the SERC and LEPC if it stores one or more of specifically listed Extremely Hazardous Substances (EHSs, some- times called the "SARA Chemicals"). This notice is required when the chemical(s) are processed, used or stored in To find out whether you are exposed to hazardous materials is, therefore, a matter of research. Federal laws require disclosure and identification of hazardous materials in specific circumstances. For example, hazardous materials shipments crossing State lines and many hazardous materials used in the workplace must be labeled.
others. Hazardous materials may include, but are not limited to, asbestos or mercury containing materials, compressed gases used for welding and cutting, dielectric fluids, boiler bottom ash, and oils. Process fluids can be either hazardous or non-hazardous, and can include oily water, spent
A variety of materials are used in different products. Natural materials include stone and biological materials. Certain types of rock are extremely strong and hard, and are therefore used as building stone.