NH Asbestos Abatement flashcards
NH 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.
- What is RACM?
- Regulated asbestos-containing material: material containing more than 1 percent asbestos by area, or any material that will be crumbled, pulverized, or reduced to powder during handling, demolition, or renovation.
- NESHAP notification timing
- Written notice of renovation or demolition involving threshold RACM quantities must reach the appropriate agency at least 10 working days before work begins, and must be updated if the start date changes.
- OSHA permissible exposure limit
- The 8-hour time-weighted average limit for asbestos is 0.1 fiber per cubic centimeter, with a separate excursion limit of 1.0 f/cc averaged over 30 minutes.
- Class I asbestos work
- Removal of thermal system insulation and surfacing material such as sprayed-on or troweled-on asbestos material; it carries the highest exposure potential and strictest controls.
- Class II asbestos work
- Removal of asbestos-containing material other than thermal system insulation or surfacing material, including floor tile, roofing, siding, and similar products.
- Class III asbestos work
- Repair and maintenance operations where asbestos-containing material is likely to be disturbed, such as small repairs that break the surface of ACM.
- Class IV asbestos work
- Maintenance and custodial activities where employees contact but do not significantly disturb asbestos-containing material, including cleanup of small amounts of dust and debris.
- Negative-pressure enclosure
- A sealed containment kept under negative pressure by HEPA-filtered exhaust units so air flows inward, preventing fiber release to occupied spaces outside the work area.
- Decontamination unit
- A three-stage unit with clean room, shower, and dirty room that workers pass through in sequence to remove contamination before leaving the containment.
- Amended water
- Water mixed with a surfactant wetting agent, used to soak asbestos material and suppress fiber release during removal, bagging, and cleanup.
- Aggressive air sampling
- Clearance sampling performed after the containment is disturbed with fans or air movers to suspend settled fibers, giving a conservative test of whether the space is clean.
- PCM clearance threshold
- The typical phase contrast microscopy clearance level is 0.01 fibers per cubic centimeter; results above that level require recleaning and resampling before containment removal.
- Third-party air monitor
- An independent consultant, not employed or controlled by the abatement contractor, who performs clearance sampling and visual inspection to verify the work area is safe for reoccupancy.
- Respirator fit test
- A test, qualitative or quantitative, that verifies a tight seal between the respirator facepiece and the wearer; it must be repeated at least annually and whenever the model or face changes.
- Medical surveillance records
- Employer records of worker medical exams and exposure monitoring; exposure records are kept 30 years and medical records for employment duration plus 30 years.
- Waste manifest
- A shipping document listing generator, location, quantity, and destination for asbestos waste, kept to prove the material reached an approved landfill.
- Friable material
- Asbestos-containing material that can be crumbled, pulverized, or reduced to powder by hand pressure when dry, and therefore releases fibers more readily.
- Category I nonfriable
- Nonfriable asbestos material such as floor tile and roofing that is not friable but may become friable if sanded, ground, or cut during renovation.
- Category II nonfriable
- Nonfriable asbestos material that is likely to become friable when disturbed, such as some cement products; it has stricter handling rules than Category I.
- Bulk sampling inspector
- A certified professional who collects suspect material samples, documents chain of custody, and sends them to an accredited laboratory for asbestos content analysis.
- Abatement project designer
- A certified professional who writes the abatement specification, selects engineering controls and work practices, and sets clearance and monitoring requirements before bidding.
- Management planner role
- A certified professional who interprets inspection findings, assesses hazard, and recommends response actions such as removal, enclosure, encapsulation, or operations and maintenance.
- Operations and maintenance plan
- A written program for managing asbestos left in place, covering notification, work practices, periodic inspection, and training for maintenance staff who may contact the material.
- Enclosure vs encapsulation
- Enclosure builds a physical barrier around ACM; encapsulation coats the material with a sealant. Both leave the asbestos in place and require ongoing monitoring and recordkeeping.
- HEPA vacuum
- A vacuum with a high-efficiency particulate air filter that traps asbestos fibers; it is used for cleanup and must never be replaced by dry sweeping or compressed air.
- Waste bagging rule
- Asbestos waste is sealed in labeled, leak-tight containers, typically 6-mil polyethylene bags or drums, and transported to an approved landfill that accepts asbestos waste.
- Annual refresher training
- Certified asbestos workers, supervisors, and inspectors must complete refresher training each year to keep their credentials valid and remain eligible to work on regulated projects.
- Stop-work authority
- The supervisor or state inspector can halt abatement when containment, PPE, or work practices fail; work resumes only after corrective action and reinspection.
- Unexpected ACM discovery
- If unanticipated asbestos is found, work stops, the area is isolated, the owner and regulator are notified, and the notification is amended before work resumes.
- NH contractor licensing
- New Hampshire requires asbestos abatement contractors to hold a state license and to staff projects with currently certified workers whose credentials are verified on site.
- Clearance visual inspection
- Before air sampling, the inspector confirms the containment has no visible dust, debris, or residue on surfaces; any visible material means the area fails and must be recleaned.
- Exposure monitoring trigger
- Initial monitoring is required unless objective data show exposures remain below the PEL; workers above the PEL or in Class I work 30 or more days per year need medical surveillance.