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0.0015—23.5%Oxygen;0.0005%—2.5%Methane;0.0005—1.0%Carbon Monoxide;0.001—0.025%Hydrogen Sulfide;Nitrogen Gas balance
<br /> EU/CLP.Classification criteria not met
<br /> Respiratory sensitization
<br /> UN GHS.Classification criteria not met
<br /> EU/CLP.Classification criteria not met
<br /> Serious eye damage/Irritation
<br /> UN GHS.Classification criteria not met
<br /> Route(s) of entry/exposure . Inhalation, Skin, Eye, Ingestion
<br /> Potential Health Effects
<br /> Inhalation
<br /> Acute (Immediate) . A potential health hazard associated with this gas mixture is the inhalation of
<br /> Hydrogen Sulfide, a component of this gas mixture. Such over-exposures may occur if
<br /> this gas mixture is used in a confined space or other poorly-ventilated area. Over-
<br /> exposures to Hydrogen Sulfide can cause dizziness, headache, nausea, respiratory
<br /> arrest, coma, or unconsciousness. Continuous inhalation of low concentrations of
<br /> Hydrogen Sulfide may cause olfactory fatigue, so that the odor is no longer an
<br /> effective warning of the presence of this gas. Inhalation over-exposures to
<br /> atmospheres containing more than the Threshold Limit Value of Carbon Monoxide (25
<br /> ppm), another component of this gas mixture, can result in serious health
<br /> consequences. Carbon Monoxide is classified as a chemical asphyxiant, producing a
<br /> toxic action by combining with the hemoglobin of the blood and replacing the available
<br /> oxygen. Through this replacement, the body is deprived of the required oxygen, and
<br /> asphyxiation occurs. Since the affinity of Carbon Monoxide for hemoglobin is about
<br /> 200-300 times that of oxygen, only a small amount of Carbon Monoxide will cause a
<br /> toxic reaction to occur. Carbon Monoxide exposures in excess of 50 ppm will produce
<br /> symptoms of poisoning if breathed for a sufficiently long time. If this gas mixture is
<br /> released in a small, poorly ventilated area (i.e. an enclosed or confined space),
<br /> symptoms which may develop include the following: bright red lips and fingernails,
<br /> headache progessing to heart palpitations, staggering, confusion, nausea, dizziness
<br /> and unconsciousness with higher concentration exposures. For exposures greater
<br /> than 2500 ppm there is potential for collapse and death before warning symptoms are
<br /> experienced. If the gas mixture being used contains less than 19.5% Oxygen and is
<br /> released in a small, poorly ventilated area (i.e. an enclosed or confined space), an
<br /> oxygen-deficient environment may occur. Individuals breathing such an atmosphere
<br /> may experience symptoms which include headaches, ringing in ears, dizziness,
<br /> drowsiness, unconsciousness, nausea, vomiting, and depression of all the senses.
<br /> Under some circumstances of over-exposure, death may occur. The following effects
<br /> associated with decreased levels of oxygen: increase in breathing and pulse rate,
<br /> emotional upset, abnormal fatigue, nausea, vomiting, collapse, loss of consciousness,
<br /> convulsive movements, respiratory collapse and death.
<br /> Chronic (Delayed) . Chronic exposure to oxygen-deficient atmospheres (below 18% oxygen in air) may
<br /> affect the heart and nervous system.
<br /> Skin
<br /> Acute (Immediate) . Hydrogen Sulfide, a component of this gas mixture, may be irritating to the skin.
<br /> Chronic (Delayed) . No data available
<br /> Eye
<br /> Acute (Immediate) . May cause mild irritation. Inflammation and irritation of the eyes can occur at very low
<br /> airborne concentration of Hydrogen Sulfide (less than 10 ppm). Exposure over several
<br /> hours may result in "gas eyes" or "sore eyes" with symptoms of scratchiness,
<br /> irritation, tearing and burning. Above 50 ppm of Hydrogen Sulfide, there is an intense
<br /> tearing, blurring of vision, and pain when looking at light. Over-exposed individuals may
<br /> see rings around bright lights. Most symptoms disappear when exposure ceases.
<br /> However, in serious cases, the eye can be permanently damaged.
<br /> Chronic (Delayed) . No data available
<br /> Ingestion
<br /> Acute (Immediate) . Under normal conditions of use, no health effects are expected.
<br /> Chronic (Delayed) . No data available
<br /> Mutagenic Effects . The components of this gas mixture are not reported to cause mutagenic effects in
<br /> humans.
<br /> Preparation Date: 10/August/2012 Format:EU CLP/REACH Language:English(US)
<br /> Revision Date: 16/December/2013 Page 10 of 18 OSHA HCS 1994,WHMIS,UN GHS,EU CLP,EU DSD/
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