MIL-DTL-52849E
arrangement of equipment and components, and feature characteristics that ensure safety and
ease of use. The equipment shall represent the simplest design consistent with functional
requirements.
3.7.1 Accessibility. Compartment access and grasp areas shall reflect compatibility with
the Clothing and Personal Equipment (C/PE) of personnel using and maintaining equipment,
under the environmental conditions specified herein. Grasp areas shall also be located to provide
clearance from obstructions, and shall not interfere with operation or maintenance of the unit.
The proper orientation of ancillary items and components for stowage on the unit shall be made
obvious, either through compartment or fixture design or by means of appropriate labels (see
4.5.2).
3.7.2 Safety. The construction shall incorporate methods to protect personnel from
shock hazards, to include consideration of ground currents and voltage limits (possible arcing)
according to NFPA 70. Adequate safe-guards shall be incorporated into the kit and its
components so that personnel shall not be exposed to concentrations of toxic or corrosive
substances. Equipment that, in normal operation, exposes personnel to surface temperatures
greater than 130 ± 2 °F (54 ± 1 °C) for prolonged contact or handling, or 140 ± 2 °F (60 ± 1 °C)
for momentary contact, shall be appropriately guarded. Except where functionally required,
exposed surfaces shall be free from burrs, sharp edges and corners, or other features that present
a personnel safety hazard; or shall be shielded against contact. Danger or caution signs, labels,
and markings shall be used to warn of potential or specific hazards according to NEMA Z535.2.
3.7.3 Labeling. To avoid hazardous or unsafe operation, labels, legends, instruction
placards, signs, markings, or combinations of all shall be provided for personnel to identify,
interpret and follow procedures. Instructions for test methods shall be clearly visible, and shall
not be damaged, or made illegible, by frequent use, extended storage, or cited environmental
conditions. Label characteristics shall be consistent with the accuracy of identification required,
the time available for recognition, and the appropriate response, the distance at which the labels
must be read, and in accordance with the requirements of NEMA Z535.2. Labels shall be
permanent and have a high contrast, foreground to background.
3.8 Markings. The kit shall be identified in accordance with MIL-STD-130 to include
item nomenclature, NSN (National Stock Number), manufacturer's part number, CAGE
(Commercial and Government Entity), contract number and serial number.
3.9 Materials. The manufacturer shall select materials capable of meeting all the
operational and environmental requirements specified herein. Kit components shall not
incorporate readily breakable material except where no alternative is available such as glass for
optical lenses. Test kit components shall be resistant to fuel and fuel esters, ultraviolet radiation,
and ozone deterioration.
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