ASME BPVC X 2023

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ASME BPVC.X-2023 Section X, Fiber-Reinforced Plastic Pressure Vessels

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ASME	2023	319

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Description

This Section provides requirements for construction of an FRP pressure vessel in conformance with a manufacturer’s design report. It includes production, processing, fabrication, inspection and testing methods required for the vessel. Section X includes three Classes of vessel design; Class I and Class III – qualification through the destructive test of a prototype and Class II – mandatory design rules and acceptance testing by nondestructive methods. These vessels are not permitted to store, handle or process lethal fluids. Vessel fabrication is limited to the following processes: bag-molding, centrifugal casting and filament-winding and contact molding. General specifications for the glass and resin materials and minimum physical properties for the composite materials are given. Intended for manufacturers, users, constructors, designers and others concerned with the design, fabrication, assembly, erection, examination, inspection and testing of pressure vessels, plus all potential governing entities.

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PDF Pages	PDF Title
5	TABLE OF CONTENTS
17	List of Sections
18	FOREWORD
20	STATEMENT OF POLICY ON THE USE OF THE ASME SINGLE CERTIFICATION MARK AND CODE AUTHORIZATION IN ADVERTISING STATEMENT OF POLICY ON THE USE OF ASME MARKING TO IDENTIFY MANUFACTURED ITEMS
21	Personnel
43	Correspondence With the Committee
45	INTRODUCTION 3 DESIGN 3.1 GENERAL 3.1.1 3.1.2 3.1.3 3.1.4
46	Table 1.1 Referenced Standards in This Section
47	3.2 LOW MODULUS CHARACTERISTICS 3.3 FATIGUE 3.3.1 3.3.2 3.3.3 3.3.4 3.4 CREEP, STRESS-RUPTURE, AND TEMPERATURE EFFECTS 3.5 FABRICATION 3.5.1 3.5.2 3.5.3
48	3.5.4 3.6 INSPECTION 3.6.1 3.6.2 3.7 LINERS 3.8 UNITS 3.8.1 3.8.2 3.8.3 3.8.4 3.8.5 3.8.6 3.8.7
49	SUMMARY OF CHANGES
50	Cross-Referencing in the ASME BPVC
51	PART RG General Requirements Article RG-1 Scope and Jurisdiction RG-100 Scope RG-110 Application Limitations RG-111 Design Pressure RG-112 Design Temperature
52	RG-113 Potable Water — Section IV Applications Only RG-114 Lethal Fluids1 RG-120 Jurisdiction of Section X RG-121 Classes of Vessels Outside the Jurisdiction of This Section
53	Article RG-2 Organization RG-200 Organization of This Section RG-201 Parts RG-202 Articles, Paragraphs, and Subparagraphs
54	Article RG-3 Responsibilities and Duties RG-300 Responsibilities and Duties RG-310 User’s Responsibilities — Design Specification RG-320 Fabricator’s Responsibilities RG-321 Fabricator’s Design Report
56	RG-322 Certification of Compliance RG-323 Requirements for Quality Control RG-330 Inspector’s Duties
57	Article RG-4 Fabrication Methods RG-400 Fabrication Methods RG-401 Bag Molding RG-402 Centrifugal Casting RG-403 Contact Molding RG-404 Filament Winding
58	PART RM Material Requirements Article RM-1 General Requirements RM-100 Laminate Materials RM-110 Fiber System RM-111 Glass Fibers RM-112 Carbon or Graphite Fibers RM-113 Aramid Fibers RM-114 Fiber Surface Treatment RM-120 Resin System RM-121 Resin Specification
59	RM-122 Curing Agents RM-123 Laminate Cure Tables Table RM-120.1 Resin Systems Required Certification by Resin Manufacturer Table RM-120.2 Resin Systems Required Test by Vessel Fabricator
