S9074-AR-GIB-010/278
gas (such as propane, butane, or butadiene) and vapors of any other petroleum products are not classified as lethal substances. 3.3.1.11 Organization inspector. The organization inspector shall be the inspector of a contractor. Naval shipyard, or Government agency who has been authorized by the organization to inspect and accept or reject materials and workmanship and to witness tests and validate test data. In process, visual inspectors can be production personnel. 3.3.1.12 Pressure containing. Pressure containing shall refer to that area of a component or weld which prevents contained liquid or gas from escaping. 3.3.1.13 Procedure qualification. A welding procedure qualification is an action by which test assemblies are prepared in accordance with a proposed procedure and evaluated either by destructive or nondestructive tests or both.
3.3.1.14 Qualified. The term "qualified" means that the item under consideration has been approved as required by this document.
3.3.1.15 Seal welds. Seal welds are welds provided for a fluid containment function only, as in a closure where strength is provided by a separate device. This definition does not apply to boiler, economizer, and superheater tube-to-header "seal" welds. 3.3.1.16 Tube-to-header "seal" welds. Tube-to-header "seal" welds are welds between various types of boiler tubes and their respective headers (or drums), such as economizer headers, superheater headers, and so forth. These welds are located on the interior of the header (or drum). Integrity of the tube-to-header connection is provided by a combination of welding and rolling the tube. Tube-to- header "seal" welds shall be performed in accordance with NAVSEA 0951-LP-031-8010 in addition to the requirements specified herein. 3.3.1.17 Welding-deposited buttering. Welding-deposited buttering is weld metal deposited on base metal prior to completing the weld to permit the final portion of a dissimilar metal weld to be completed as a similar metal weld. 3.3.1.18 Weld-deposited overlay cladding. Weld-deposited overlay cladding is weld metal which is deposited for the purpose of corrosion protection only. 3.3.1.19 Weld-deposited hard surfacing. Weld deposited hard surfacing is weld metal which is deposited for the purpose of providing wear resistance. 3.3.1.20 Welded fabrication or weldment. Welded fabrication or weldment is any assembly where component parts are joined by welding. 3.3.1.21 Welding procedure. Welding procedure is written instructions designed for use in production welding and repair welding, delineating all the essential elements and guidance to produce acceptable welds.
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