1. Employee “Right-to-Know” Law 29 CFR 1926.59
Hazard Communication 4 2 3 W
Employee “Right-to-Know” Law
29 CFR

2. Standard Highlights Differentiates Between Federal & State
Hazard Determination
Written Program
Labels / Other Forms of Warnings
MSDS
Employee Information & Training
Emergency & Non-Emergency Situations

3. Haz-Com Standard FACTS: PURPOSE:
Approximately 1:4 workers are exposed to one or more of over 8,000 hazardous chemicals
23% of total US population may have been exposed to one or more hazardous chemicals
PURPOSE:
To present information and training to employees exposed to hazardous substances

4. Haz-Com Standard OSHA Promulgated Interim Rule: 1983
Compliance 5/86
Manufacturing Codes Only
OSHA Promulgated Interim Rule: 8/20/87
Compliance /20/87
Chemical Mfg..., importers, distributors to ensure MSDS’s provided with next shipment
Compliance /23/88

5. Haz-Com Standard Difference Between Federal & State Standards
MSDS = Basis for determining whether a
chemical is hazardous
Characteristics of a chemical to pose physical hazards:
Combustible
Compressed Gas
Explosivity
Oxidizer
Stability
Compatibility
Reactivity
Pyrophroic

6. The Hazard Communication Standard Requires:
HAZCOM
The Hazard Communication Standard Requires:
Written Haz-Com Program
Hazard Determination, Chemical Inventory
Material Safety Data Sheets
MSDS

7. Written Program Training In: 1. Health Hazards 2. Evaluating Hazards
3. Use of MSDS’s
4. Emergency Procedures

8. Written Communication Program
HAZCOM
Written Communication Program
Program for container labeling and other forms of hazard warning
Material Safety Data Sheet (MSDS) availability
Employee Training / Information Program
List of hazardous substances in the workplace
Inform employees of the hazards of non-routine tasks
Procedure for informing contractors & employees of the hazards associated with work in a facility

9. HAZCOM Hazard Determination Operations / Processes
Categories / Definitions
Physical / Health Hazards
Methods of Detection
Methods of Control / Protection

10. Hazardous Chemical Categories
HAZCOM
Hazardous Chemical Categories
Physical Hazards
Flammable
Reactive
Incompatibles
Oxidizer
Health Hazards
Irritants
Corrosives
Anesthetics
Sensitizers
Asphyxiants
Systemic Poisons
Biohazards

11. Chemical Inventory
Identify all Jobs and Processes Requiring the Use of
Hazardous Chemicals and List Those Chemicals
Chemical Name
Supplier name & address
MSDS available
Chemical HMIS
Container type & size
Quantity of chemical
Storage location
Operation / Process
Number of employees exposed

12. Material Safety Data Sheets
The employer must maintain copies of the required MSDS’s for each hazardous chemical used or produced in the work place and shall ensure that they are readily accessible during each work shift when employees are present

13. Major MSDS Headings Chemical Identification
Physical/Chemical Characteristics
Hazardous Ingredients
Fire and Explosion Hazard Data
Reactivity Data
Health Hazard Data
Spill, Leak, Disposal Information
Special Protection
Special Handling, Storage, Packaging
Transportation Data

14. Material Safety Data Sheets
Physical & Chemical Properties
Understanding the way chemicals behave can help haz-mat teams anticipate hazards a substance may create during an emergency
Boiling Point: Temperature at which a liquid changes to gas
Example: Water boils at 212°F
Importance: It determines whether a substance will be a liquid or gas at ambient temperature

15. Material Safety Data Sheets
Physical & Chemical Properties
Corrosivity: A compound which can quickly damage skin, metal, or other solids
Example: If strong acids or bases are stored in metal containers, they will rapidly eat through the container
Importance: Corrosives can harm skin, lungs, eyes, mouth and stomach

16. Material Safety Data Sheets
Physical & Chemical Properties
Solubility: The measure of how readily a chemical dissolves in water
Example: Alcohol readily mixes with water, but motor oil does not
Importance: If a liquid spill into a waterway and is not soluble, it will either float or sink

17. Material Safety Data Sheets
Physical & Chemical Properties
Viscosity: Having relatively high resistance to flow. Temperature effects viscosity
Example: Water has a low viscosity, while heavy crude oil has a much greater viscosity
Importance: Since viscosity changes with temperature, highly viscous materials may become runny at higher temperatures and spread rapidly