60	RM-140 Use of Two or More Materials Specifications or Processes in Fabricating a Class I Vessel RM-150 Mechanical Properties of Lamina for Class II Vessels RM-151 Examples of Lamina RM-152 Lamina Specification RM-153 Lamina Properties RM-154 Laminate Analysis
61	Article RM-2 Miscellaneous Pressure Parts RM-200 General Requirements RM-210 Miscellaneous Metallic Parts RM-211 For Class I Vessels RM-212 For Class II Vessels
62	PART RD Design Requirements Article RD-1 General RD-100 Scope RD-101 Design Basis RD-110 Definitions
63	RD-111 Design Pressure RD-112 Design Temperature RD-113 Maximum Allowable Working Pressure RD-114 Qualification Pressure RD-115 Test Pressure RD-116 Pressure Relief Device Settings RD-120 Loadings RD-121 Stress Due to Combined Loadings
64	RD-130 Design Restrictions RD-140 Design Allowances for Degradation RD-150 Methods of Fabrication in Combination RD-151 Materials in Combination RD-152 Combination Units RD-160 Proof of Design Adequacy
65	Article RD-2 Shells of Revolution Under Internal Pressure RD-200 General
66	Article RD-3 Shells of Revolution Under External Pressure RD-300 General RD-310 Qualification of Vessels for External Pressure Service RD-311 Class I Vessels for Both External and Internal Pressure Service RD-312 Class I Vessels for External Pressure Service Only RD-313 Class II Vessels for Both External and Internal Pressure Service RD-314 Class II Vessels for External Pressure Only
67	Article RD-4 Secondary Bonding RD-400 Design of Secondary Bonded Joints
68	Article RD-5 Openings and Their Reinforcement RD-500 General RD-510 Qualification RD-511 Qualification of Class I Vessels RD-512 Qualification of Class II Vessels RD-520 Restrictions for Class II Vessels
69	Article RD-6 Nozzles and Other Connections RD-600 General RD-610 Qualifications RD-611 Qualification of Class I Vessels RD-612 Qualification of Class II Vessels RD-613 Restrictions for Class II Vessels RD-620 Integral Flanged Nozzles for Class II Vessels RD-620.1 Integral Flange Physical Dimensions. RD-620.2 Flange Bolt Holes. RD-620.3 Flange Faces. RD-620.4 Gussets. RD-620.5 Nozzle Installation.
70	RD-621 Flange Design for Class II Vessels
71	Table RD-620.1 Flange and Nozzle Dimensions for Hand Lay‐Up and Pressure-Molded Flanges
73	Figures Figure RD-620.3 Flange Tolerances
74	Figure RD-620.4(a) Plate‐Type Gussets
75	Figure RD-620.5 Flush Nozzle Installation
76	Figure RD-620.6 Penetrating Nozzle Installation
77	Article RD-7 Bolted Connections RD-700 Flat Heads, Covers, and Blind Flanges RD-700.1 For Class I Vessels. RD-700.2 For Class II Vessels. RD-700.3 Nomenclature. RD-701 Minimum Required Thickness RD-710 Bolted Flanged Connections RD-711 Flanges and Flanged Fittings Conforming to ANSI B16.5 and B16.1 Figure RD-700.1 Acceptable Types of Flat Heads for Class I Vessels
78	RD-712 Flanges Not Conforming to ANSI B16.5‐1981 RD-720 Openings in Flat Metallic Heads, Metallic Covers, and Metallic Blind Flanges RD-721 Reinforcement Requirements RD-730 Welded or Brazed Connections to Metal Flat Heads, Covers, or Blind Flanges
79	Article RD-8 Quick‐Actuating Closures (for Class I Vessels Only) RD-800 General Design Requirements RD-801 Specific Design Requirements RD-802 Required Pressure‐Indicating Devices RD-803 Qualification
80	Article RD-9 Attachments and Supports RD-900 General RD-910 Qualification
