Final answer:
The necessity of a stainless steel floor liner for Division 1.1 or 1.2 materials is determined by safety regulations pertaining to explosive materials. The material choice for liners, such as stainless steel, is based on its non-reactive properties and robustness, but definitive requirements come from regulatory bodies like OSHA or DOT.
Step-by-step explanation:
The requirement for a floor liner for Division 1.1 or 1.2 materials depends on specific regulations and safety guidelines in place for the storage and transport of explosive materials. Division 1.1 materials are mass explosion hazards, and Division 1.2 materials have a projection hazard but not a mass explosion hazard. The use of stainless steel as a liner can be due to its non-reactive nature and durability. However, whether it is required is based on the regulatory context and the specific safety measures deemed necessary for the type of material being handled.
Standards set forth by safety regulatory bodies like the Occupational Safety and Health Administration (OSHA), the Department of Transportation (DOT), and other local and international regulations would provide definitive guidance on this matter. It is important for any entity handling these materials to adhere to the prescribed safety protocols to ensure the safe transportation and handling of hazardous materials.