This specification establishes the ruggedness requirements for equipment used in Hazardous Material (HAZMAT) instrumentation, including devices used to detect or monitor for hazardous material. It defines for design and test purposes the environment in which HAZMAT equipment will likely be exposed during storage, transport, and field use. Passive personal protective equipment such as respirators and protective suits are not covered. The specification addresses materials and manufacture, physical and mechanical properties, performance and environmental requirements, dimensions, mass and permissible variations, workmanship, and finish and appearance. Definitions of terms specific to this standard are provided, including body-worn, hand-carried, mobile, portable, and transportable.