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Module 1: Regulations - International Association of Fire Fighters

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Student Text IAFF Training for Hazardous Materials: Technician©<br />

Hazardous Material<br />

Identification System (HMIS)<br />

The HMIS (designed by the National Paint and Coating<br />

<strong>Association</strong>) is a comprehensive system for hazardous<br />

materials identification. This system conveys chemical<br />

identity by chemical or common names, code numbers, or<br />

other descriptive terms which clearly identify the material.<br />

The acute health, flammability, and reactivity hazards are<br />

communicated by numerical ratings inserted onto the label<br />

itself. The description <strong>of</strong> the numerical Hazard Index (HI)<br />

is shown as follows:<br />

4 Extreme Hazard<br />

3 Serious Hazard<br />

2 Moderate Hazard<br />

1 Slight Hazard<br />

0 Minimal Hazard<br />

These designations will be written with indelible ink on<br />

each section <strong>of</strong> the label (Health, Flammability, Reactivity).<br />

Information is obtained from the MSDS or other sources<br />

acceptable to OSHA.<br />

Health Hazard or Blue Section<br />

4 Extreme Highly Toxic - May be fatal on<br />

short term exposure. Special<br />

protective equipment required.<br />

3 Serious Toxic - Avoid inhalation or skin<br />

contact.<br />

2 Moderate Moderately Toxic - May be<br />

harmful if inhaled or absorbed.<br />

1 Slight Slightly Toxic - May cause slight<br />

irritation.<br />

0 Minimal All chemicals have some degree<br />

<strong>of</strong> toxicity.<br />

<strong>Module</strong> 1: <strong>Regulations</strong> 1-87

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