KY Asbestos Abatement flashcards
KY Asbestos Abatement · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Permissible exposure limit (PEL)
- OSHA limit for asbestos in construction is 0.1 fibers per cubic centimeter averaged over an 8-hour work shift, measured in the breathing zone outside the respirator.
- Excursion limit
- A 30-minute short-term exposure limit of 1.0 fiber per cubic centimeter that must not be exceeded at any time during the work shift.
- Class I asbestos work
- Removal of thermal system insulation and surfacing material containing asbestos, the highest-risk class of abatement work under OSHA.
- Class II asbestos work
- Removal of asbestos-containing materials other than thermal system insulation and surfacing material, such as floor tile, roofing, and siding.
- Competent person
- A trained individual with authority to identify hazards, inspect containment, and stop work when conditions threaten worker safety or regulatory compliance.
- Negative exposure assessment
- A documented determination by the competent person that exposures will remain below the PEL, supporting reduced monitoring and respirator requirements.
- Regulated asbestos material
- Material containing more than 1 percent asbestos by weight, or friable material that may release fibers when disturbed, triggering NESHAP requirements.
- Friable material
- Material that can be crumbled, pulverized, or reduced to powder by hand pressure and therefore readily releases airborne fibers.
- Presumed asbestos material
- Material assumed to contain asbestos until sampling and laboratory analysis prove that asbestos content is at or below 1 percent.
- Bulk sample analysis
- Laboratory testing of building material by polarized light microscopy or transmission electron microscopy to determine asbestos type and percentage.
- Mesothelioma
- A cancer of the pleural or peritoneal lining associated with asbestos exposure, typically appearing 20 to 50 years after first exposure.
- Asbestosis
- Diffuse scarring of lung tissue caused by high cumulative asbestos dose, with latency usually 15 to 30 years after exposure.
- Synergy with smoking
- Combined asbestos and tobacco exposure multiplies lung cancer risk far beyond the sum of either risk alone.
- Respirable fiber size
- Fibers roughly less than 3 micrometers in diameter and longer than 5 micrometers reach the deep lung and are counted by phase contrast microscopy.
- Take-home exposure
- Contamination carried on clothing, hair, or shoes to vehicles and homes, exposing family members to asbestos fibers.
- HEPA filter
- High-efficiency particulate air filter rated to remove at least 99.97 percent of particles 0.3 micrometers in diameter from air.
- Fit test
- A qualitative or quantitative test confirming a tight-fitting respirator seals to the face; required before use and annually thereafter.
- User seal check
- A quick positive and negative pressure check performed each time a tight-fitting respirator is donned to verify an adequate seal.
- Supplied-air respirator
- A respirator delivering Grade D breathing air from a compressor or cylinder, used when exposures exceed the assigned protection of air-purifying units.
- Respirator medical evaluation
- A physician or licensed health care provider review, often using the OSHA questionnaire, that clears a worker before respirator use or fit testing.
- Negative pressure containment
- A sealed work area kept at lower air pressure than surrounding spaces by HEPA exhaust units so air flows inward and fibers do not escape.
- Critical barrier
- Plastic sheeting sealed over openings, ducts, and surfaces to isolate the work area and prevent fiber migration during abatement.
- Three-stage decontamination
- A sequence of dirty room, shower, and clean room that removes contamination from workers before they leave the regulated area.
- Amended water
- Water mixed with a surfactant that wets asbestos fibers more effectively, reducing airborne release during removal and handling.
- Glove bag
- A sealed plastic enclosure with built-in gloves used to remove small sections of pipe insulation without releasing fibers.
- Clearance level
- The fiber concentration at or below 0.01 fibers per cubic centimeter, measured after final cleaning, that permits containment removal.
- Aggressive sampling
- Air sampling performed after disturbing settled dust with fans or blowers to verify that cleaning removed fibers from surfaces.
- Personal breathing zone sample
- An air sample collected near the worker's nose and mouth outside the respirator to measure actual exposure against the PEL.
- Waste manifest
- A shipping document tracking asbestos waste from the abatement site to an approved landfill, retained as chain-of-custody evidence.
- Emergency containment breach
- Loss of negative pressure or barrier failure that requires stopping work, isolating the area, and correcting the condition before resuming.
- Kentucky notification
- Advance notice to the Kentucky Labor Cabinet at least 10 working days before abatement begins, with limited exceptions for emergencies.
- NESHAP notification
- Advance notice to EPA or the delegated state agency before renovation or demolition involving regulated asbestos-containing material.