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Aug. 13. 2015 4:02PM HAPPY BEE'S • No. 2041 P. 17
<br /> PRWI RECEIVE®
<br /> Praxair Safety Data Sheet
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<br /> Product: Carbon Dioxide SDS No. P-4574-K
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<br /> 2OLIAIVIRDISIAENTAL HEALTH
<br /> PERMIT/SERVICES
<br /> Contaminants in the air may add to the hazard of fumes and gases. One such contaminant,
<br /> chlorinated hydrocarbon vapors from cleaning and degreasing activities, poses a special
<br /> risk.
<br /> • Do not use electric arcs in the presence of chlorinated hydrocarbon vapors—
<br /> highly toxic phosgene may be produced.
<br /> Metal coatings such as paint, plating, or galvanizing may generate harmful fumes when
<br /> heated. Residues from cleaning materials may also be harmful.
<br /> Avoid are operations on parts with phosphate residues(anti.rust, cleaning
<br /> preparations)--highly toxic phosphine may be produced.
<br /> To find the quantity and content of fumes and gases, you can take air samples. By
<br /> analyzing these samples, you can find out what respiratory protection you need. One
<br /> recommended sampling method is to take air from inside the worker's helmet Or from the
<br /> worker's breathing zone. See AWS F1,1, Method for Sampling Airborne Particulates
<br /> Generated by Welding and Allied Processes, available from the American Welding Society,
<br /> 8669 Doral Blvd., #130, Doral, FL 33166, hitp://www.aws.org.
<br /> NOTES TO PHYSICIAN:
<br /> Acute: Gases, fumes, and dusts may cause irritation to the eyes, lungs, nose, and
<br /> throat. Some toxic gases associated with welding and related processes may cause
<br /> pulmonary edema, asphyxiation, and death. Acute overexposure may Include signs and
<br /> symptoms such as watery eyes, nose and throat irritation, headache,dizziness, difficulty
<br /> breathing, frequent coughing, or chest pains.
<br /> Chronic: Protracted Inhalation of air contaminants may lead to their accumulation in the
<br /> lungs, a condition that may be seen as dense areas on chest x-rays. The severity of
<br /> change is proportional to the length of exposure, The changes seen are not necessarily
<br /> associated with symptoms or signs of reduced lung function or disease. In addition, the
<br /> changes on x-rays may be caused by non-work-related factors such as smoking, etc.
<br /> PROTECTIVE CLOTHING AND EQUIPMENT FOR WELDING OPERATIONS:
<br /> PROTECTIVE GLOVES: Wear welding gloves.
<br /> EYE PROTECTION: Wear a helmet or use a face shield with a filter lens. Select lens
<br /> par ANSI 249.1. Provide protective screens and flash goggles if needed to protect
<br /> others; select per OSHA 29 CFR 1910.133.
<br /> OTHER PROTECTIVE EQUIPMENT; Wear hand, head, and body protection. (See ANSI
<br /> Z49.1.) Worn as needed, these help prevent injury from radiation, sparks, and electrical shock,
<br /> Minimum protection includes welder's gloves and a face shield. For added protection consider
<br /> arm protectors,aprons, hats,shoulder protection, and dark, substantial clothing.
<br /> OTHER HAZARDOUS CONDITIONS OF HANDLING, STORAGE,AND USE: High-pressure
<br /> liquid andgas. Use piping and equipment adequately designed to withstand pressures to be
<br /> encountered. prevent reverse flow. Reverse flow Into cylinder may cause rupture. Use a
<br /> check valve or other prolective device in any line or piping from the cylinder. Do not strike an
<br /> arc on the cylinder. The defect produced by an are burn could lead to cylinder rupture. Never
<br /> work on a pressurized system. If there is a leak, close the cylinder valve. Slow the system
<br /> down in a safe and environmentally sound manner In compliance with all federal, state, and
<br /> local laws; then repair the leak. Never place a compressed gas cylinder where it may
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