81	Article RD-10 Access and Inspection Openings RD-1000 General Requirements RD-1001 Requirements for Vessels 12 in. (300 mm) in Diameter and Smaller RD-1002 Requirements for Vessels Over 12 in. (300 mm) but Not Over 16 in. (400 mm) in Inside Diameter RD-1010 Equipment of Vessels Requiring Access or Inspection Openings RD-1020 Size of Manhole Openings for Class I Vessels RD-1030 Size of Manhole Openings for Class II Vessels
82	RD-1031 Design of Access and Inspection Openings in Shells and Heads RD-1040 Minimum Gasket Bearing Widths for Manhole Cover Plates RD-1050 Threaded Openings in Class I Vessels RD-1051 Materials for Threaded Plugs and Caps RD-1052 Permissible Types of Threads RD-1060 Threaded Openings in Class II Vessels
83	Article RD-11 Mandatory Design Rules for Class II Vessels RD-1100 General RD-1110 Design Basis RD-1111 Certification of Design RD-1120 Design Limitations RD-1130 Design Acceptability RD-1140 Loadings RD-1150 Vessel Parts Subject to Design Analysis RD-1160 Laminate Composition RD-1161 Scope
84	RD-1162 Fabrication Methods RD-1163 Engineering Constants Figure RD-1120.1 Design Limitations for Class II Vessels
85	RD-1164 Thickness of Vessel Parts RD-1165 Resin–Fiber Ratio RD-1166 Characterization of Laminates RD-1170 Design Rules — Method A RD-1170.1 Scope. RD-1170.2 Design Parameters. RD-1171 Thickness of Shells
86	RD-1172 Vessel Shells Under External Pressure
87	RD-1173 Thickness of Heads RD-1174 Openings in Shells and Heads Table RD-1173.2 Values of Spherical Radius Factor Ko for Ellipsoidal Heads With Pressure on Convex Side
88	Figure RD-1174.2 Dimensions of Reinforcing Pad and Nozzle Overlays
89	Figure RD-1174.3 Stress Concentration Factors for a Circular Hole in a Pressurized Cylindrical Shell
90	RD-1175 Joining Vessel Parts
91	RD-1176 Design of Flanges Figure RD-1175.2 Head/Shell or Shell/Shell Overlay Dimensions
93	Figure RD-1176.1 Design of Full‐Face Nozzle Flanges
95	Figure RD-1176.2 Values of V (Integral Flange Factor)
96	Figure RD-1176.3 Values of F (Integral Flange Factor)
97	Figure RD-1176.4 Values of f (Hub Stress Correction Factor)
98	RD-1180 Discontinuity Analysis — Method B RD-1180.1 Scope. RD-1180.2 Design Parameters. Figure RD-1176.5 Values of T, Z, Y, and U (Terms Involving K)
99	RD-1181 Definitions RD-1182 Stress Analysis RD-1183 External Pressure and Buckling
100	RD-1184 Openings and Joints of Vessel Parts RD-1185 Thermal Stresses RD-1186 Attachments RD-1187 Design Acceptability RD-1188 Basis for Determining Stresses
102	RD-1189 Procedure for Calculating the Stress Ratio
104	Article RD-12 Laminate Stiffness Coefficients RD-1200 Laminate Stiffness Coefficients RD-1210 Stiffness Coefficients for Design by Method B Rules RD-1220 Nomenclature
105	Figure RD-1220.1 Moment Resultants
106	RD-1230 Lamina Reduced Stiffness Figure RD-1220.3 Coordinate Systems
107	RD-1240 Stiffness Coefficients for the Laminate
108	RD-1250 Procedure for Calculating the Stiffness Coefficients Figure RD-1250.1 Geometry of an N‐Layered Laminate
109	PART RF Fabrication Requirements Article RF-1 General Requirements RF-100 Scope RF-110 Procedure Specifications
110	Article RF-2 Special Fabrication Requirements for Bag‐Molding Process (for Class I Vessels Only) RF-200 Fiber Content RF-201 Fiber Composition RF-210 Form of Fiber Reinforcement RF-211 Resin System RF-212 Cure Figure RF-210.1 Fiber Side Wall Lay‐Up for Bag Molding Figure RF-210.2 Head or End Preform for Cylindrical Vessel
111	RF-220 Molds RF-221 Mold Material RF-222 Mold Release Agent RF-223 Mold Removal RF-224 Pressure Bags RF-230 Liners RF-231 Liner Material RF-232 Provisions in Liners for Openings in Vessels RF-240 Openings in Vessels RF-250 Molded‐in Fittings
