Utah Admin. Code R315-265-1054 - Air Emission Standards for Equipment Leaks - Standards: Pressure Relief Devices in Gas or Vapor Service
(a) Except
during pressure releases, each pressure relief device in gas or vapor service
shall be operated with no detectable emissions, as indicated by an instrument
reading of less than 500 ppm above background, as measured by the method
specified in Subsection R315-265-1063(c).
(b)
(1)
After each pressure release, the pressure relief device shall be returned to a
condition of no detectable emissions, as indicated by an instrument reading of
less than 500 ppm above background, as soon as practicable, but no later than
five calendar days after each pressure release, except as provided in Section
R315-265-1059.
(2) No later than
five calendar days after the pressure release, the pressure relief device shall
be monitored to confirm the condition of no detectable emissions, as indicated
by an instrument reading of less than 500 ppm above background, as measured by
the method specified in Subsection R315-265-1063(c).
(c) Any pressure relief device that is
equipped with a closed-vent system capable of capturing and transporting
leakage from the pressure relief device to a control device as described in
Section R315-265-1060 is exempt from the requirements of Subsections
R315-265-1054(a) and R315-265-1054(b).
Notes
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