This easy-to-ready field index will provide any technical person with the information and tools that they need to respond to many types of hazardous materials incidents. This index should be used to avoid potential deleterious incidents by quickly identifying the problems associated with mixing chemical and common substances. The book begins with an introduction, discussion, identification and definition of symbols, applications and examples of how to use the text. The chemicals are listed alphabetically with Reactivity Group Numbers (RGN). These numbers are identified in a table in both rows and columns in a chart. Chemicals, which react the same under a set of conditions, are listed together under the same RGN group of reactants in the back of the text. A list of alternative names for specific chemicals is provided in the index. Each example of chart interpretation is detailed in a step-by-step procedure. The procedure or interpretation of the results of mixing two or more chemicals is found in a quick and easy format.