Quantcast Sample Man -Rated Hyperbaric Facility Reentry Control (REC) Procedures - mo4060117

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NRRO
INST 9080.1
January 1986
NRRO INSTRUCTION 9080.1
From:
Commanding Officer, NRRO
To:
Hyperbaric Facility Manager
Subj:
Man-Rated Hyperbaric Facility Reentry Control
Procedure
Ref:
(a) SS521-AA-MAN-010, U.S. Navy Diving and Manned
Hyperbaric Systems Safety Certification Manual
(b) Approved Hyperbaric Facility Cleaning Procedure
(c) ASME Chapter VIII, Division II
Encl:
(1) REC Procedure Sequence
(2) REC Sheet
(3) REC Log (sample page)
1.  Purpose. To  promulgate  the  procedures  to  be  utilized  for
controlling  reentry  into  recompression  chamber  systems which
require material and cleanliness control in order to accomplish
and subsequently maintain NAVFAC system certification.
2. Discussion.
a. Reference  (a)  provides  guidance  requiring  that  reentry
control
procedures  be  established  for  recompression  chamber
systems.  This  instruction  is  issued  to  supplement  specified
requirements of reference (a).
b. The term "Certified System" with regard to this instruction
is inclusive of all pressure hull fittings, including penetrators,
hatches, and viewports within each pressure hull and each breathing
gas or other piping system within the total system as defined by
the Scope of Certification.
c. Material  control  for  replacement  of  repair  parts  in  a
"Certified System " is regulated by the material schedule contained
in the "as-built" drawings and by the requirements of reference
(a).
d. Hydrostatic or gas tightness testing pressures shall be in
accordance  with  the  "as-built"  drawings  and  the  guidelines  of
reference (c).
C-3





 


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