Carbon monoxide

CAS RN: 630-08-0

Other Preventive Measures

If material not on fire and not involved in fire: Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.
Personnel protection: Avoid breathing vapors. Keep upwind ... Do not handle broken packages unless wearing appropriate personal protective equipment. Approach fire with caution.
Evacuation: If fire becomes uncontrollable or container is exposed to direct flame consider evacuation of one-third (1/3) mile radius. If material leaking (not on fire) consider evacuation from downwind area based on amount of material spilled, location and weather conditions.
SRP: Operations involving entry into tanks or closed vessels, and emergency situations, require consideration of potentially oxygen deficient, or "immediately dangerous to life and health" IDLH environments. This may necessitate use of a self-contained breathing apparatus (SCUBA), or a positive pressure supplied air respirator.
SRP: Local exhaust ventilation should be applied wherever there is an incidence of point source emissions or dispersion of regulated contaminants in the work area. Ventilation control of the contaminant as close to its point of generation is both the most economical and safest method to minimize personnel exposure to airborne contaminants. Ensure that the local ventilation moves the contaminant away from the worker.
Concentration of Interest for carbon monoxide /in nonindustrial environments/ from leaking vented combustion appliances, unvented combustion appliances, parking garages, and outdoor air: 9 ppm (8 hr) based on effects on persons with coronary artery disease. Sustained indoor concentrations exceeding outdoor concentrations may merit further investigation.
ALERT: Put generators outside. Never use a generator inside homes, garages, crawlspaces, sheds, or similar areas. Deadly levels of carbon monoxide can quickly build up in these areas and can linger for hours, even after the generator has shut off.
Never use a charcoal grill, hibachi, lantern, or portable camping stove inside a home, tent, or camper.
Do not use portable heaters or lanterns while sleeping in enclosed areas such as tents, campers, and other vehicles. This is especially important at high altitudes, where the risk of carbon monoxide poisoning is increased.
Make sure appliances are installed and operated according to the manufacturer's instructions and local building codes. ... Never service fuel-burning appliances without proper knowledge, skill and tools. Always refer to the owner's manual when performing minor adjustments or servicing fuel-burning equipment.
Install a CO alarm that meets the requirements of the current UL 2034 or CSA 6.19 safety standards. A CO alarm can provide some added protection, but it is no substitute for proper use and upkeep of appliances that can produce CO. Install a CO alarm in the hallway near every separate sleeping area of the home. Make sure the alarm cannot be covered up by furniture or draperies.
CO alarms are available for boats and recreational vehicles and should be used.
Never ignore an alarming CO alarm! It is warning you of a potentially deadly hazard. If the alarm signal sounds do not try to find the source of the CO: (a) Immediately move outside to fresh air. (b) Call your emergency services, fire department, or 911. (c) After calling 911, do a head count to check that all persons are accounted for. DO NOT reenter the premises until the emergency services responders have given you permission ... (d) If the source of the CO is determined to be a malfunctioning appliance, DO NOT operate that appliance until it has been properly serviced by trained personnel.
Never operate unvented fuel-burning appliances in any room where people are sleeping.
Never use a gas range or oven to heat a home.
Do not cover the bottom of natural gas or propane ovens with aluminum foil. Doing so blocks the combustion air flow through the appliance and can produce CO.
During home renovations, ensure that appliance vents and chimneys are not blocked by tarps or debris. Make sure appliances are in proper working order when renovations are complete.
Never leave the motor running in a vehicle parked in an enclosed or partially enclosed space, such as a garage.
Never run a motor vehicle, generator, pressure washer, or any gasoline-powered engine outside an open window, door, or vent where exhaust can vent into an enclosed area.
Steps to Reduce Exposure to Carbon Monoxide. It is most important to be sure combustion equipment is maintained and properly adjusted. Vehicular use should be carefully managed adjacent to buildings and in vocational programs. Additional ventilation can be used as a temporary measure when high levels of CO are expected for short periods of time. (1) Keep gas appliances properly adjusted. (2) Consider purchasing a vented space heater when replacing an unvented one. (3) Use proper fuel in kerosene space heaters. (4) Install and use an exhaust fan vented to outdoors over gas stoves. (5) Open flues when fireplaces are in use. (6) Choose properly sized wood stoves that are certified to meet EPA emission standards. Make certain that doors on all wood stoves fit tightly. (7) Have a trained professional inspect, clean, and tune-up central heating systems (furnaces, flues, and chimneys) annually. Repair any leaks promptly. (8) Do not idle the car inside garage.
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