NONFLAMMABLE GAS MIXTURE

SECTION 2: Hazards identification

EMERGENCY OVERVIEW: This is a colorless, odorless gas mixture. Releases of this gas mixture may produce oxygen-deficient atmospheres (especially in confined spaces or other poorly-ventilated environments); individuals in such atmospheres may be asphyxiated. Isobutylene, a component of this gas mixture, may cause drowsiness and other central nervous system effects in high concentrations; however, due to its low concentration in this gas mixture, this is unlikely to occur. SYMPTOMS OF OVER-EXPOSURE BY ROUTE OF EXPOSURE: The most significant route of over-exposure for this gas mixture is by inhalation. HAZARDOUS MATERIAL IDENTIFICATION SYSTEM INHALATION: Due to the small size of an individual cylinder of this gas mixture, no unusual

Potential health effects

from over-exposure to the product are anticipated under routine circumstances of use. The chief health hazard associated with this gas mixture is when this gas mixture contains less than 19.5% Oxygen and is released in a small, poorly-ventilated

Health hazards

BLUE) 1 area (i.e. an enclosed or confined space). Under this circumstance, an oxygen-deficient environment may occur. Individuals breathing such an atmosphere may experience symptoms which include headaches, ringing in ears, dizziness, drowsiness, unconsciousness, nausea, vomiting, and depression of all the senses. Under some FLAMMABILITY HAZARD (RED) 0 circumstances of over-exposure, death may occur. The effects associated with various levels of oxygen are as follows: CONCENTRATION OF OXYGEN OBSERVED EFFECT 12-16% Oxygen: Breathing and pulse rate increase, muscular coor- dination slightly disturbed.

Physical hazards

YELLOW) 0 10-14% Oxygen: Emotional upset, abnormal fatigue, disturbed respiration. 6-10% Oxygen: Nausea, vomiting, collapse, or loss of consciousness. Below 6%: Convulsive movements, possible respiratory collapse, PROTECTIVE EQUIPMENT and death. HEALTH EFFECTS OR RISKS FROM EXPOSURE: An Explanation in Lay Terms. Over- EYES RESPIRATORY HANDS BODY exposure to this gas mixture may cause the following health effects: ACUTE: Due to the small size of the individual cylinder of this gas mixture, no unusual See Section 8 health effects from exposure to the product are anticipated under routine circumstances of use. The most significant hazard associated with this gas mixture when it contains less than 19.5% oxygen is the potential for exposure to oxygen-deficient atmospheres. Symptoms of For Routine Industrial Use and Handling Applications oxygen deficiency include respiratory difficulty, ringing in ears, headaches, shortness of breath, wheezing, headache, dizziness, indigestion, nausea, unconsciousness, and death. The skin of a victim of over-exposure may have a blue color. Additionally, Isobutylene, a component of this gas mixture, may cause drowsiness or central nervous system effects in high concentrations; however, due to its low concentration in this gas mixture, this is unlikely to occur. CHRONIC: Chronic exposure to oxygen-deficient atmospheres (below 18% oxygen in air) may affect the heart and nervous system. TARGET ORGANS ACUTE Respiratory system, eyes. CHRONIC Heart, cardiovascular system, central nervous system