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|  MIL-P-23504(Wep )
invitation for bids shall apply:
AMERICAN SOCIETY OF MECHANICAL ENGINEERS
- Supplement on Instruments and Apparatus, Part 5,
19.5:4
Chapter 4, Flow Measurement by Means of Standardized
Nozzle-s and Orifice Plates
(Copies of the ASME power test code may be obtained from the American Society
of Mechanical Engineers, 29 West 39th St., New York 18, N. Y.)
REQUIREMENTS
3.
3.1
Preproduction:
This specification makes provisions for preproduction
testing.
Components:
3.2
The vacuum pump shall consist of the following major
components:
See
Description
Requirement
(a) Power Plant
3.7
(b) Vacuum Pump
3.8
(c) Servicing Line
3.9
(d) Cabinet
3.10
(e) Base and Suspension
3.11
(f) Accessories
3.12
Selection of Specifications and Standards: Specifications and
3.3
standards for necessary commodities and services not specified herein shall
be selected in accordance with Bulletin 143.
3.4
Materials
3.4.1
Protective Treatment: When materials are used in the construction
of the vacuum pump that are subject to deterioration when exposed to climatic
and environmental conditions likely to occur during service usage, they shall
be protected against such deterioration in a manner that will in no way
prevent compliance with the performance requirements of this specification.
The use of any protective coating that will crack, chip, or scale with age or
extremes of climatic and environmental conditions shall be avoided.
3,4,2
Gasketing and Insulating Materials: Rubber or similar gasketing and
insulating materials shall be compounded to insure their resistance to the
tricresyl phosphate pump lubricant and to withstand the environmental
requirements.
3
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