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Air Indoor Resources - Asbestos

Asbestos Glossary

Accessible refers to ACM material subject to disturbance by school building occupants, custodial, or maintenance personnel in the course of their normal activities.

Accredited or Accreditation refers to a personnel training or laboratory accredited in accordance with section 206 of Title II of the AHERA.

Asbestos means the asbestiform varieties of: Chrysotile (serpentine); crocidolite (riebeckite); amosite (cummingtonite/grunerite); anthophyllite; tremolite; and actinolite.

Asbestos-Containing Material (ACM) is any material or product which contains more than 1 percent asbestos by weight.

Asbestos-Containing Building Material (ACBM) is any surfacing ACM, thermal system insulation ACM, or miscellaneous ACM found in or on the interior structure and other parts of a school building.

Asbestos Debris means pieces of ACBM that can be identified by color, texture, composition, or dust, if the dust is determined to be ACM by an accredited inspector.

Damaged Friable Surfacing or Miscellaneous ACM means friable surfacing or miscellaneous ACM which has deteriorated or sustained physical damage such that the internal structure (cohesion) of the material is inadequate; or, if applicable, has delaminated from the substrate (adhesion). Such damage or deterioration may be illustrated by the separation of ACM into layers; separation of ACM from the substrate; flaking, blistering, or crumbling of the ACM surface; water damage; significant or repeated water stains, scrapes, gouges, mars or other signs of physical injury on the ACM. Asbestos debris originating from the ACBM may also indicate damage.

Damaged or Significantly Damaged Thermal System Insulation (TSI) ACM means thermal system insulation ACM on pipes, boilers, tanks, ducts, and other TSI equipment where the insulation has lost its structural integrity, or its covering, in whole or in part, or is crushed, water-stained, gouged, punctured, missing, or not intact such that it is not able to contain fibers. Damage may be further illustrated by occasional punctures, gouges or other signs of physical injury to ACM; occasional water damage on the protective coverings.

Encapsulation means 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 encapsulation creates a membrane over the surface or penetrates the material and binds its components together such as a sealant.

Enclosure means an airtight, impermeable, permanent barrier around ACBM to prevent the release of asbestos fibers into the air.

Fiber Release Episode means any uncontrolled or unintentional disturbance of ACBM resulting in any visible emissions.

Friable refers to dry material contained in a school building that can be crumbled, pulverized, or reduced to powder by hand pressure, and includes previously nonfriable material that has become damaged.

Functional Space means a room, group of rooms, or homogeneous area (including crawl spaces or the space between a dropped ceiling and the floor or roof deck above), such as classroom(s), a cafeteria, gymnasium, hallway(s) as designated for the accredited person to inspect and prepare management plans, design abatement projects, or conduct response actions.

High-Efficiency Particulate Air (HEPA) refers to a filtering system capable of trapping and retaining at least 99.97 percent of all particles 0.3 microns (1X10-6) in diameter or larger.

Local Education Agency means:

  1. Any local educational agency as defined in section 198 of the Elementary and Secondary Education Act of 1965 (20 U.S.C. 3381).
  2. The owner of any nonpublic, nonprofit elementary or secondary school building.
  3. 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.).
Miscellaneous Material encompasses interior building material on structural components, structural members or fixtures, such as floor and ceiling tiles, and does not include surfacing material or thermal system insulation.

Nonfriable means material in a school building which when dry cannot be crumbled, pulverized, or reduced to powder by hand pressure.

Operations and Maintenance Program means a program of work practices to maintain friable ACBM in good condition, ensure cleanup of asbestos fibers previously released, and prevent further release by minimizing and controlling friable ACBM disturbance or damage.

Potential Damage means circumstances in which:

  1. Friable ACBM is in an area regularly used by building occupants, including maintenance personnel, in the course of their normal activities.
  2. Indications that there is a reasonable likelihood that the material or its covering will become damaged, deteriorated, or delaminated due to factors such as changes in building use, changes in operations and maintenance practices, or changes in occupancy.  

Potential Significant Damage means circumstances in which:

  1. Friable ACBM is in an area regularly used by building occupants and maintenance personnel in the course of their normal activities.
  2. Indications that there is a reasonable likelihood that the material or its covering will become significantly damaged, deteriorated, or delaminated due to factors such as changes in building use, changes in operations and maintenance practices, or changes in occupancy.
  3. The material is subject to major or continuing disturbance, due to factors including, but not limited to, accessibility, or under certain circumstances, vibration or air erosion.
Preventive Measures means actions taken to reduce disturbance of ACBM or otherwise eliminate the reasonable likelihood of the material's becoming damaged or significantly impaired.

Removal means the taking out or the stripping of all ACBM from a damaged area, a functional space, or a homogeneous area in a school building.

Repair means returning damaged ACBM to an undamaged condition or to an intact state so as to prevent fiber release.

Response Action means a method, including removal, encapsulation, enclosure, repair, operations and maintenance, to protect human health and the environment from friable ACBM.

Routine Maintenance Area means an area, such as a boiler room or mechanical room, that is not normally frequented by students in which maintenance employees or contract workers regularly conduct maintenance activities.

School means any elementary or secondary school as defined in section 198 of the Elementary and Secondary Education Act of 1965 (20 U.S.C. 2854).

School Building means:
  1. Any structure suitable for use as a classroom, including a school facility such as a laboratory, library, school eating facility, or facility used for the preparation of food.
  2. Any gymnasium or other facility which is specially designed for athletic or recreational activities for an academic course in physical education.
  3. Any other facility used for the instruction or housing of students, or for the administration of educational or research programs.
  4. Any maintenance, storage, or utility facility, including any hallway, essential to the operation of any facility described in this definition of “school building'” under paragraphs (1), (2), or (3).
  5. Any portico or covered exterior hallway or walkway.
  6. Any exterior portion of a mechanical system used to condition interior space.
Significantly Damaged Friable Surfacing and Miscellaneous ACM means damaged friable surfacing and miscellaneous ACM where the damage is extensive and severe.

State means a State, the District of Columbia, the Commonwealth of Puerto Rico, Guam, American Samoa, the Northern Marianas, the Trust Territory of the Pacific Islands, and the Virgin Islands.

Surfacing ACM means surfacing material that is ACM.

Surfacing Material means material in a school building that is sprayed-on, trowel-applied, or otherwise applied to surfaces, such as acoustical plaster on ceilings and fireproofing materials on structural members, or other materials on surfaces for acoustical, fireproofing, or other purposes.

Thermal System Insulation means material in a school building applied to pipes, fittings, boilers, breeching, tanks, ducts, or other interior structural components to prevent heat loss or gain, or water condensation, or for other purposes.

Thermal System Insulation (TSI) ACM means TSI that is ACM.
Vibration means the periodic motion of friable ACBM which may result in the release of asbestos fibers.

Contact Information

Wendy Murphy
325 West Gaines Street
Suite, 1054
Tallahassee, FL 32399
Phone: (850) 245-9295