Acrylonitrile

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

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

Definitions v Ceiling limit 10 ppm as averaged over any 15- minute period10 ppm as averaged over any 15- minute period v Action level 1 ppm as an 8-hour TWA1 ppm as an 8-hour TWA v Permissible exposure limit 2 ppm as an 8-hour TWA2 ppm as an 8-hour TWA 2a

Exposure control v Engineering controls v Work practice controls 2b

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

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

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

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

Monitoring v Additional monitoring may be performed whenever there is a change in: ProcessesProcesses EquipmentEquipment PersonnelPersonnel Work practicesWork practices 3e

Physical and health hazards v Physical hazards Flammable liquidFlammable liquid Moderate explosion hazard when exposed to flameModerate explosion hazard when exposed to flame Can react vigorously with oxidizersCan react vigorously with oxidizers 4a

Physical and health hazards v Physical hazards Potential fire hazardPotential fire hazard Releases nitrogen oxides and cyanideReleases nitrogen oxides and cyanide Fight fire with carbon dioxide, dry chemical, or alcohol foamFight fire with carbon dioxide, dry chemical, or alcohol foam 4b

Physical and health hazards v Immediate (acute) health hazards Eye irritationEye irritation SleepinessSleepiness General loss of feeling - numbnessGeneral loss of feeling - numbness CyanosisCyanosis DiarrheaDiarrhea 4c

Physical and health hazards v Immediate (acute) health hazards Inhalation is poisonousInhalation is poisonous Skin contact is poisonousSkin contact is poisonous Poisoning is immediatePoisoning is immediate Severe eye irritantSevere eye irritant 4d

Physical and health hazards v Chronic (long-term) effects CarcinogenCarcinogen Reproductive health changesReproductive health changes MutagenicMutagenic TumorigenicTumorigenic 4e

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

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

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

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

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

Emergency procedures v Written emergency action plan is required Contact personsContact persons Phone numbersPhone numbers v Remove all ignition sources 6a

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

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

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

Emergency procedures v Acrylonitrile is considered a Class 1B hazard FoamFoam CO2CO2 Dry chemicalDry chemical NO water streamsNO water streams 6e

Emergency procedures v First aid measures include: Flushing eyes with water, lifting the eyelidsFlushing eyes with water, lifting the eyelids Flushing skin with water, wash with soapFlushing skin with water, wash with soap Moving victim to fresh airMoving victim to fresh air Giving large quantities of water if swallowedGiving large quantities of water if swallowed 6f

Emergency procedures v Get medical attention immediately 6g