CSA規格 Z662, 2023: Oil and Gas Pipeline Systems
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Description
This is the ninth edition of CSA Z662, Oil and gas pipeline systems. It supersedes the previous editions published in 2019, 2015, 2011, 2007, 2003, 1999, 1996, and 1994.
The following are the significant changes to this edition:
a) Clause 3and Annex Ahave been revised to provide a common framework for audits;
b) Clauses 4and 7have been revised to address concerns with gross girth weld strength under-matching and heat affected zone softening, when welding high strength line pipe for a stress based design pipeline;
c) Clause 17, on composite reinforced steel pipelines, has been deleted. A new Clause 17, on hydrogen and hydrogen blend pipeline systems, has been added.
d) For hydrogen and renewable gas: