Friday, October 19, 2012

Hazard Communication Standard: Safety Data Sheets - Sections 2-4

Sections 1 through 8 contain general information about the chemical, identification, hazards, composition, safe handling practices, and emergency control measures (e.g., fire fighting). This information should be helpful to those that need to get the information quickly. Sections 9 through 11 and 16 contain other technical and scientific information, such as physical and chemical properties, stability and reactivity information, toxicological information, exposure control information, and other information including the date of preparation or last revision. The SDS must also state that no applicable information was found when the preparer does not find relevant information for any required element.
The SDS must also contain Sections 12 through 15, to be consistent with the UN Globally Harmonized System of Classification and Labeling of Chemicals (GHS), but OSHA will not enforce the content of these sections because they concern matters handled by other agencies.
A description of all 16 sections of the SDS, along with their contents, will be presented in the next several posts:
Section 2: Hazard(s) Identification
This section identifies the hazards of the chemical presented on the SDS and the appropriate warning information associated with those hazards. The required information consists of:
  • The hazard classification of the chemical (e.g., flammable liquid, category1).
  • Signal word.
  • Hazard statement(s).
  • Pictograms (the pictograms or hazard symbols may be presented as graphical reproductions of the symbols in black and white or be a description of the name of the symbol (e.g., skull and crossbones, flame).
  • Precautionary statement(s).
  • Description of any hazards not otherwise classified.
  • For a mixture that contains an ingredient(s) with unknown toxicity, a statement describing how much (percentage) of the mixture consists of ingredient(s) with unknown acute toxicity. Please note that this is a total percentage of the mixture and not tied to the individual ingredient(s).
Section 3: Composition/Information on Ingredients
This section identifies the ingredient(s) contained in the product indicated on the SDS, including impurities and stabilizing additives. This section includes information on substances, mixtures, and all chemicals where a trade secret is claimed. The required information consists of:
  • Chemical name.
  • Common name and synonyms.
  • Chemical Abstracts Service (CAS) number and other unique identifiers.
  • Impurities and stabilizing additives, which are themselves classified and which contribute to the classification of the chemical.
  • Same information required for substances.
  • The chemical name and concentration (i.e., exact percentage) of all ingredients which are classified as health hazards and are:
    • Present above their cut-off/concentration limits or
    • Present a health risk below the cut-off/concentration limits.
  • The concentration (exact percentages) of each ingredient must be specified except concentration ranges may be used in the following situations:
    • A trade secret claim is made,
    • There is batch-to-batch variation, or
    • The SDS is used for a group of substantially similar mixtures.
Chemicals where a trade secret is claimed
  • A statement that the specific chemical identity and/or exact percentage (concentration) of composition has been withheld as a trade secret is required.
Section 4: First-Aid Measures
This section describes the initial care that should be given by untrained responders to an individual who has been exposed to the chemical. The required information consists of:
  • Necessary first-aid instructions by relevant routes of exposure (inhalation, skin and eye contact, and ingestion).
  • Description of the most important symptoms or effects, and any symptoms that are acute or delayed.
  • Recommendations for immediate medical care and special treatment needed, when necessary.

To be continued....
For more information visit us online at

No comments:

Post a Comment