112	Article RF-3 Special Fabrication Requirements for Centrifugal‐Casting Process (for Class I Vessels Only) RF-300 Fiber Content RF-301 Fiber Composition RF-310 Form of Reinforcement RF-311 Resin System RF-312 Cure RF-320 Mandrels RF-321 Mandrel Material RF-322 Mandrel Release Agent RF-323 Mandrel Removal RF-324 Matched‐Die‐Molded Heads RF-330 Liners RF-331 Liner Material RF-332 Provisions in Liners for Vessel Openings RF-340 Openings in Vessels
113	Article RF-4 Special Fabrication Requirements forFilament‐Winding Process (Classes I and II) RF-400 Fiber Content RF-400.1 Fiber Content in Supplementary Pads. RF-401 Fiber Composition RF-410 Form of Reinforcement RF-410.1 Patterns. RF-410.2 Alignment With Stresses. RF-410.3 Wall Thickness. RF-411 Resin System RF-412 Cure RF-413 Filament Winding RF-420 Mandrels RF-421 Mandrel Material RF-422 Mandrel Release Agent
114	RF-423 Mandrel Removal RF-430 Liners RF-431 Liner Material RF-432 Provisions in Liners for Vessel Openings RF-440 Openings in Vessels
115	Article RF-5 Special Fabrication Requirements forContact‐Molding Process (Classes I and II) RF-500 Fiber Content RF-501 Fiber Composition RF-510 Form of Fiber Reinforcement RF-511 Resin System RF-512 Cure RF-520 Molds RF-521 Mold Material RF-522 Mold Release Agent RF-523 Mold Removal RF-530 Liners RF-531 Liner Material RF-532 Provisions in Liners for Openings in Vessels
116	RF-540 Openings in Vessels
117	Article RF-6 Special Fabrication Requirements for Matched Molded Heads (Used for Closures for Centrifugally Cast Vessels — for Class I Vessels Only) RF-600 Content RF-601 Fiber Composition RF-610 Form of Fiber Reinforcement RF-611 Resin System RF-612 Cure Figure RF-610.1 Fiber Preform and Insert for Head for Centrifugally Cast Vessel
118	RF-620 Molds RF-621 Mold Material RF-622 Mold Release Agent RF-623 Head Removal RF-624 Pressure Bags RF-630 Openings in Heads Figure RF-610.2 Fiber Head or End Preformed Inserts for Centrifugally Cast Vessel Heads
119	Article RF-7 Special Fabrication Requirements for Joining Components RF-700 Procedure Specifications and Qualifications
120	PART RQ Qualification Requirements Article RQ-1 Scope RQ-100 Responsibility for Qualification RQ-101 Fabrication Processes RQ-102 Production Work Without Qualifications RQ-110 Maintenance of Procedure Specification and Qualification Records RQ-120 Procedure Specification Qualification Forms
121	RQ-130 Means to Be Used in Qualifying Class I Designs and Fabricating Procedures RQ-131 Qualification Checks RQ-132 Qualification Tests RQ-140 Means for Qualifying Class II Vessel Design and Fabrication RQ-141 Qualification Checks
122	RQ-142 Acceptance Test
123	Article RQ-2 Special Requirements for Bag‐Molding Procedure Qualification (Class I Vessels) RQ-200 Essential Variables RQ-201 Nonessential Variables
124	Article RQ-3 Special Requirements for Centrifugal‐Casting Procedure Qualification (Class I Vessels) RQ-300 Essential Variables RQ-301 Nonessential Variables
125	Article RQ-4 Special Requirements for Filament‐Winding Procedure Qualification (Class I Vessels) RQ-400 Essential Variables RQ-401 Nonessential Variables
126	Article RQ-5 Special Requirements for Contact‐Molding Procedure Qualification (Class I Vessels) RQ-500 Essential Variables RQ-501 Nonessential Variables
127	Article RQ-6 Special Requirements for Class II Vessels RQ-600 Essential Design Variables RQ-601 Nonessential Variables
