_RP_970-2017.pdf

Corrosion Control DocumentsAPI RECOMMENDED PRACTICE 970FIRST EDITION,DECEMBER 2017Special NotesAPI publications necessarily address problems of a general nature.With respect to particular circumstances one must comply with,local,state,and federal laws and regulations should be reviewed.API cannot fulfill the duties of employers,manufacturers,or suppliers to warn and properly train and equip their employees and others who may be exposed,to health and safety risks and cannot prescribe precautions,nor does API undertake their obligations under local,state,or federal laws.Information concerning safety and health risks and proper precautions with respect to particular materials and conditions shall be obtained from the employer,the manufacturer,the supplier of that material,or the material safety data sheet.Nothing contained in any API publication can be construed as granting any right,by implication or otherwise,for the manufacture,sale,or use of any method,apparatus,or product covered by letters patent.Do not construe anything contained in the publication as insuring anyone against liability for infringement of letters patent.Generally,API standards are reviewed and revised,reaffirmed,or withdrawn at least every five years.Sometimes a one-time extension of up to two years will be added to this review cycle.This publication will no longer be in effect five years after its publication date as an operative API standard or,where an extension has been granted,upon republication.Status of the publication can be ascertained from the API Standards Department telephone(202)682-8000.A catalog of API publications and materials is published annually and updated quarterly by API,1220 L Street,N.W.,Washington,D.C.20005,www.api.org.This document was produced under API standardization procedures that ensure appropriate notification and participation in the developmental process and is designated as an API standard.Questions concerning the interpretation of the content of this standard or comments and questions concerning the procedures under which this standard was developed should be directed in writing to the Director,Standards Department,American Petroleum Institute,1220 L Street,N.W.,Washington,D.C.20005,standardsapi.org.Requests for permission to reproduce or translate all or any part of the material published herein should also be addressed to the general manager.API standards are published to facilitate the broad availability of proven,sound engineering and operating practices.These standards do not obviate the need for applying sound engineering judgment regarding when and where these standards should be utilized.The formulation and publication of API standards is not intended in any way to inhibit anyone from using any other practices.Any manufacturer marking equipment or materials in conformance with the marking requirements of an API standard is solely responsible for complying with all the applicable requirements of that standard.API does not represent,warrant,or guarantee that such products do in fact conform to the applicable API standard.All rights reserved.No part of this work may be reproduced,translated,stored in a retrieval system,or transmitted by any means,electronic,mechanical,photocopying,recording,or otherwise,without prior written permission from the publisher.Contact the Publisher,API Publishing Services,1220 L Street,NW,Washington,DC 20005.Copyright 2017 American Petroleum InstituteContentsPage1Scope.12Normative References.33Terms,Definitions,and Acronyms.34Introduction to Corrosion Control Documents/Systems.64.1Characteristics.64.2Key Components of a CCD.64.3Target Audience .74.4Inspection Program.74.5Process Unit Integrity.85CCD Work Process.85.1General.85.2Premises and Assumptions Concerning the CCD Work Process .95.3CCD Team Members.105.4Roles,Responsibilities,and Accountabilities for the CCD Work Process.125.5Data Needed for the Team Meetings.135.6Unit Specific Corrosion Systems/Circuits.145.7Damage Mechanisms.165.8Desired Run Time.175.9Process Variables and IOWs.175.10Integration with Existing PSM and Operational Programs.185.11Updating the CCD.196Implementation.207Integrating CCDs with Other Related Work Processes.217.1CCDs as Part of New Construction or Revamp Project Deliverables.228Document Maintenance and Revalidation.228.1Updating CCDs.228.2Finalizing the Updated CCD and CMDs.23Annex A(informative)Example CCD Development and Implementation Process.24Annex B(informative)Corrosion and Materials Damage Mechanisms Checklist.27Annex C(informative)Training Course Contents.30Annex D(informative)Typical Systems for Selected Processes.32Annex E(informative)Example of a Simplified Corrosion Control Document.39Annex F(informative)CCDs as Part of New Construction and Revamp Project Deliverables.48Bibliography .50Figures1Work Process Map:CCD Development,Review,and Update.10Tables1CCD Documentation Responsibilities.112Suggested Information to be Reported for Corrosion Systems.153Suggested Information