1 / 27

Acrylonitrile

Acrylonitrile. Regulated areas. Areas where acrylonitrile concentrations might exceed the permissible exposure limit Job titles/functions allowed to access regulated areas. 1a. Regulated areas. Tour regulated areas

Rita
Download Presentation

Acrylonitrile

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Acrylonitrile

  2. Regulated areas • Areas where acrylonitrile concentrations might exceed the permissible exposure limit • Job titles/functions allowed to access regulated areas 1a

  3. Regulated areas • Tour regulated areas • Never store or use cosmetics, food items, beverages, or smoking items in regulated areas 1b

  4. Definitions • Ceiling limit • 10 ppm as averaged over any 15-minute period • Action level • 1 ppm as an 8-hour TWA • Permissible exposure limit • 2 ppm as an 8-hour TWA 2a

  5. Exposure control • Engineering controls • Work practice controls 2b

  6. Monitoring • Detects presence of contaminants in work area • Available for all employees to observe 3a

  7. Monitoring • Ongoing monitoring depends upon: • Exposure to contaminants at or above the action level, but below the PEL (quarterly) • Exposure to contaminants above the PEL (at least every month) • Changes in personnel, processes, controls 3b

  8. Monitoring • Monitoring is required after clean-up operations • Monitoring may be stopped for individual employees under some conditions 3c

  9. Monitoring • Employees are notified in writing of monitoring results within 5 working days • Written notification must include corrective actions to reduce exposures to the PEL 3d

  10. Monitoring • Additional monitoring may be performed whenever there is a change in: • Processes • Equipment • Personnel • Work practices 3e

  11. Physical and health hazards • Physical hazards • Flammable liquid • Moderate explosion hazard when exposed to flame • Can react vigorously with oxidizers 4a

  12. Physical and health hazards • Physical hazards • Potential fire hazard • Releases nitrogen oxides and cyanide • Fight fire with carbon dioxide, dry chemical, or alcohol foam 4b

  13. Physical and health hazards • Immediate (acute) health hazards • Eye irritation • Sleepiness • General loss of feeling - numbness • Cyanosis • Diarrhea 4c

  14. Physical and health hazards • Immediate (acute) health hazards • Inhalation is poisonous • Skin contact is poisonous • Poisoning is immediate • Severe eye irritant 4d

  15. Physical and health hazards • Chronic (long-term) effects • Carcinogen • Reproductive health changes • Mutagenic • Tumorigenic 4e

  16. Work practices • Engineering controls and work practices are primary methods of exposure control • Supplement engineering controls and work practices with respirators if necessary 5a

  17. Work practices • Storage and handling procedures include the following: • Keep containers tightly closed • Never store uninhibited acrylonitrile • Store in cool, well-ventilated place • Keep from incompatible materials • “EX” type forklifts may be required 5b

  18. Work practices • Do not wear contact lenses when working with acrylonitrile • In areas where acrylonitrile exceeds the PEL, do not store or use cosmetics, lip balm, food items, or smoke 5c

  19. Work practices • Keep all surfaces free of acrylonitrile • Inspect for leaks and spills • Workers must wear impermeable clothing, eye protection, face shields, etc. 5d

  20. Work practices • Know location of washing facilities • Keep all sources of ignition away from acrylonitrile • Do not incinerate acrylonitrile cartridges, tanks, containers 5e

  21. Emergency procedures • Written emergency action plan is required • Contact persons • Phone numbers • Remove all ignition sources 6a

  22. Emergency procedures • Evacuate the area • Wear appropriate PPE until cleanup is complete • Properly dispose of waste 6b

  23. Emergency procedures • Employees not involved in emergency procedures must be: • Notified with a general alarm • Evacuated from the area • Be aware of fire hazards when exposed to flame, heat, oxidizers 6c

  24. Emergency procedures • Keep fire extinguishers and quick-drenching facilities available • Fight fires with carbon dioxide, dry chemical, or alcohol foam 6d

  25. Emergency procedures • Acrylonitrile is considered a Class 1B hazard • Foam • CO2 • Dry chemical • NO water streams 6e

  26. Emergency procedures • First aid measures include: • Flushing eyes with water, lifting the eyelids • Flushing skin with water, wash with soap • Moving victim to fresh air • Giving large quantities of water if swallowed 6f

  27. Emergency procedures • Get medical attention immediately 6g

More Related