MIL-HDBK-1191
1.9.4 Modifications to Existing Systems. Modifications to existing
equipment and systems, including temporary connections, changes to system
performance, or measures necessary to sustain service, shall be shown and
described in detail in project design documents. Designers shall
evaluate the impact on existing systems of "tap-ins" which increase
overall system demand. The locations of new connections shall clearly be
shown and/or described. The designer shall determine, and document for
the design agent's information, any project work which will necessitate a
reduction or interruption of any service to an existing, occupied area
1.9.5 Protection of Patients From Construction Contaminants. For
additions or alterations to existing hospitals, design projects shall
include instructions (including specifications, drawings, drawing notes,
and details, as applicable) defining measures required of the
construction-contractors to minimize contamination of the existing
medical facility. Measures to reduce the potential of contamination and
nosocomial infections include but are not limited to negative isolation
of construction areas, construction of effective dust barriers,
protection of air distribution systems serving occupied areas,
maintenance of adequate handwashing stations, and disinfection of any
reused ductwork. Designers should consult with the facility's infection
control representative and facility management during the design process
to assure thorough coordination of design features that may affect
patient welfare.
1.9.6 Construction Phasing Plan. Designers shall develop a phasing
plan, consisting of detailed written instructions as well as any
graphic/drawing aids necessary to clearly communicate the content,
location, and sequence of work activities. The plan shall identify the
scope, duration, and timing sequence of each individually identifiable
work item, with all required lead-in, preparatory, and commissioning
activities.
1.9.7 Incremental Systems Testing/Placement in Service. Designers shall
describe the procedures required to perform pre-acceptance equipment
testing, functional system testing, and certification of satisfactory
operation for systems constructed in an incremental or segmental fashion.
An example of such a case might be a medical gas system upgrade to an
existing facility, constructed and placed into operation incrementally on
a department-by-department or floor-by-floor basis. Similar procedures
shall be provided for existing systems, which are incrementally taken out
of service.
1.9.8
Seismic Upgrades.
1.9.8.1 Policy. The Department of Defense policy is to provide a
framework to make the most effective use of medical Military Construction
(MILCON) funds and to accommodate the concerns and legal requirements
associated with the seismic risks faced by military hospitals. The
Earthquake Hazards Reduction Act (P.L. 95-124), (reference 1k) and the
National Earthquake Hazards Reduction Program, while indicating the need
to ensure that critical facilities such as hospitals are serviceable
following an earthquake, also recognizes that the measures necessary to
implement seismic requirements are extremely expensive.
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