18. Material Safety Data Sheets
Physical & Chemical Properties
Specific Gravity: Ratio of density of a substance to the density of a reference substance, usually water, Specific Gravity=1
Example: Xylene has SG of 0.86 and will float on water, while FREON 113 has SG of 1.57
Importance: Chemicals that sink in waterways are difficult to clean up and/or detect

19. Material Safety Data Sheets
Physical & Chemical Properties
Vapor Pressure: The pressure characteristic at any given temperature of a vapor in equilibrium with its liquid or solid form, often expressed in “mm/hg”
Example: Vapor pressure of acetone is 400mm; that of Xylene is The higher the number the faster it will evaporate
Importance: Materials with high VP can create toxic atmospheres within work areas

20. Material Safety Data Sheets
Physical & Chemical Properties
Volatility: This refers to how readily a liquid will vaporize or evaporate
Example: Gasoline is a volatile liquid
Importance: Volatile liquid can give off vapors which may be toxic, explosive and/or asphyxiant

21. Material Safety Data Sheets
Physical & Chemical Properties
Vapor Density: Relative weight of gas or vapor as compared to air which has a vapor density of 1
Example: Methane gas has a vapor density of 0.6, and will rise, while FREON 113 has vapor density of 1.6
Importance: Vapors / gases may be toxic, explosive and / or asphyxiant

22. Material Safety Data Sheets
Physical & Chemical Properties
Flammability: The ease in which a material (gas, liquid or solid) will ignite
Example: Gasoline and acryolnitrile are flammable liquids, while propane is a flammable gas
Importance: The flammability of a substance is important to know to determine potential for a fire

23. Material Safety Data Sheets
Physical & Chemical Properties
Flash Point: Minimum temperatures at which a liquid or volatile solid will produce gases/vapors to form ignitable mixture
Example: Material Flash Point Fire Hazard
Gasoline -45°F HIGH
Acetone 0°F
MEK 24°F
Turpentine 95°F
Diesel Fuel 110°F LOW

24. Material Safety Data Sheets Physical & Chemical Properties Explosive Limits
Lower Explosive Limit ( LEL )
The minimum concentration of a substance in the air which is required for ignition. Concentrations below the LEL will not ignite and are “lean”
Upper Explosive Limit ( UEL )
The maximum concentration of a substance in the air which is required for ignition. Concentrations above the UEL will not ignite and are “rich”

25. Physical & Chemical Properties Chemistry of Fire
The symbol demonstrates that fire needs 3 things to burn
Fuel (combustibles)
Oxygen (oxidizers)
Ignition source
Oxygen
Ignition Source
Fuel

26. The Haz-Com Standard Requires
EMPLOYEE
TRAINING 2 3 1 W
CONTAINER
LABELING

27. Labels / Warnings MSDS must have: 1. Identity of Substance
2. Hazard Warnings
3. Name/Address of Mfg..
4. CAS # (some states require)

28. Haz-Com Standard MSDS:
Based on hazard determination, employers are required to retain MSDS on each hazardous substance
1. May develop their own
2. Obtain from manufacturer

29. Haz-Com Standard Information / Training:
1. Establishes written program
2. Enforces info presented on labels and MSDS
3. Used to minimize exposure
4. Provided at initial assignment

30. Employee Training Requirements
Provide information and training to employees working in areas with potential exposure to hazardous chemicals
Employees trained to be able to recall fundamental health and physical hazards associated with specific chemicals

31. Employee Training Requirements
Employees must be informed of the hazards associated with performing non-routine tasks
Specific health and physical hazards
Protective measures to be utilized
Hazard control methods
Non-routine tasks, such as tank / pit cleaning, welding or other maintenance tasks

32. Subcontractor Operations
Establish and define hazard communication program requirements for contractors or vendors performing work on the premises
Provide contractors with list of hazardous materials used in affected work area(s)
Contractors must inform plant operation managers of any hazardous materials scheduled for arrival. Provide MSDS’s

33. Emergency / Non-Emergency Situations
Disclosure of chemical identity only in emergency situations (i.e. treating physician)
Disclosure in non-emergency situations only when health professional explains why info is essential to providing occupational health services

34. Haz-Com “RIGHT -TO-KNOW” LAW
It is required by OSHA that every worker be informed of the chemical hazards to which they are, or may potentially be exposed
Workers shall be knowledgeable and able to readily identify, evaluate, and protect themselves from hazardous chemical exposure