Wash. Admin. Code § 296-304-11001 - Portable air receivers and other unfired pressure vessels
(1) Portable,
unfired pressure vessels, built after the effective date of this regulation,
must be marked and reported indicating that they have been designed and
constructed to meet the standards of the American Society of Mechanical
Engineers Boiler and Pressure Vessel Code, Section VIII, Rules for Construction
of Unfired Pressure Vessels, 1963. They must be subjected to a hydrostatic
pressure test of one and one-half times the working pressure of the
vessels.
(2) Portable, unfired
pressure vessels, not built to the code requirements of (1) of this section,
and built prior to the effective date of this regulation, must be examined
quarterly by a competent person , and approved by the state boiler inspecting
division. They must be subjected yearly to a hydrostatic pressure test of one
and one-half times the working pressure of the vessels.
(3) The relief valves on the portable,
unfired pressure vessels in (1) and (2) of this section must be set to the safe
working pressure of the vessels, or set to the lowest safe working pressure of
the systems, whichever is lower.
(4) A record of such examinations and tests
made in compliance with the requirements of (1) and (2) of this section must be
maintained.
Notes
Order 74-25, § 296-304-11001, filed 5/7/74.
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