This is the second edition of CAN/CSA-ISO 19901-5, Petroleum and natural gas industries — Specific requirements for offshore structures — Part 5: Weight control during engineering and construction, which is an adoption without modification of the identically titled ISO (International Organization for Standardization) Standard 19901-5 (second edition, 2016-02-15). It supersedes the previous edition published in 2005 as CAN/CSA-ISO 19901-5 (adopted ISO 19901-5:2003). At the time of publication, ISO 19901-5:2016 is available from ISO in English only. CSA will publish the French version when it becomes available from ISO.
For brevity, this Standard will be referred to as CAN/CSA-ISO 19901-5 throughout.
Standards development within the Canadian Offshore Structures sector is harmonized with international standards development.
This Standard was reviewed for Canadian adoption by the harmonized Canadian Advisory Committee and CSA Technical Committee to ISO TC 67/SC 7, Offshore Structures. This Standard has been formally approved by the CSA Technical Committee on Design, Construction, and Installation of Offshore Structures, under the jurisdiction of the CSA Strategic Steering Committee on Offshore Structures. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.
This part of ISO 19901 specifies requirements for controlling the weight and centre of gravity (CoG) by means of mass management during the engineering and construction of structures for the offshore environment. The provisions are applicable to offshore projects that include structures of all types (fixed and floating) and materials. These structures can be complete new installations or the modifications to existing installations. Maintaining the weight control of existing installations is not part of the main body of this part of ISO 19901, but some guidance on this is included in the Annex G.
This part of ISO 19901:
— specifies quality requirements for reporting of weights and centres of gravity;
— specifies requirements for weight reporting;
— provides a basis for overall project weight reports or management reports for all weight control classes;
— specifies requirements for weight and load budgets;
— specifies the methods and requirements for the weighing and the determination of weight and CoG of major assemblies;
— specifies requirements for weight information from suppliers, including weighing of equipment and bulk materials for offshore installations.
It can be used:
— as a basis for planning, evaluating and presenting the client’s, contractor’s or fabricator’s weight management and reporting system;
— as a means of refining the structural analysis or model;
— as a contract reference between client, contractor and suppliers;
— as a basis for costing, scheduling or determining suitable fabrication method(s) or location(s).