APPENDIX J GLOSSARY
| Criticality | The state of a mass of fissionable material when it is sustaining a chain reaction. |
| Explosives | See High explosives. |
| Glovebox | A sealed box in which workers, while remaining outside and using gloves attached to and passing through openings in the box, can safely handle and work with radioactive materials, other hazardous materials, and nonhazardous air-sensitive compounds. |
| Hazardous waste | Any solid, semisolid, liquid, or gaseous waste that is ignitable, corrosive, toxic, or reactive as defined by RCRA and identified or listed in 40 C.F.R. part 261. |
| Health physics | The science and practice of radiation protection and management. |
| High explosives (HE) | Chemically energetic materials with the potential to react explosively; nuclear explosives are not included. |
| Packaging | In the NRC regulations governing the transportation of radioactive materials (10 C.F.R. section 71), the term "packaging" is used to mean the shipping container together with its radioactive contents. |
| Radioactive material | Any material having a specific activity greater than 0.002 microcuries per gram, as defined by 49 C.F.R. part 173.4-3(y). |
| Run card | A fire department folder that contains information on a building useful on a call, such as a response plan, building layout, location and nature of special hazards, and names of key people. |
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