128	PART RR Pressure Relief Devices
129	PART ROP Overpressure Protection Article ROP-1 General Requirements ROP-100 General ROP-110 Definitions ROP-120 Responsibilities ROP-130 Determination of Pressure-Relieving Requirements
130	ROP-140 Overpressure Limits ROP-150 Permitted Pressure Relief Devices ROP-160 Pressure-Setting and Performance Requirements ROP-170 Installation
132	PART RT Rules Governing Testing Article RT-1 Testing Requirements RT-100 Scope RT-110 Fabricator’s Responsibility RT-111 Certification of Competency for Nondestructive Examination Personnel RT-112 Test Reports RT-120 Inspector’s Duties
133	Article RT-2 Design and Procedure Qualification Test Requirements for Class I Vessels RT-200 General RT-201 Alternative Requirements RT-202 Omitted or Reduced-in-Size Nozzles or Openings for Filament-Wound Vessels RT-210 Qualification Checks and Examinations RT-211 Vessel Thickness
134	RT-212 Weight of Resin and Fiber RT-213 Vessel Weight RT-214 Visual Examination of Vessels RT-220 Qualification Tests RT-221 Barcol Hardness Tests RT-222 Volumetric Expansion Tests RT-223 Cyclic Pressure and Hydrostatic Pressure Qualification Tests
137	Article RT-3 Quality Control Test and Examination Requirements for Class I Vessels RT-300 General RT-301 Requalification of Procedure Specification RT-310 Frequency of Cyclic Pressure and Qualification Pressure Tests RT-320 Frequency of Determination of Weight of Resin and Fiber RT-330 Frequency of Volumetric Expansion Tests RT-340 Frequency of Thickness Checks
138	Article RT-4 Production Test Requirements for Class I Vessels RT-400 General RT-410 Visual Examination RT-411 Acceptance Standards RT-412 Repairs of Imperfections
139	RT-413 Visual Examination of Repaired Areas RT-420 Thickness Check RT-430 Vessel Weight RT-440 Barcol Hardness Test RT-450 Hydrostatic Leakage Test RT-450.1 Vessels Without Welded Metal Components. RT-450.2 Vessels With Welded Metal Components. RT-451 Vessels With Liners RT-452 Excessive Hydrostatic Leakage Test Pressure
140	RT-460 Conditions Under Which Pneumatic Leakage Test May Be Used RT-460.1 When Vessels Cannot Be Safely Filled With Water. RT-460.2 When Traces of Test Fluid Cannot Be Tolerated. RT-461 Required Pneumatic Test Pressure and Holding Time
141	Article RT-5 Hydrostatic Testing Procedures and Equipment for Class I and Class II Vessels RT-500 Provision of Vents at High Points RT-501 Examination of Test Equipment RT-502 Rate of Applying Test Pressure RT-510 Test Gages RT-520 Calibration of Acoustic Emission Equipment
142	Article RT-6 Acceptance Test Procedure for Class II Vessels RT-600 General RT-610 Acceptance Checks and Examinations RT-620 Acceptance Tests
143	RT-621 Vessels Intended for Internal Pressure Only RT-622 Vessels Intended for Both Internal and External Pressure RT-623 Repaired Vessels RT-630 Penetrant Examination Table RT-620.1 Evaluation Criteria
144	Article RT-7 Determination of Mechanical Properties of Lamina for Use With Class II Vessels RT-700 Required Mechanical Properties of the Lamina RT-701 Lamina Test RT-702 Laminate Elastic Properties RT-703 Elastic and Strength Constants for Mat, Knitted Fabric, or Woven Roving Reinforced Lamina
145	RT-704 Elastic and Strength Constants for Filament‐Wound Lamina
146	Article RT-8 Test Methods for Determining Damage‐Based Design Criterion RT-800 Scope RT-810 Referenced Documents RT-820 Apparatus, Loading Procedure, and Data Analysis
