KY Asbestos Abatement study materials
KY Asbestos Abatement study resources

KY Asbestos Abatement key terms

KY Asbestos Abatement · Get comfortable with the vocabulary.

friable asbestos

Asbestos-containing material that can be crumbled, pulverized, or reduced to powder by hand pressure when dry, making fiber release likely during routine disturbance.

Related: non-friable asbestos, asbestos-containing material
non-friable asbestos

Asbestos-containing material that resists hand-pressure crumbling when dry, such as vinyl floor tile or asbestos cement; release occurs mainly when cut, sanded, or broken.

Related: friable asbestos, asbestos-containing material
asbestos-containing material

Any building material that laboratory analysis shows contains more than one percent asbestos by weight, the threshold used by federal and Kentucky regulators.

Related: friable asbestos, bulk sample
asbestosis

Progressive scarring of lung tissue caused by accumulated inhaled asbestos fibers, producing shortness of breath years after exposure and worsened by smoking.

Related: mesothelioma, latency period
mesothelioma

A rare cancer of the thin membranes lining the chest or abdomen, strongly linked to asbestos exposure, with onset typically decades after first contact.

Related: asbestosis, latency period
latency period

The interval between first asbestos exposure and diagnosis of an asbestos-related disease, commonly twenty to forty years or longer.

Related: asbestosis, mesothelioma
respirable fiber

A fiber small enough to reach the deep lung, conventionally defined for counting as longer than five micrometers with an aspect ratio of at least three to one.

Related: phase contrast microscopy, fiber release
fiber release

The liberation of airborne asbestos fibers from material when it is disturbed by cutting, sanding, grinding, sweeping, or improper handling.

Related: respirable fiber, work practice controls
NESHAP

National Emission Standards for Hazardous Air Pollutants, the federal rules governing asbestos handling during demolition and renovation, including notification, wetting, and packaging requirements.

Related: asbestos NESHAP notification, asbestos waste shipment record
asbestos NESHAP notification

A written notice to the appropriate air quality agency before regulated demolition or renovation begins, describing the project, owner, contractor, and estimated asbestos quantities.

Related: NESHAP, regulated facility
regulated facility

An institutional, commercial, or industrial structure subject to NESHAP asbestos requirements, including schools, offices, factories, and apartment buildings above a set size.

Related: NESHAP, asbestos NESHAP notification
Kentucky Division for Air Quality

The state agency that administers asbestos abatement notification, licensing, and air quality enforcement in Kentucky under its asbestos program regulations.

Related: asbestos NESHAP notification, accreditation
accreditation

Formal certification that a worker, supervisor, inspector, or project designer has completed required asbestos training and passed an examination for that discipline.

Related: competent person, asbestos abatement contractor license
asbestos abatement contractor license

A state-issued authorization allowing a business entity to perform asbestos abatement work, contingent on accredited personnel and required insurance or bonding.

Related: accreditation, competent person
OSHA permissible exposure limit

The regulatory ceiling on airborne asbestos concentration in the workplace, set as an eight-hour time-weighted average of 0.1 fibers per cubic centimeter.

Related: excursion limit, personal air sampling
excursion limit

A short-term asbestos exposure cap of 1.0 fiber per cubic centimeter averaged over thirty minutes, which must not be exceeded at any time during a shift.

Related: OSHA permissible exposure limit, personal air sampling
competent person

An individual capable of identifying asbestos hazards and authorized to take prompt corrective action, responsible for worksite inspections and supervision of abatement activities.

Related: accreditation, negative pressure enclosure
respirator fit test

A procedure confirming that a tight-fitting respirator seals against the wearer's face, performed qualitatively or quantitatively before initial use and at required intervals.

Related: half-face respirator, PAPR
half-face respirator

A tight-fitting air-purifying mask covering nose and mouth, fitted with particulate filters rated for asbestos, used for lower exposure tasks under a written program.

