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|  MIL-D-16196E(SH)
Distillation plants shall not contain mercury in
3.2.3 Mercury exclusion.
Mercury-bearing instruments or equipment which might cause contamina-
any form.
tion shall not be used in the manufacture, fabrication, assembly, or testing of
any material.
In the event of any accident involving mercury contamination Of
the q aterial being furnished or suspicion of such contamination, NAVSEA or the
activity concerned shall be notified immediately.
Unless otherwise specified herein, all equip-
3.2.4 Recovered materials.
ment, material, and articles incorporated in the products covered by this
specification shall be new and may be fabricated using materials produced from
recovered materials to the maximum extent practicable without jeopardizing the
The term "recovered materials" means materials which have been
intended use.
collected or recovered from solid waste and reprocessed to become a source of
None of the above shall be
raw materials, as opposed to virgin raw materials.
interpreted to mean that the use of used or rebuilt products is allowed under
this specification unless otherwise specifically specified.
Cadmium plated parts shall not be used,
3.2.5 Cadmium exclusion.
Distilling plants shall be designed to use
3.2.6 Lubricants and compounds.
only those lubricants or compounds listed in MIL-HDBK-267, for shipboard
maintenance (see 6.9).
Equipment shall ensure safety to operating and maintenance
3.2.7 Safety.
personnel.
When the equipment is properly installed and the enclosure is
grounded, there shall be no accessible way for operating personnel to receive an
electric shock even though an internal fault between any two circuits, between
any circuit and a structural member, or between any circuit and ground may exist.
The design shall hold to a practical minimum the possibility of maintenance
personnel being exposed to electric shock while servicing, adjusting or checking
out the equipment.
External moving parts which are a potential hazard to
When their use is unavoidable, positive protection
personnel shall be avoided.
Sharp corners and projections which
in the form of a guard shall be provided.
may cause injury in a rough sea on to which clothing may catch shall be avoided.
Equipment shall be designed to revert to its least hazardous condition or mode of
Special performance capabilities
operation upon failure of a circuit or part.
(continuation of operation, automatic shut-down or any other specific function)
in the event of an electrical part failure shall be as required by the equipment
specification (see 3.3.8).
The design shall be such that should failure occur,
any resulting damage will be confined to the smallest equipment subdivision
(minimum replaceable part or subassembly) within which failure occurred.
Direct contact of dissimilar materials shall be
3.2.8 Galvanic Protection,
avoided,
If direct contact cannot be avoided, galvanic protection shall be added
in the form of sacrificial anodes.
3.3 Design.
The distillation unit shall be of the vapor compression type
(thermocompression) , wherein electrical power is the only source of power for
Heat shall be
The compressor shall be electric-motor driven.
the operation.
The units shall be furnished either
provided by electric immersion heaters.
"knocked-down" in several component parts, with all external piping and wiring to
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