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|  MIL-P-18682D(SH)
ASTM (Continued)
B 446 - Nickel-Chromium-Molybdenum-Columbium Alloy
(UNS N06625) Rod and Bar.
B 463 - Chromium-Nickel-Iron-Molybdenum-Copper-
Columbium Stabilized Alloy (UNS N08020) Plate,
Steel, and Strip.
B 473 - Chromium-Nickel-Iron-Molybdenum-Copper-
Columbium Stabilized Alloy (UNS N08020) Bar
and Wire.
(Application for copies should be addressed to ASTM, 1916 Race Street,
Philadelphia, PA 19103.)
HYDRAULIC INSTITUTE
Test Code of Standards - Centrifugal Pump Section.
(Application for copies should be addressed to Hydraulic Institute,
712 Lakewood Center N., 14600 Detroit Avenue, Cleveland) OH 44107.)
(Industry association specifications and standards are generally available
for reference from libraries. They are also distributed among technical groups
and using Federal agencies.)
2.3 Order of precedence. In the event of a conflict between the text of
this specification and the references cited herein, the text of this specifi-
cation shall take precedence.
3.
REQUIREMENTS
3.1 First article. A sample shall be subjected to first article inspec-
tion (see 4.3 and 6.3). On board repair parts and stocked spare parts ordered
for pumps built to this specification shall be subject to the same tests as the
original equipment.
3.2 General design. The design and construction of pumps shall comply with
the space and weight requirements as specified (see 6.2.1). The pump unit shall
perform under the list, pitch, roll and trim conditions as specified (see 6.2.1).
Pumps shall operate continuously at any point over the entire flow range and the
design conditions as specified (see 6.2.1).
3.2.1 Reliability. The requirements of this specification are imposed
exclusively to obtain equipment of utmost reliability for the service intended.
The assurance of maximum reliability shall be the paramount controlling principle
in the design, fabrication, assembly, and testing of this equipment. Users of
and contractors to this specification are urged to communicate to the Naval Sea
Systems Command (NAVSEA) any findings related to the requirements or lack of
requirements of this specification whereby improvement of equipment reliability
can be achieved. On board repair parts and stocked spare parts ordered for
pumps built to this specification shall be subject to the same tests as the
original equipment.
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