ASME B31.8S 2020

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ASME B31.8S – 2020 Managing System Integrity of Gas Pipelines

Published By	Publication Date	Number of Pages
ASME	2020

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Description

ASME’s B31.8S Managing System Integrity of Gas Pipelines covers on-shore, gas pipeline systems constructed with ferrous materials, including pipe, valves, appurtenances attached to pipe, compressor units, metering stations, regulator stations, delivery stations, holders and fabricated assemblies. Its principles, processes and approaches apply to the entire system for all pipeline systems. B31.8S is specifically designed to provide the operator with the information necessary to develop and implement an effective integrity management program utilizing proven industry practices and processes. Effective system management can decrease repair and replacement costs, prevent malfunctions, and minimize system downtime. Key changes to this version include updates to the potential impact area requirements section and non-mandatory appendix A. Intended for manufacturers, users, constructors, designers, and others concerned with the design, fabrication, assembly, erection, examination, inspection, and testing of piping, plus all potential governing entities.

PDF Catalog

PDF Pages	PDF Title
4	CONTENTS
6	FOREWORD
7	ASME B31 COMMITTEE ROSTER
10	CORRESPONDENCE WITH THE B31 COMMITTEE
12	ASME B31.8S-2020 SUMMARY OF CHANGES
14	1 INTRODUCTION 1.1 Scope 1.2 Purpose and Objectives 1.3 Integrity Management Principles
15	1.4 Units of Measure 2 INTEGRITY MANAGEMENT PROGRAM OVERVIEW 2.1 General
16	Figures Figure 2.1-1 Integrity Management Program Elements
17	Figure 2.1-2 Integrity Management Plan Process Flow Diagram
18	2.2 Integrity Threat Classification 2.3 The Integrity Management Process
20	2.4 Integrity Management Program 3 CONSEQUENCES 3.1 General
21	3.2 Potential Impact Area
22	3.3 Consequence Factors to Consider 4 GATHERING, REVIEWING, AND INTEGRATING DATA 4.1 General 4.2 Data Requirements Figure 3.2.4-1 Potential Impact Area
23	4.3 Data Sources Tables Table 4.2.1-1 Data Elements for Prescriptive Pipeline Integrity Program
24	4.4 Data Collection, Review, and Analysis 4.5 Data Integration Table 4.3-1 Typical Data Sources for Pipeline Integrity Program
25	5 RISK ASSESSMENT 5.1 Introduction 5.2 Definition 5.3 Risk Assessment Objectives 5.4 Developing a Risk Assessment Approach
26	5.5 Risk Assessment Approaches
27	5.6 Risk Analysis Table 5.6.1-1 Integrity Assessment Intervals: Time-Dependent Threats, Internal and External Corrosion, Prescriptive Integrity Management Plan
28	5.7 Characteristics of an Effective Risk Assessment Approach
29	5.8 Risk Estimates Using Assessment Methods 5.9 Data Collection for Risk Assessment 5.10 Prioritization for Prescriptive-Based and Performance-Based Integrity Management Programs
30	5.11 Integrity Assessment and Mitigation 5.12 Validation 6 INTEGRITY ASSESSMENT 6.1 General
31	6.2 Pipeline In-Line Inspection
33	6.3 Pressure Testing 6.4 Direct Assessment
34	6.5 Other Integrity Assessment Methodologies 7 RESPONSES TO INTEGRITY ASSESSMENTS AND MITIGATION (REPAIR AND PREVENTION) 7.1 General
35	7.2 Responses to Pipeline In-Line Inspections
36	Table 7.1-1 Acceptable Threat Prevention and Repair Methods
39	Figure 7.2.1-1 Timing for Scheduled Responses: Time-Dependent Threats, Prescriptive Integrity Management Plan