147	PART RI Inspection Requirements Article RI-1 General RI-100 Scope RI-101 Fabricator’s Responsibility RI-110 Qualification of Inspectors RI-120 Access for Inspector RI-130 Inspector’s Duties RI-131 Inspector’s Duty Relative to Qualification Tests of Prototype Vessels RI-132 Inspector’s Duty Relative to the Fabricator’s Design Report RI-133 Inspector’s Duty Relative to Specific Vessels
148	RI-134 Inspector’s Duty Relative to Acceptance Testing of Class II Vessels RI-140 Inspection of Material RI-150 Inspection During Fabrication RI-160 Alternative Inspection for Multiple, Duplicate Fabrication
149	Article RI-2 Special Inspection Requirements for Bag Molding (Class I Vessels) RI-200 Check of Bag‐Molding Procedure Specification Qualification RI-201 Additional Tests RI-202 Check of Fiber Weight RI-203 Check of Form of Reinforcement RI-204 Check of Fabrication Procedures RI-205 Check of Cure RI-206 Check of Uniformity of Heating for Cure of Vessel RI-210 Visual Inspection RI-211 Tests and Retests
150	Article RI-3 Special Inspection Requirements for Centrifugal Casting (Class I Vessels) RI-300 Check of Centrifugal‐Casting Procedure Specification Qualification RI-301 Additional Tests RI-302 Check of Fiber Weight RI-303 Check of Form of Reinforcement RI-304 Check of Fabrication Procedures RI-305 Check of Cure RI-306 Check of Uniformity of Heating for Cure of the Vessel RI-307 Check of Attachment of Heads to Cylinder RI-310 Visual Inspection RI-311 Tests and Retests
151	Article RI-4 Special Inspection Requirements for Filament Winding RI-400 Check of Filament‐Winding Procedure Specification Qualification RI-401 Additional Tests RI-402 Check of Fiber Weight RI-403 Check of Materials RI-404 Check of Fabrication Procedures RI-405 Check of Cure RI-406 Check of Uniformity of Heating for the Cure of the Vessel RI-410 Visual Inspection RI-411 Tests and Retests
152	Article RI-5 Special Inspection Requirements for Contact Molding RI-500 Check of Contact‐Molding Procedure Specification Qualification RI-501 Additional Tests RI-502 Check of Fiber Weight RI-503 Check of Form of Reinforcement RI-504 Check of Fabrication Procedures RI-505 Check of Cure RI-506 Check of Uniformity of Heating for Post Cure of Vessel if Required RI-510 Visual Inspection RI-511 Tests and Retests
153	PART RS Marking, Stamping, and Reports Article RS-1 Contents, Methods, and Means of Marking RS-100 Required Marking for Vessels RS-101 Methods of Marking Vessels With Two or More Independent Chambers RS-110 Application of Stamp to Vessel Figure RS-100.1 Official Certification Mark to Denote the American Society of Mechanical Engineers’ Standard
154	RS-120 Part Marking RS-130 Nameplate RS-131 Stamping and Attachment of Nameplates RS-132 Stamping and Marking of Nameplates RS-133 Duplicate Nameplate Figure RS-132.1 Form of Stamping and Marking
155	Article RS-2 Use of Certification Mark Stamp RS-200 Certification Mark Stamp Bearing Official Mark RS-201 Application for Certification Mark Stamp RS-202 Authorization to Use Certification Mark Stamp RS-203 Regulations Concerning Issuance and Use of Stamps RS-204 Obtaining Stamps
156	Article RS-3 Report Forms RS-300 Fabricator’s Data Reports RS-301 Partial Data Reports RS-302 Retention of Data Reports
157	MANDATORY APPENDICES Mandatory Appendix 1 Quality Control System 1-100 General 1-110 Outline of some of the Features to Be Included in the Quality Control System
