Patent ID: 8600959

Claim:
A machine readable medium having stored thereon a set of instructions, which when executed by a computer, perform a method comprising: displaying selectable lists of observable properties associated with hazardous materials and symptoms of exposure to at least some of the hazardous materials, the observable properties stored in records, the selectable lists including normalized descriptors for hazardous material and symptom identification and based on plain language descriptions of the hazardous materials and the symptoms by replacing related words and phrases of the plain language descriptions with normalized descriptors, wherein the selectable lists of the observable properties are organized into categories including at least one of appearance, cardiovascular, eyes, respiratory, skin, behavior, digestive system, and temperature; receiving selection of at least one of the normalized descriptors from the selectable lists; and providing an identification of at least one of a hazardous material and a symptom associated with at least one record of the records based on determination of a match between the selection and the at least one record.