A third-party engineering company recommended to our customer that we (the designer and fabricator) provide a bolt tightening procedure per PCC-1 (Guidelines for pressure boundary bolted flange joint assembly) for a lethal service pressure vessel. I am not familiar with this spec and am interested in finding out what kind of information it contains prior to purchasing it. Hate to spend $120 if it doesn't contain good information or if it would only be used once or twice.
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