Laserfiche WebLink
Objective <br /> 46&Lab Safety Certification • Become familiar with the Delta College Hazard <br /> Communication program. <br /> • Become familiar with safe exposure terms <br /> used in the Material Safety Data Sheets <br /> (MSDS). <br /> • Understand how toxic materials enter into the <br /> human body and how these routes of entry <br /> can be protected. <br /> Be able to select the proper Personal <br /> I <br /> Chemical Hazards Health Hazards <br /> • Prior to handling hazardous chemicals,employees should Toxicology is the science that studies the harmful effects of <br /> become familiar with the hazardous properties of the chemicals on living things. <br /> chemical. The effects of the exposure is dependent on the dose <br /> • Chemicals usually pose two types of hazards: received. <br /> —Physical hazards —Dose is the concentration of a chemical multiplied by the amount <br /> of time exposed to the chemical <br /> —Health hazards or both —Dose/response relationship Is the principle that a larger dose <br /> • By using the chemical's MSDS we can determine the causes a more severe response <br /> physical and chemical properties of each chemical and —Chemical with greater toxicity require a smaller dose for the same <br /> assess the risk that they pose, toxic effect <br /> —No significant toxic effect occurs if the dose is small enough <br /> Health Hazards Routes of Exposure <br /> • Chemical exposure levels are usually In order to properly protect one's self,it is necessary <br /> expressed in Parts Per Million to understand how the chemical can enter the body. <br /> (ppm). The principle routes of exposure are: <br /> —PPM is equal to 1 cent in 10,000 dollars —Inhalation <br /> rk¢£ —Absorption <br /> —Ingestion and 0 M <br /> —Injection. <br /> Y. `a <br /> 1 <br />