A-20.01, r. 1 - Regulation respecting pressure vessels

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16. Each certificate defined in the Act is issued for a maximum working pressure and temperature. These maximums are determined by taking into account the approved and registered drawings and specifications for the construction of the pressure vessel, its installation, its condition, the inspections and tests it has undergone and the accessories attached thereto.
O.C. 2519-82, s. 16.