1910.12(b).(Construction work is covered in 29 CFR 1926.1101)Ship repairing, shipbuilding and shipbreaking per 29 CFR 1915.4 (Such exposures are covered by 29 CFR 1915.1001)
Slide3Topics
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Types of AsbestosMaterials Containing AsbestosHealth HazardsHealth EffectsPotential Locations
Risks
Slide4Terms
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ACM: Asbestos-containing material with more than 1% asbestos PACM: Presumed asbestos containing material Fiber: Particulate form of asbestos 5 microns or longer with a length-to-diameter ratio of at least 3 to 1 (3:1). Thermal System Insulation (TSI): ACM applied to pipes, fittings, boilers, breeching, tanks, ducts or other structural components to prevent heat loss or gain
Slide5What is Asbestos?
→ Set of six naturally occurring silicate minerals.→ Has been used commonly in a variety of building construction materials for insulation and as a fire retardant. → All have in common their asbestiform habit: long, (1:20) thin fibrous crystals.
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Ruler indicates 1cm
Slide6Types of Asbestos
Chrysolite (white): used in insulation, fireproofing, sound proofing.Amosite (brown): used in high friction applications such as brake shoes, clutches.Crocidolite (blue): not as commonly used.
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Slide7Materials Containing Asbestos
Building Materials such as: → Roofing shingles → Ceiling and floor tiles → Paper products → Asbestos cement products Friction Products: → Automobile clutch → Brake pads → Transmission parts
Heat-resistant fabrics, packaging, gaskets, and coatings
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Slide8Health Hazards
Inhalation of asbestos fibers can cause serious illnesses, including: ▪ Malignant lung cancer ▪ Mesothelioma (formerly rare cancer) ▪ Asbestosis (type of pneumoconiosis)
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X-ray of Asbestosis; note fibers in lungs
Slide9Health Effects
Asbestos fibers enter alveoli in lungs, irritate thin membrane.Leaves scar tissue that oxygen can’t penetrate.As more alveoli are affected oxygen starvation sets in – severe disability or death.Pleura – membrane lining in lungs – can also be affected.Asbestos fibers may migrate from lungs into pleura causing rare form of cancer.Many harmful effects do not appear for 20 or more years.
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Slide10Health Effects
Smoking can further increase risk from asbestos exposure.Asbestos fibers may irritate lungs = more sensitive to cancer from cigarette smoke.Smokers who’ve worked with asbestos face as much as 90 times more risk!People who’ve quit smoking after working with asbestos reduce risk of cancer by 50% in 5 years.
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Slide11When is Asbestos Hazardous?
When asbestos-containing materials (ACM) are damaged or disturbed by: - repair - remodeling - - demolition activities Microscopic fibers become airborne and can be inhaled into lungs causing significant health problems.
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Slide12Potential Locations
Thermal system insulation (TSI): furnaces, ducts, boilers, hot water pipes.Sprayed-on/troweled-on surfacing materials on ceilings/walls.Resilient asphalt and vinyl flooring.Suspended ceiling tiles.Fireproof drywall.Fireproof drapes/curtains.
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Slide13Potential Locations
Roofing felts.Shingles.Exterior siding shingles.Sprayed-on fireproofing on metal beams/columns.High temperature gaskets and insulation.
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Slide14Friable Asbestos
Friable asbestos = any asbestos containing material that, when dry, is easily crumbled or pulverized to powder by hand.Common examples: > Acoustic ceilings and tiles. > Many types of plasters. > Wallboard. > Joint compound (or "mud“). > Thermal insulation for water heaters/pipes.
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Slide15Friable Asbestos
Use of asbestos in these products banned by 1978; those already in marketplace remained on shelves used in construction for many years after. Still commonly found in homes/buildings today.
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Slide16Non-Friable Asbestos
Usually found bonded into other materials.Fibers are harder to break down into powder.Can still be released by cutting, grinding, sanding.
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Slide17Banned Products & Uses
Toxic Substances Control Act (TSCA): banned manufacture, importation, processing and distribution in Commerce of certain asbestos-containing products:Corrugated paperRollboardCommercial paperSpecialty paperFlooring felt“Regulation continues to ban use of asbestos in products that have not historically contained asbestos,…referred to as “new Uses” of asbestos”
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Slide18Banned Products & Uses
Clean Air Act (CAA)Pipe insulation, block insulation for boilers and hot water tanksSpray applied surfacing with more than 1% asbestosConsumer Product Safety ActAsbestos in artificial fireplace embers and wall patching compounds.
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Slide19Products Not Banned
Examples of ACM products not banned include:Pipeline wrapRoofing feltVinyl floor tileMillboardCement pipeAutomatic transmission componentsClutch facingsFriction materialsDisk brake pads
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Slide20Damage/Deterioration
Always avoid any contact with asbestos containing materials (ACM) that:Disturbs its position or arrangement.Disrupts its shape or renders it friable.Generates any visible debris from it.Visibly damaged, degraded or friable ACM: always an indicator surface debris/dust could be contaminated with asbestos!
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Slide21Sources of Damage
Resulting in Fiber Release:Impact from other objectsExposure to the elementsVibrationFans and blowersChemical spills, leaks, or fumes
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Slide22Wet/Water-Logged
Exposure to wet/water-logged material possibly containing asbestos doesn’t pose the problems exposure to “friable” asbestos does.Even if wet should still wear PPE = Tyvek Suit Goggles/safety glasses Gloves Boots
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Slide23Who is at Risk?
Risk increases if:Your work area contains friable asbestos (e.g. sprayed on insulation).You work near a construction or renovation area containing asbestos.You are engaged in maintenance or custodial activities in areas containing asbestos.
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Slide24Suspect Asbestos Present:
Do not disturb!Notify supervisor immediately.Isolate the area.Area/material should be tested by qualified personnel.Material removed & disposed of
by qualified abatement personnel.
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Slide25Remember
Be safe when dealing with suspected asbestos.If you’re not sure, treat the material as ACM.Protect yourself, use good judgment.Come in safe, go home safe!
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Slide26Contact Information
Health & Safety Training Specialists1171 South Cameron Street, Room 324Harrisburg, PA 17104-2501(717) 772-1635RA-LI-BWC-PATHS@pa.gov
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Slide27Questions
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