Government of Canada / Gouvernement du Canada
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Oil and Gas Occupational Safety and Health Regulations

Version of section 6.9 from 2006-03-22 to 2014-05-28:

  •  (1) Where a pressure vessel is used to store anhydrous ammonia, a hydrostatic test at a pressure equal to one and one-half times the maximum allowable working pressure shall be conducted at least once every five years.

  • (2) The integrity of a pressure vessel that is a part of a motion compensator system or blowout preventer shall be verified at least once every five years by

    • (a) where practicable, an internal inspection; or

    • (b) where an internal inspection is not practicable, by a hydrostatic test or other non-destructive test method.

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