1. Bi-Weekly Safety Meeting October 1, 2015
HAZARD COMMUNICATION
Your Right To Know
Bi-Weekly Safety Meeting
October 1, 2015

2. OSHA Standard
The Hazard Communication Standard (HCS) is an OSHA regulation intended to prevent adverse health effects of hazardous materials in the workplace.
It requires chemical manufacturers, suppliers, and importers to assess the hazards of the chemicals they produce or import, and to inform employers, customers, and workers of these hazards. 
In 2003, the United Nations (UN) adopted the Globally Harmonized System of Classification and Labeling of Chemicals (GHS). The GHS includes criteria for the classification of health, physical and environmental hazards, as well as specifying what information should be included on labels of hazardous chemicals as well as safety data sheets.
In 2012 OSHA announced that the HCS had been revised to align with the GHS.

3. OSHA Standard
HCS specifies that information on chemical hazards be provided through the following:
access to safety data sheets (SDS)
properly labeled chemical containers
appropriate training on chemical hazards and safe work procedures

4. Safety Data Sheets
Safety Data Sheets (SDS) are the backbone of the Hazardous Communication System.
They provide comprehensive and specific information used not only by workplaces that manufacture, use, transport or store hazardous chemicals, but also by emergency responders, poison control centers, and transporters of dangerous goods.

5. Safety Data Sheets
The information contained in the SDS is presented in a consistent user-friendly, 16-section format:
Sections 1 through 8
contain general information about the chemical, identification, hazards, composition, safe handling practices, and emergency control measures (e.g., fire fighting).
Sections 9 through 11, and 16
contain other technical and scientific information, such as physical and chemical properties, stability and reactivity information, toxicological information, and exposure control information
Sections 12 through 15
to be consistent with the UN GHS system, but OSHA will not enforce the content of these sections because they concern matters handled by other agencies.

6. Pictograms
Nine hazard pictograms that correspond with the health and physical hazards, and are intended to help workers determine chemical hazards at a glance.

7. Sample SDS

8. Hazard Classification
Chemicals are classified according to two types of hazards:
HEALTH
toxic effects on the body causing damage to skin, eyes, or lungs through corrosion
encouraging the development of cancer or other serious health conditions
PHYSICAL
fire, explosion, or other violent reaction

9. Health Hazards Acute Toxicity Skin Corrosion/Irritation
Serious Eye Damage/Eye Irritation
Respiratory or Skin Sensitization
Germ Cell Mutagenicity
Carcinogenicity
Reproductive Toxicity
Target Organ Systemic Toxicity – Single and Repeated Dose
Aspiration Toxicity

10. Health Effects can be Local or Systemic
Health Hazards
Health Effects can be Local or Systemic
Local
The site on the body at which a toxic material makes contact with a harmful effect.
Systemic
Occurs when a toxic material is absorbed into the body and carried into the blood stream to produce a harmful effect on organs and body systems.

11. Health Effects can be Acute or Chronic
Health Hazards
Health Effects can be Acute or Chronic
Acute
Effects that are severe and sudden in onset. They appear immediately after an exposure of short duration.
Chronic
Effects that develop slowly and do not appear for months or years after long-term exposure.

12. Health Hazards Routes of Entry Lungs (inhalation) Skin (absorption)
Mouth (ingestion)
Eyes

13. Physical Hazards Explosives
Flammability – gases, aerosols, liquids, solids
Oxidizers – liquid, solid, gases
Self-Reactive
Pyrophoric – liquids, solids
Self-Heating
Organic Peroxides
Corrosive to Metal
Gases Under Pressure
Water-Activated Flammable Gases

14. Labels
Labels are attached to containers to provide workers with “at a glance” information about chemical hazards. 
They are limited in the amount of information they present and are designed to provide a brief summary of the more detailed information available on the SDS.

15. Labels Should Contain:
Product Identifier – Should match the product identifier on the Safety Data Sheet
Signal Word – Either use “Danger” (severe) or “Warning” (less severe)
Hazard Statement – A phrase assigned to a hazard class that describes the nature of the product’s hazards
Precautionary Statements – Describes recommended measures to minimize or prevent adverse effects resulting from exposure
Supplier Identification – Name, address, and telephone number of the manufacturer or supplier.
Pictograms – Graphical symbols intended to convey specific hazard information visually

17. TOXICOLOGY
concerned with the study of the adverse effects of chemicals on living organisms

18. Information & Definitions on Determining Exposure
Permissible Exposure Limit (PEL)
The PEL is the maximum concentration of an airborne contaminant to which an unprotected worker may be exposed during the course of workplace activities.
PEL Ceiling Value
The concentration of a substance that should not be exceeded at any time.
Concentration – Parts Per Million (PPM)
The concentration of a substance is a measure of the "strength" of that substance and can be measured different ways:
% = Parts per hundred
PPM = Parts per million   
PPB = Parts per billion

19. Information & Definitions on Determining Exposure
Time Weighted Average (TWA)
PELs are based on a time weighted average (TWA) exposure.
A TWA is the average exposure over a specified period of time, usually a nominal eight hours.
This means that, for limited periods, a worker may be exposed to concentrations higher than the PEL, so long as the average concentration over eight hours remains lower.

20. Test Your Knowledge Benzene Other reference: Signal word:
Hazards Pictograms:
Phenyl hydride or
Sodium chloride
Warning or
Danger
and/or
and/or

21. Test Your Knowledge Benzene Other reference: Signal word:
Hazards Pictograms:
Phenyl hydride
Danger

22. Test Your Knowledge Nitrogen Other reference: Signal word:
Hazards Pictograms:
GAN or
Butoxyethanol
Warning or
Danger
and/or
and/or

23. Test Your Knowledge Nitrogen Other reference: Signal word: GAN
Hazards Pictograms:
GAN
Warning

24. Test Your Knowledge Ammonia Other reference: Signal word:
Hazards Pictograms:
L-NAME or
Anhydrous
Warning or
Danger
and/or
and/or

25. Test Your Knowledge Ammonia Other reference: Signal word: Anhydrous
Hazards Pictograms:
Anhydrous
Danger

26. Your Right To Know…
Our clients provide SDSs for the contractors and employees who work on their sites.
It is every employee’s responsibility to know the location of the SDSs for the sites they work at.
Site orientation, the project JSA, and personal SMART cards are tools to help us to remember to remain up to date on the location of this vital information.

27. Resources
Policies are located on the Google Safety Resource Center site.
MSP-209, Hazard Communication
A , H2S
B, Asbestos
C, Benzene
D, Lead