Specifications

MIL-STD- 1472E
5,13 Hazards and safety.
5.13.1 General. Design shall reflect the safety related human engineering criteria below as well
as in other sections of this standani
5.13.2 Safety labels and Placards.
5.13.2.1 Warning placards. Conspicuous placards shall be mounted adjacent to any equipment
which presents a hazard to personnel (e.g., from high voltage, hea~ toxic vapors, explosion,
radiation). Warning placards shall be located to provide an advanced alert of the potential health
hazards while not placing the reader at risk to exposure.
5.13.2.2 Center-of-~raviW and weight. Where applicable, the center of gravity and the weight
of equipment shall be distinctly marked.
5.13.2.3 Weight capacity.
The weight capacity shall be indicated on stands, hoists, lifts, jacks,
and similar weight-bearing equipment, so as to prevent overloading.
5.13.2.4 Identification of rmtdve items. Areas of operation or maintenance where special
protective clothing, tools, or equipment are necessiuy (e.g., insulated shoes, gloves, suits) shall be
specifically identified.
5.13.2.5 “NO-STEP” markhms. “NO-STEP” markings shall be provided when necessary to
prevent injury to personnel or darnage to equipment.
5.13.2.6 Electrical labels. All receptacles shall be marked with their voltage, phase, and
frequency characteristics, as appropriate. For other electrical labeling and warning requirements, see
MIL-HDBK454.
5.13.2.7 Hand ~rasn areas. Hand grasp areas shall be conspicuously and unambiguously
identified on the quipment.
5.13.3 Piw, hose and tube Iine identification. Pipe, hose, and tube lines for liquids, gas,
steam, and etc., shall be ckariy and unambiguous] y labeled or d as to amt=ts, presstu% Q
cold, or other specific hazardous properties.
5.13.4 General worksrmce hazards.
5.13.4.1 Alerting device. A hazard aierting &vice shall be provided to warn personnel of
impending danger or existing hazards (e.g., fire, the presence of combustible or asphyxiating gas, and
radiation.).
5,13.4.2 Emergenq doors and exits. Emergency doors and exits shaIl be readily accessible,
unobstructed, simple to operate, simple to locate in the dark, quick opening in three seconds or less,
and require 44- 133 N (10 -30 lb) of operating force to open. They shall not themselves, or in
operation, constitute a safety hazard. They shall permit one person egress m 5 seconds or less.
5 17.4,3 Stairs. Stairs, including incline, step risers. and treads, shall conform with standard
safe design prac”[ice. Skid-proof flooring, stair, and step treads shall be prowded. Where condmons
w~ ~6LLL+wid pwtion, ~udaccs shall bc trc~tcd v,pitha nonslip coating