December 2010 Vol. 237 No. 12

Features

Canadian Standard Revised To Incorporate Higher Performance Plastic Pipe

Revisions have been approved to the Canadian standard dealing with the use of plastic pipe in oil and gas pipeline systems. The standard is CSA Z662-11 “Oil and Gas Pipeline Systems.” The revisions to be published next year include: Added rapid crack propagation (RCP) required value of a full-scale critical pressure greater than 1.5 times the maximum operating pressure for polyethylene (PE) materials. Added the minimum required strength (MRS) design equation so that PE 100 pipe could be installed and pressure rated using the ISO pressure rating method. Specified stringent SCG requirement of 2,000 hours PENT and S4 RCP critical pressure of 10 bar for bimodal PE 10

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