LA Asbestos Abatement flashcards
LA Asbestos Abatement · Build recall with a focused review session.
33 cards. Read the term and the definition here. The deck at the top of this page is optional.
- OSHA PEL
- Permissible exposure limit of 0.1 fibers per cubic centimeter as an 8-hour time-weighted average for asbestos under 29 CFR 1926.1101.
- Excursion limit
- A 30-minute short-term exposure limit of 1.0 fibers per cubic centimeter that must not be exceeded during asbestos work.
- RACM
- Regulated asbestos-containing material: material with more than 1% asbestos that is friable or will become friable when handled.
- Friability
- The tendency of an asbestos-containing material to crumble or be reduced to powder by hand pressure during normal handling.
- Class I work
- Asbestos work involving the removal of thermal system insulation or surfacing material, the highest-hazard OSHA work class.
- Negative pressure enclosure
- A containment maintained at least 0.02 inches of water column below adjacent spaces using HEPA-filtered exhaust units.
- Critical barrier
- Fire-rated plastic sheeting sealed over HVAC openings, doors, and penetrations to isolate the work area before abatement begins.
- Three-stage decontamination
- A clean room, shower, and equipment room sequence that workers pass through when entering and leaving the containment.
- Competent person
- An individual capable of identifying asbestos hazards and authorized to take prompt corrective action on an abatement project.
- NESHAP notification
- Written notice to EPA or the delegated state agency at least 10 working days before disturbing threshold quantities of RACM.
- AHERA inspection
- A five-year inspection of public and commercial buildings to identify and assess asbestos-containing materials.
- Homogeneous area
- A group of materials similar in appearance, texture, and installation date that can be sampled as a single unit.
- PLM analysis
- Polarized light microscopy, the standard method for identifying asbestos fiber type and percentage in bulk samples.
- Clearance criterion
- All inside air samples must be below 0.01 fibers per cubic centimeter by PCM before the containment can be released.
- Aggressive sampling
- Air sampling performed with fans and air movement to suspend settled fibers and confirm the containment is clean.
- Waste shipment record
- A manifest identifying the generator, transporter, disposal site, and quantity of asbestos waste for each load.
- Gooseneck seal
- A twist-and-fold closure of a waste bag secured with tape to prevent fiber release during handling and transport.
- B-reader
- A physician certified by NIOSH to classify chest X-rays for pneumoconiosis using the ILO classification system.
- Medical removal protection
- Employer obligation to maintain earnings and seniority for up to 18 months when a physician recommends removal from asbestos work.
- Mesothelioma
- A cancer of the pleura or peritoneum associated with asbestos exposure, with a latency of 20 to 50 years.
- Asbestosis
- Diffuse interstitial pulmonary fibrosis caused by cumulative asbestos exposure, typically appearing 15 to 30 years after first exposure.
- Thermal system insulation
- Pipe wrap, boiler lagging, and block insulation applied to control temperature; often friable and high-risk.
- Surfacing material
- Sprayed or troweled-on asbestos material such as fireproofing, acoustical plaster, and texture coats.
- Category I non-friable ACM
- Packings, gaskets, resilient floor coverings, and asphalt roofing that are non-friable and less likely to release fibers.
- Chain of custody
- A record documenting sample collection, transfer, and laboratory receipt to preserve evidentiary integrity.
- Point counting
- A PLM technique that improves accuracy when estimating low asbestos percentages in bulk samples.
- Amended water
- Water mixed with a surfactant and used during removal, bagging, and cleanup to suppress asbestos fiber release.
- Glove bag
- A sealed bag with built-in gloves used to remove small sections of pipe insulation without full containment.
- HEPA vacuum
- A vacuum with a high-efficiency particulate air filter used to clean surfaces and equipment without releasing fibers.
- Respirator fit test
- A test performed before initial respirator use and annually to verify an adequate face seal.
- Regulated area
- A work area demarcated with warning signs where asbestos exposure may exceed the PEL or excursion limit.
- Landfill daily cover
- At least 6 inches of non-asbestos material placed over asbestos waste at the end of each operating day.
- TEM clearance
- Transmission electron microscopy air analysis sometimes required for final clearance in AHERA schools and some state programs.