Asbestos - Rules of Abatement - Oregon OSHA

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Provision Class I Class II Class III Class IV Controls and work practices (continued) • HVAC isolation required • Drop cloths required • Directed ventilation required if no NEA or >PEL Also, one or more of the following controls must be used: • Negative-pressure enclosure • Glove bag for straight runs of pipe • Negative-pressure glove bag for pipe runs • Negative-pressure glove box for pipe runs • Water spray process • Mini-enclosure For removal of vinyl and asphalt flooring materials: • No sanding • HEPA vacuum • Wet methods • No dry sweeping • Chipping done in negative-pressure enclosure • Intact removal, if possible • Dry heat removal allowed • Assume contains asbestos without an analysis For removal of built-up roofing materials or asbestos-cement shingles: • Intact removal, if possible • HEPA vacuum • Wet methods, if feasible • Cutting machine misting DEQ/LRAPA Friable DEQ/LRAPA Nonfriable 38
Provision Class I Class II Class III Class IV Controls and work practices (continued) • HEPA-vacuum debris • Lower by day’s end • Control dust of unbagged material • Roof vent system protected For removal of cementitious siding, shingles, or transite panels • Intact removal, if possible • Wet methods • Lower in dust-tight chute by day’s end • Cut nail heads For removal of gaskets: • Use glove bags if not intact • Wet removal • Prompt disposal • Wet scraping Additional requirements: • Wet methods • Intact removal, if possible • Cutting, abrading, or breaking prohibited DEQ/LRAPA Friable DEQ/LRAPA Nonfriable 39
Page 1: Asbestos — Rules of Abatement Wha
Page 5 and 6: Table of Contents Background.......
Page 7 and 8: Approximately 3.2 million workers i
Page 9 and 10: specific work practices for those r
Page 11 and 12: Initial exposure assessments The de
Page 13 and 14: A licensed physician must perform o
Page 15 and 16: Other recordkeeping requirements Em
Page 17 and 18: An employer performing work in a re
Page 19 and 20: Employee information and training E
Page 21 and 22: Methods of compliance Control measu
Page 23 and 24: • Water spray process systems may
Page 25 and 26: Employers must ensure that employee
Page 27 and 28: In Class I regulated areas where a
Page 29 and 30: Hygiene facilities Decontamination
Page 31 and 32: Appendix — quick reference of pro
Page 33 and 34: Provision Class I Class II Class II
Page 35 and 36: Provision Class I Class II Class II
Page 37: Provision Class I Class II Class II
Page 41 and 42: Public Education & Conferences •
Page 44: 440-2129 (11/07) OR-OSHA

Asbestos - Rules of Abatement - Oregon OSHA

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