3.1.3 alteration A physical change in any component that has design implications affecting the pressure containing capability or flexibility of a piping system beyond the scope of its original design. NOTE Carbon steels are not considered alloys, for purposes of this Code. Alloys may be ferrous or non-ferrous based. 3.1.2 alloy material Any metallic material (including welding filler materials) that contains alloying elements, such as chromium, nickel, or molybdenum, which are intentionally added to enhance mechanical or physical properties and/or corrosion resistance. air-gapped) from all energy sources and/or other piping/equipment. 3.1 Terms and Definitions 3.1.1 abandoned-in-place Piping system, circuit or contiguous sections thereof meeting all of the following: has been decommissioned with no intention for future use has been completely de-inventoried/purged of hydrocarbon/chemicals and is physically disconnected (e.g. API 570 pdf free download.Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems.ģ Terms, Definitions, Acronyms, and Abbreviations For the purposes of this document, the following terms, definitions, acronyms, and abbreviations apply.
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