40	7.3 Responses to Pressure Testing 7.4 Responses to Direct Assessment Inspections 7.5 Timing for Scheduled Responses 7.6 Repair Methods 7.7 Prevention Strategy/Methods
41	7.8 Prevention Options 8 INTEGRITY MANAGEMENT PLAN 8.1 General 8.2 Updating the Plan
42	8.3 Plan Framework 9 PERFORMANCE PLAN 9.1 Introduction
43	Table 8.3.4-1 Example of Integrity Management Plan for Hypothetical Pipeline Segment (Segment Data: Line 1, Segment 3) Table 8.3.4-2 Example of Integrity Management Plan for Hypothetical Pipeline Segment (Integrity Assessment Plan: Line 1, Segment 3)
44	9.2 Performance Measures Characteristics 9.3 Performance Measurement Methodology 9.4 Performance Measurement: Intrasystem Table 8.3.4-3 Example of Integrity Management Plan for Hypothetical Pipeline Segment (Mitigation Plan: Line 1, Segment 3)
45	Table 9.2.3-1 Performance Measures
46	Table 9.4-1 Performance Metrics
47	9.5 Performance Measurement: Industry Based 9.6 Performance Improvement 10 COMMUNICATIONS PLAN 11 MANAGEMENT OF CHANGE PLAN Table 9.4-2 Overall Performance Measures
48	12 QUALITY CONTROL PLAN
49	13 TERMS, DEFINITIONS, AND ACRONYMS Figure 13-1 Hierarchy of Terminology for Integrity Assessment
55	14 REFERENCES AND STANDARDS
58	NONMANDATORY APPENDIX A THREAT PROCESS CHARTS AND PRESCRIPTIVE INTEGRITY MANAGEMENT PLANS A-1 INTRODUCTION A-2 EXTERNAL CORROSION THREAT
59	Figure A-2.1-1 Integrity Management Plan, External Corrosion Threat (Simplified Process: Prescriptive)
60	A-3 INTERNAL CORROSION THREAT
61	Figure A-3.1-1 Integrity Management Plan, Internal Corrosion Threat (Simplified Process: Prescriptive)
62	A-4 STRESS CORROSION CRACKING THREAT
64	Table A-4.4-1 SCC Crack Severity Criteria Table A-4.4.1-1 Actions Following Discovery of SCC During Excavation
65	Figure A-5.1-1 Integrity Management Plan, Manufacturing Threat (Pipe Seam and Pipe; Simplified Process: Prescriptive) A-5 MANUFACTURING THREAT (PIPE SEAM AND PIPE)
67	Figure A-6.1-1 Integrity Management Plan, Construction Threat (Pipe Girth Weld, Fabrication Weld, Wrinkle Bend or Buckle, Stripped Threads/Broken Pipe/Coupling; Simplified Process: Prescriptive) A-6 CONSTRUCTION THREAT (PIPE GIRTH WELD, FABRICATION WELD, WRINKLE BEND OR BUCKLE, STRIPPED THREADS/BROKEN PIPE/COUPLING)
68	A-7 EQUIPMENT THREAT (GASKETS AND O-RINGS, CONTROL/RELIEF, SEAL/PUMP PACKING)
69	Figure A-7.1-1 IntegrityManagementPlan, Equipment Threat (GasketandO-Ring, Control/Relief, Seal/PumpPacking; Simplified Process: Prescriptive)
70	A-8 THIRD-PARTY DAMAGE THREAT [THIRD-PARTY INFLICTED DAMAGE (IMMEDIATE), VANDALISM, PREVIOUSLY DAMAGED PIPE]
71	Figure A-8.1-1 Integrity Management Plan, Third-Party Damage Threat [Third-Party Inflicted Damage (Immediate), Vandalism, Previously Damaged Pipe; Simplified Process: Prescriptive]
72	A-9 INCORRECT OPERATIONS THREAT A-10 WEATHER-RELATED AND OUTSIDE-FORCE THREAT (EARTH MOVEMENT, HEAVY RAINS OR FLOODS, COLD WEATHER, LIGHTNING)
73	Figure A-9.1-1 Integrity Management Plan, Incorrect Operations Threat (Simplified Process: Prescriptive)
74	Figure A-10.1-1 Integrity Management Plan, Weather-Related and Outside-Force Threat (Earth Movement, Heavy Rains or Floods, Cold Weather, Lightning; Simplified Process: Prescriptive)
76	NONMANDATORY APPENDIX B DIRECT ASSESSMENT PROCESS B-1 GENERAL B-2 EXTERNAL CORROSION DIRECT ASSESSMENT B-3 INTERNAL CORROSION DIRECT ASSESSMENT
77	NONMANDATORY APPENDIX C PREPARATION OF TECHNICAL INQUIRIES