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Guidance on Section 10 of the GHS SDS

June 11th, 2013

In this post, we continue to provide guidance on the GHS SDS, as per the official publication of the GHS by the UN. The guidance is based on the 4th revision of the GHS.

We turn our attention to section 10, “Stability and reactivity”. Here is a summary of the content:

  • Reactivity. The reactive hazards of the substance or mixture. Specific test data for the substance or mixture must be provided, where available. But the information may also be based on general data for the class or family of chemical if such data represents the anticipated hazard of the substance or mixture. If data on a mixture is not available, ingredient data should be provided, according to the guidance.
  • Chemical stability. Indicate if the substance or mixture is stable or unstable under normal ambient and anticipated storage and handling conditions of temperature and pressure. Describe any stabilizers that are, or may be, used to maintain the product. Moreover, the safety significance of any change in the physical appearance of the product must be indicated.
  • Possibility of hazardous reactions. If relevant, it must be stated whether the substance or mixture will react or polymerize, releasing excess pressure or heat, or creating other hazardous conditions. The conditions under which the hazardous reactions may occur must be provided.
  • Conditions to avoid. Conditions, such as heat, pressure, shock, static discharge, vibration or other physical stresses, that may result in a hazardous situation.
  • Incompatible materials. Classes of chemicals or specific substances with which the substance or mixture could react to create a hazardous situation.
  • Hazardous decomposition products. Known and reasonably anticipated hazardous decomposition products produced as a result of use, storage and heating.

Finally, it is worth noting that the guidance from national/regional authorities, such as OSHA in the U.S. and ECHA in the EU, could have additions or differences compared to the guidance in the generic purple book GHS. It is important to always give precedence to the national/regional authorities if their guidance differs from the UN GHS guidance.

In the next post, we will cover section 11 of the GHS SDS. Section 11 includes toxicological information.

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