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Page Title:
Table 4.9. What-If Analysis of Dock 8 HF Supply System |
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|  DOE-HDBK-1100-2004
Table 4.9. What-If Analysis of Dock 8 HF Supply System
LINE/VESSEL: Dock 8 HF Supply System
December 22, 1992
__ of __
DATE:
PAGE:
SCEN-
COMMENTS
WHAT IF
CONSEQUENCES
SAFETY LEVELS
ARIO
... the HF cylinder corrodes
Cylinder leak, HF release to atmosphere,
None.
1
Check with supplier regarding
through?
possible worker exposure via inhalation and
cylinder inspection practices.
skin, possibly fatal.
None.
2a
... the dock and this equipment
HF release to atmosphere via vent
is involved in a fire?
OR
Relief valves, rupture discs.
2b
cylinder rupture, with possible worker
exposure via inhalation and skin, possibly
fatal.
3a
None.
... the hot water jacket on the
Heat of solution, HF release via vent,
HF corrodes through
possible worker exposure via inhalation and
skin, possibly fatal.
3b
Possible large pipe and pipe component
failures due to corrosion.
Relief valve, rupture disc.
Possible vaporizer rupture with further
release and blast effects, worker injured by
blast or scalded.
None.
4a
Prevention is procedures for
Heat of solution, HF release via vent,
... moisture is introduced into
monitoring N2 supply.
possible worker exposure via inhalation and
the HF cylinder via the N2
supply?
skin, possibly fatal.
4b
HF solution attacks carbon steel, corrosion,
leak or rupture, possible worker exposure
via inhalation and skin, possibly fatal.
38
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