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All of the following purposes of having a MSDS available apply EXCEPT:

  1. Knowing how to store chemicals

  2. Knowing what supplies are in stock

  3. Having information on hazardous materials

  4. Understanding how to handle chemical exposures

The correct answer is: Knowing how to store chemicals

A MSDS stands for Material Safety Data Sheet. Its purpose is to provide workers and emergency personnel with information on hazardous materials in the workplace. This information includes physical and chemical properties, health hazards, safe handling procedures, emergency procedures, and disposal methods. Option A, knowing how to store chemicals, is incorrect because storing chemicals safely is an important part of understanding and handling hazardous materials. Options B, knowing what supplies are in stock, and C, having information on hazardous materials, are both correct purposes of having a MSDS available. Option D, understanding how to handle chemical exposures, is also a correct purpose, as MSDS provides information on the health hazards of exposure to specific chemicals and how to handle and prevent exposure.