MIL-HDBK-1908B
Hardness. The ability of materiel to withstand the materiel damaging effects of NBC
contamination and any decontaminants and procedures required to remove it.
Decontaminability. The ability to make personnel and materiel safe by absorbing, destroying, neutralizing, making harmless, or removing chemical or biological agents, or by removing radioactive material clinging to or around them.
Compatibility. The ability of a system to be effectively operated, maintained, and resupplied by persons wearing the full NBC protective ensemble in all climates for which the system is designed, and for the period specified in the operational requirements document.
Numeric uci. A descriptive term used to define a character set containing the digits 0 (ZERO)
through 9, and generally a limited number of punctuation marks.
Numeric keypad uci. A numeric keypad is a keyboard type entry device dedicated to the entry of numeric data.
Octave (or octave band) snv. A band of frequencies in which the ratio of the upper band-edge frequency to the lower band-edge frequency is equal to 2:1. The band-center frequencies are the preferred frequencies as specified in ANSI S1.6. The width of an octave band in Hz is approximately 71 percent of its mid-band frequency.
One-third octave band snv. One-third octave bands whose band-center frequencies are preferred one-third octave bands specified in ANSI S1.6. The width of a one-third octave band is approximately
23 percent of its band-center frequency.
Operational mode gen.. In ground systems, each activity/maneuver during which noise levels are effectively constant.
Operator gen. A human performer; one who operates a (specified) item; such as a test set operator, a crane operator, a tool operator, a valve operator (it is used in human factors in the conventional sense as distinguished from the operations-maintenance dichotomy).
Operator uci. See "user."
Optical character recognition (OCR) uci. The machine identification of printed characters through use of light-sensitive devices.
Optical character recognition (OCR) device uci. A device that transcribes information directly from a hard copy onto a computer memory device.
Optimal visual zone gen. Refers to a 30 degree cone symmetrical about a line from the design eye position extending outward to the center of the instrument panel, the apex of the cone being at the design eye.
Organizational maintenance acq. That maintenance authorized for the responsibility of and performed by a using organization on its assigned equipment. In aeronautical systems, organizational maintenance normally consists of pre-flight, post-flight, and periodic inspection of
aircraft; daily or minor inspection of other material, servicing, preventive maintenance, calibration of systems, and removal and replacement of components.
Output uci. See "data display."
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