The work process of making calculations to establish pressures and temperatures appropriate for a piping system, including design pressure/temperature, MAWP, structural minimums, required thicknesses, etc.
Source: API 570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. Global Standards
a person who is a member of a ship’s crew other than the master or an officer.
Source: Atlantic Canada Offshore Petroleum Industry, Standard Practice for the Training and Qualifications of Personnel, 2013, Canadian Association of Petroleum Producers, Global Standards