Identifying Asbestos

1. Asbestos

2. General Overview
1.3 million workers exposed in the U.S.
• Construction Industry
• renovation, demolition heaviest
exposures
General Industry in the U.S.
• manufacture of asbestos products
• automotive brake and clutch repair
• housekeeping, custodial

3. Six Types of Asbestos
Asbestos is composed of six different types of
natural minerals:
•Chrysotile
•Amosite
•Crocidolite
•Tremolite
•Actinolite
•Anthophyllite
Most
common
types

4. Properties of Asbestos
• Naturally occurring fibrous minerals
• Good tensile strength
• Flexibility
• Heat resistant
• Electrical resistance
• Good insulation
• Chemical resistant
Asbestos ore
Asbestos fibers

5. Uses of Asbestos
• Thermal system insulation
• Surfacing materials
• Reinforcement of materials
• Fireproofing
• Acoustic and decorative
plaster
• Textiles
Asbestos “CAB” siding
Asbestos insulated pipe in
utility space

6. Uses of Asbestos
(continued)
Vinyl flooring
Sprayed-on fireproofing material
• Friction materials (brakes,
clutches, etc.)
• Asphalt and vinyl felts
• Papers and adhesives
• Flooring and roofing materials
• Filters, sealants, caulk, and gaskets

7. Where is asbestos generally found?

8. WHAT DOES ASBESTOS LOOK LIKE

9. WHAT DOES ASBESTOS LOOK LIKE

10. Some Asbestos-Containing Materials
(This list does not include every product/material that may contain asbestos. It is
intended as a general guide to show which types of materials may contain asbestos.)
• Cement Pipes
• Cement Wallboard
• Cement Siding
• Asphalt Floor Tile
• Vinyl Floor Tile
• Vinyl Sheet Flooring
• Flooring Backing
• Construction Mastics (floor tile, carpet,
ceiling tile, etc.)
• Acoustical Plaster
• Decorative Plaster
• Textured Paints/Coatings
• Ceiling Tiles and Lay-in Panels
• Ceiling Tiles and Lay-in
Panels
• Spray-Applied Insulation
• Blown-in Insulation
• Fireproofing Materials
• Taping Compounds (thermal)
• Packing Materials (for
wall/floor penetrations)
• High Temperature Gaskets
• Laboratory Hoods/Table Tops
• Laboratory Gloves
• Fire Blankets
• Fire Curtains

11. Some Asbestos-Containing Materials
(Continued)
• Electric Wiring Insulation
• Chalkboards
• Roofing Shingles
• Roofing Felt
• Base Flashing
• Thermal Paper Products
• Fire Doors
• Caulking/Putties
• Adhesives
• Wallboard
• Joint Compounds
• Vinyl Wall Coverings
• Spackling Compounds
• Elevator Equipment Panels
• Elevator Brake Shoes
• HVAC Duct Insulation
• Boiler Insulation
• Breaching Insulation
• Ductwork Flexible Fabric
Connections
• Cooling Towers
• Pipe Insulation (corrugated air-
cell, block, etc.)
• Heating and Electrical Ducts
• Electrical Panel Partitions
• Electrical Cloth
• Electric Wiring Insulation

12. ASBESTOS AWARENESS -DEFINITIONS
Asbestos: chrysotile, amosite, crocidolite, tremolite, anthophyllite, actinolite, and any of
these minerals that have been chemically altered; includes PACM
ACM: "asbestos-containing material," any material containing > 1% asbestos
Asbestos-containing building material (ACBM): Surfacing ACM, thermal system insulation
ACM, or miscellaneous ACM that is found in or on interior structural members or other
parts of a school building.
Encapsulation: The treatment of ACBM with a material that surrounds or embeds asbestos
fibers in an adhesive matrix to prevent the release of fibers, as the encapsulant creates a
membrane over the surface (bridging encapsulant) or penetrates the material and binds its
components together (penetrating encapsulant).
Enclosure: Is an airtight, impermeable, permanent barrier around ACBM to prevent the
release of asbestos fibers into the air.

13. ASBESTOS AWARENESS -DEFINITIONS
continued:
Friable: When referring to material in a school building means that the material, when dry,
may be crumbled, pulverized, or reduced to powder by hand pressure
Nonfriable: Means material in a school building which when dry may not be crumbled,
pulverized, or reduced to powder by hand pressure.
School Building: Any structure suitable for use as a classroom, including a school facility such
as a laboratory, library, school eating facility, or facility used for school purposes.
Local education agency The Tribe, as an administrative director of the school, qualifies as a
LEA pursuant to 40 C.F.R. § 763.83. and must ensure compliance among schools.
• Any local educational agency as defined in section 198 of the Elementary and Secondary
Education Act of 1965 (20 U.S.C. 3381).
• The owner of any nonpublic, nonprofit elementary, or secondary school building.
• The governing authority of any school operated under the defense dependent's education system
provided for under the Defense Dependents' Education Act of 1978 (20 U.S.C. 921, et seq.).