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API RP 591-2003 pdf free download

API RP 591-2003 pdf free download.Process Valve Qualification Procedure.
3 Terms and Definitions 3.1 acceptance criteria: Specified limits placed on the characteristics of an item, process, or service defined in codes, standards, or other requirement documents. 3.2 audit: A planned and documented activity performed to determine by investigation, examination, or evaluation of objective evidence the adequacy of and compliance with estab- lished procedures, instructions, drawings, and other applicable documents and the effectiveness of implementation. 3.3 characteristic: Any property or attribute of an item, process, or service that is distinct, describable, and measurable. 3.4 corrective action: A measure taken to rectify non- conformance and, where necessary, to preclude repetition of such conditions. 3.5 manufacturer: The entity whose name or trade mark appears on the valve. 3.6 nonconformance: Any item or action that does not meet the requirements of the standards listed in Section 2, or the manufacturer’s specifications. 3.7 purchaser: A person, group, company, agency or cor- poration responsible for valve acceptance. 3.8 qualified procedure: An approved procedure that has been demonstrated to meet the specified requirements for its intended purpose. 3.9 quality assurance: Refers to the planned and sys- tematic actions necessary to provide confidence that a valve is manufactured in accordance with the requirements of the ref- erenced API standard and manufacturer’s specifications. 3.10 supplier: An individual or organization that fur- nishes items in accordance with a procurement document. It is a term used to indicate any of the following: vendor, seller, contractor, subcontractor, or fabricator.
4 Purchaser Responsibilities 4.1 It is the responsibility of the purchaser to verify the source of supply to assure that purchased valves are newly manufactured in accordance with the applicable standards. 4.2 It is the responsibility of the purchaser to determine that the valve manufacturer can supply valves that meet the refer- enced API valve standards, and that the manufacturer contin- ues to supply valves of appropriate quality. The purchaser shall also verify that the manufacturer has a working quality assurance program. The essential elements of a quality assur- ance program are described in Section 5. 4.3 As part of the review and evaluation, the purchaser or his representative may survey the valve manufacturer’s shops, and, as the purchaser deems appropriate, may survey the facilities of primary suppliers to the valve manufacturer, such as foundries and forge shops. The valve manufacturer shall provide access, upon request, at times that are mutually agreed. At the conclusion of a manufacturing facility survey, the purchaser or his representative shall conduct an exit inter- view with the facility managers for the purpose of communi- cating observed nonconforming activities, if any. 5 Manufacturer Quality Assurance Program 5.1 GENERAL The manufacturer shall establish and maintain a quality assurance group that shall be responsible for establishing and maintaining a quality assurance program. The quality assurance program shall follow the principles of an appropriate standard from the ISO 9000 series. The quality assurance group shall be independent from the manufacturing department, and shall have the authority, access to work areas, and organizational freedom to identify quality problems; initiate solutions and verify the implemen- tation of the solutions.
5.2.2 Design Input Design basis, performance requirements, and codes and standards, shall be identified and documented. 5.2.3 Document Control The preparation, distribution, and modification of docu- ments, such as drawings, specifications, and procedures that specify quality requirements or prescribe activities affecting quality shall be controlled to assure that the correct versions of the documents are employed. 5.3 CONTROL OF PURCHASED ITEMS AND SERVICES 5.3.1 General Purchased items and services shall be controlled by the manufacturer to assure conformance with the specified requirements. This control shall provide for the following as appropriate: a. Evaluation and selection of the source. b. Evaluation of objective evidence of quality, furnished by the supplier. c. Inspection, audit, and examination of items and services upon delivery or completion. d. Confirmation of a quality assurance program consistent with the requirement of this recommended practice. 5.3.2 Receiving Inspection The manufacturer shall use receiving inspection to verify the conformance by a supplier to the specified requirements. The manufacturer shall establish acceptance criteria for the items inspected. If the procurement documents require the supplier to furnish documentation, the receiving inspection shall be coordinated with a review of the supplier’s documentation. 5.3.3 Control of Supplier Nonconformances The manufacturer shall establish and document methods for the disposition of items that do not meet the requirements of the procurement documents. 5.3.4 Right of Access At each level of procurement, the manufacturer’s procure- ment documents shall require the supplier to provide access to his plant facilities and records for inspection or audit by the manufacturer, his designated representative, and other parties authorized by the manufacturer.

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