Identifying and Controlling Hazards
Course 101
Safety Certified Supervisor Series

MODULE TWO: HAZARD CATEGORIES

Four Cause Categories (MEEE)

1. Safety Management System (SMS)
2. Employee Performance

3. Equipment (continued)

Hazardous Materials

Nearly every production job involves the use of hazardous materials including chemicals for cleaning, stripping, or degreasing parts and equipment. Maintenance workers who enter enclosed or confined spaces are also exposed to toxic substances.

Solvents. Solvents are used to dissolve various materials. Those commonly used include:

• trichloroethylene
• toluene
• acetone
• methylene chloride
• percholoroethylene
• glycol ether
• isopropyl alcohol
• choloroform
• xylene

Exposure occurs by

• inhalation,
• ingestion, and
• skin contact.

Skin exposure may result in

• dermatitis or skin rash,
• edema or swelling, and
• blistering.

These exposures can result from chemical splashes and spills, from directly immersing one's hands into solvents and chemicals, from contact with solvent-soaked clothing or solvent-wet objects, and from the use of improper personal protective equipment. Solvents can dissolve the body's natural protective barrier of fats and oils leaving the skin unprotected against further irritation.

In addition, inhaling or ingesting solvents may affect the central nervous system, acting as depressants and anesthetics causing

• headaches,
• nausea,
• drowsiness,
• dizziness,
• complaints of irritation,
• abnormal behavior,
• general ill-feeling, and even
• unconsciousness.

These symptoms should be viewed as visible signs of potential disease. Excessive and continued exposure to certain solvents may result in liver, lung, kidney, and reproductive damage, as well as cancer.

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