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i <br /> Physical Hazards Physical Hazards <br /> • The physical and chemical properties of Cal/OSHA has categorized chemicals into the following <br /> the chemical will determine: hazard classes: <br /> -What they will do -Flammables <br /> -Where they will do it -Combustibles <br /> -When they will do it �i -Corrosives <br /> -Why they will do it r <br /> G? -Oxidizers <br /> -Radioactive <br /> -Non-Flammable Gas <br /> -Poisons <br /> -Bio Hazards <br /> Flammables Corrosives <br /> • Flammablehazard class sign Is a flame with a red background and • The corrosive hazard class sin has white lettering <br /> white lettering. g g on <br /> • Fismmabksscan catch on fire very easily, a split black and white background. <br /> - Eamphe:rmsogne and Pmparrol i -Icon shows a hand and a metal bar being eaten away <br /> • Achemiwrs l's Flash Point(FP)is the minimum temperature at which Cion contact will cause Immediate <br /> enough vapoare present aboveCorrosives up <br /> the liquid to ignite and the <br /> material an catch on fire easily. damage to skin or eyes. J _ <br /> • Just because a materiel has reached its flash point does not mean it d l <br /> t <br /> thro <br /> n —Upon inhalation they will wase Irritation and burning of <br /> wig automatically an catch on fire. nose, a,anun s <br /> — It shier needs an ignition source for a to etch on fire the ng <br /> • The flash point of a chemical determines if the chemical Is —Upon Ingestion they will Irritate and burn the mouth, <br /> flammable or combustible. throat,and stomach <br /> According <br /> mi to OSHA and Dabler. points below 100•Fahrenhelt are 1 t —will generate heat due to the chemical reaction and can act <br /> - flash points greater than 1W Fahrenheit are combustible as a ignition source causing a fire <br /> • The lower the flash point of a chemical the higher the risk. <br /> i <br /> I <br /> Corrosives Oxidizers <br /> • Chemicals ending with"ic"are usually ACIDS. The oxidizer hazard class sign has a yellow <br /> • Chemicals ending with"ide"are usually BASES, background with black lettering. <br /> -icon Is a burning 0 which stands for Oxygen <br /> • Chemicals ending with Hydroxide are BASES. A chemical that releases Oxygen when it reads with <br /> • Corrosive acids have a pH range of 0,1,or 2. another chemical is called an"oxidizer'% <br /> • Corrosive bases have a pH of 12.5,13,or 14. Example:Hydrogen Peroxide and Nftric Acid D7DDIZER'> <br /> • These materials,also called oxidizing agents,present <br /> I--------ACID----------I----------BASE----I special hazards because they read chemically with a <br /> 0­1­2 large number of combustible organic materials,such <br /> • CORROSIVE Neutral CORROSIVE as oils,greases,solvents,paper,cloth,and wood. <br /> 4 <br />