1. Chapter 6 Hazardous Chemical Identification: Hazcom, Toxicology, and DOT

2. The Hazard Communication Program
The Worker’s Right to Know act.
The purpose of this act is to ensure that the hazards associated with the handling, transport, and storage of chemicals in a plant are evaluated and transmitted to affected personal.

3. Manufacture Requirements
Analyze hazards associated with chemicals
Develop written procedures for evaluating chemicals
Document hazards and develop MSDSs and warning labels
Disseminate the information to affected individuals
Label, tag, and attach warning documentation to chemicals leaving the workplace

4. Employer Responsibility
Preparing a written HAZCOM program
Organize a hazardous chemical inventory list
Design individual SDSs (previously MSDSs)

5. Figure 6-1 HAZCOM

6. Material Safety Data Sheet
One in four workers in the U.S. handles chemicals
Development of the SDS is the responsibility of the chemical’s manufacturer

7. Figure 6-2 Sample MSDS

8. Toxicology
The science that studies the noxious or harmful effects of chemicals on living organisms
There is a relationship between dose and response

9. Exposure Limits
Exposure limits are designed to allow a process technician to get exposed to a dose of chemical that are not harmful to his/her health
Threshold limit value
Occupational exposure limits
Permissible exposure limits
Supplier recommended limits

10. Department of Transportation Labeling System
Uses a diamond shaped pattern with colors, symbols, and numbers that correspond to specific hazards.
Does not indicate the severity of the hazard.
Materials are classified into 10 categories.

12. Figure 6-3 DOT System

13. DOT Shipping Papers
Information must be in English and can be handwritten
No codes or abbreviations in the official document.
An SDS should be included with any material being shipped.

14. Hazardous Material Identification System (HMIS)
The chemical name
Health hazard
Flammability hazard
Reactivity hazard
PPE requirements

15. Figure 6-6 HMIS System

16. National Fire Protection Association
Utilizes four small diamonds arranged into one large diamond
Blue – health hazards
Red – fire hazards
Yellow – reactivity hazards
White – specific hazards

17. Figure 6-7 NFPA System