Related: PAPR, respirator fit test
PAPR

Powered air-purifying respirator that uses a blower to push filtered air into a loose or tight-fitting facepiece, reducing breathing resistance during abatement work.

Related: half-face respirator, HEPA filter
HEPA filter

A high-efficiency particulate air filter rated to remove at least 99.97 percent of particles 0.3 micrometers in diameter, used in respirators, vacuums, and negative air units.

Related: negative air machine, PAPR
negative pressure enclosure

A sealed work area kept at lower air pressure than surrounding spaces so air flows inward, preventing fiber escape; maintained by exhaust units with HEPA filtration.

Related: negative air machine, critical barrier
negative air machine

A HEPA-filtered exhaust unit that draws air from a containment, creating pressure differential and air changes while discharging filtered air to the outside or adjacent space.

Related: negative pressure enclosure, HEPA filter
critical barrier

A physical partition such as plastic sheeting or rigid board that seals a containment boundary and must remain intact to prevent fiber migration.

Related: negative pressure enclosure, decontamination unit
work practice controls

Procedures that reduce fiber release at the source, including wet methods, careful removal sequencing, immediate bagging of debris, and prohibition of dry sweeping.

Related: fiber release, amended water
amended water

Water mixed with a wetting agent that lowers surface tension so asbestos fibers are wetted more thoroughly, suppressing dust during removal and cleanup.

Related: work practice controls, fiber release
glove bag

A sealed plastic bag with built-in sleeves and gloves that encloses small fixtures or pipe sections so material can be removed without opening the containment.

Related: mini-enclosure, work practice controls
mini-enclosure

A small, portable containment built around a localized work area, such as a pipe run, using plastic sheeting and negative air filtration for limited removals.

Related: glove bag, negative pressure enclosure
decontamination unit

A three-stage sequence of clean room, shower, and equipment or dirty room that workers pass through to remove contamination before leaving the work area.

Related: critical barrier, personal protective equipment
personal protective equipment

Specialized clothing and gear such as disposable coveralls, respirators, gloves, and boot covers worn to prevent asbestos contact and carryout contamination.

Related: decontamination unit, respirator fit test
asbestos waste shipment record

A tracking document accompanying regulated asbestos waste from the generation site to the disposal facility, with signed receipts confirming delivery.

Related: NESHAP, waste packaging
waste packaging

Placing removed asbestos debris in leak-tight, labeled containers, typically doubled bags or drums, while still wet and before transport.

Related: asbestos waste shipment record, amended water
air monitoring

Collecting airborne samples on filters and analyzing them to estimate fiber concentrations for exposure assessment, containment verification, or clearance.

Related: phase contrast microscopy, personal air sampling
personal air sampling

Drawing air through a filter worn in the worker's breathing zone to measure individual exposure against permissible exposure limits.

Related: OSHA permissible exposure limit, air monitoring
phase contrast microscopy

The standard optical method for counting fibers on air sample filters, used for most occupational and clearance sampling but unable to distinguish asbestos from other fibers.

Related: air monitoring, respirable fiber
clearance sampling

Post-abatement air sampling and visual inspection confirming that fiber levels are below the required threshold before a containment is removed or reoccupied.

Related: air monitoring, negative pressure enclosure
bulk sample

A small physical specimen of suspect building material collected with proper technique and analyzed by an accredited laboratory to determine asbestos content.

Related: asbestos-containing material, presumed asbestos-containing material
presumed asbestos-containing material

Suspect building material that has not been sampled or analyzed and must be treated as containing asbestos until proven otherwise.

Related: bulk sample, asbestos-containing material
hazard assessment

A structured evaluation of suspect materials, their condition, accessibility, and potential for disturbance, used to set abatement priorities and control measures.

Related: bulk sample, presumed asbestos-containing material
emergency response plan

Written procedures covering containment breaches, uncontrolled fiber release, injuries, and evacuation, including notification, shutdown steps, and cleanup responsibilities.

Related: competent person, negative pressure enclosure