159	Mandatory Appendix 2 Capacity Conversions for Safety Valves
160	Mandatory Appendix 4 Glossary of Terms Related to Fiber‐Reinforced Plastics
168	Mandatory Appendix 5 Specific Gravity of Liquid Resins 5-100 Introduction 5-200 Apparatus 5-300 Safety Precautions 5-400 Procedure 5-500 Calculations 5-600 Report
169	Mandatory Appendix 6 Structural Laminate Visual Acceptance Criteria 6-100 Structural Laminate Visual Acceptance Criteria
170	Table 6-100.1 Structural Laminate Visual Acceptance Criteria for Class I Pressure Vessels
172	Table 6-100.2 Structural Laminate Visual Acceptance Criteria for Class II Pressure Vessels
174	Table 7-100.1 Standard Units for Use in Equations Mandatory Appendix 7 Standard Units for Use in Equations
175	Mandatory Appendix 8 Class III Vessels With Liners for High Pressure Fluids in Stationary Service 8-100 Scope
176	8-200 General 8-300 Materials
177	Table 8-300.4.1-1 Resin Systems: Required Certifications and Tests 8-400 Design
178	8-500 Fabrication
179	8-600 Examination
180	Table 8-600.2.1-1 Visual Acceptance Criteria for FRP Laminate (U.S. Customary Units)
181	Table 8-600.2.1-2 Visual Acceptance Criteria for FRP Laminate (SI Units)
184	8-700 Testing
186	Table 8-700.2.1-1 Qualification Tests
190	Figure 8-700.5.11.1-1 Pendulum Impact Test 8-800 Stamping and Nameplates 8-900 Quality Program
191	8-1000 Retention of Data Reports
192	Mandatory Appendix 9 Establishing Governing Code Editions, Addenda, and Cases for FRP Pressure Vessels 9-100 General 9-200 Design 9-300 Materials 9-400 Fabrication 9-500 Examination
193	9-600 Inspection 9-700 Testing 9-800 Overpressure Protection 9-900 Field Assembly 9-1000 Certification
194	Figure 10-201-1 General Arrangement Mandatory Appendix 10 Laminates With Load-Sharing Metallic Shells forHigh Pressure Service 10-100 Scope 10-200 General Requirements
195	Figure 10-201-2 Laminate Termination 10-300 Materials
196	Table 10-305.1-1 Resin Supplier Certifications
197	Table 10-305.1-2 Tests by Laminate Manufacturer
198	Table 10-307-1 Pre-Preg Supplier Certifications Table 10-307-2 Pre-Preg Systems Tests by CRPV Manufacturer 10-400 Fabrication
200	10-500 Examination and Testing Requirements
201	Table 10-503-1 Visual Acceptance Criteria for FRP Laminate (U.S. Customary Units)
203	Table 10-503-1M Visual Acceptance Criteria for FRP Laminate (SI Units)
204	Table 10-503-2 Acoustic Emission Evaluation Criteria
205	10-600 Laminate Procedure Qualification
206	10-700 Inspector’s Duties
208	NONMANDATORY APPENDICES Nonmandatory Appendix AA Suggested Methods of Preliminary Designfor Class I Vessels Article AA-1 General AA-100 Scope
209	Article AA-2 Shells of Revolution Under Internal Pressure AA-200 General
210	AA-210 Die‐Formed Heads, Pressure on Concave Side
211	Article AA-3 Shells of Revolution Under External Pressure AA-300 General Requirements
212	Article AA-4 Reinforcement of Openings in Vessels AA-400 General Requirements AA-410 Reinforcement for Internal Pressure
213	Article AA-5 Attachments and Supports AA-500 General AA-510 Attachments AA-520 Supports
214	Figure AA-522.1 Saddle‐Type Supports Figure AA-523.1 Ring or Flange Support
215	Figure AA-524.1 Metal Attachment in Vessel End Figure AA-524.2 Metal Attachments in Thickened Ends
216	Nonmandatory Appendix AB Installation and Operation AB-100 Introduction
218	Figure AC-100.1 Nonmandatory Appendix AC Discontinuity Stresses for Class II, Method B Vessels Article AC-1 Examples of Discontinuity Stresses AC-100 Example Illustrating the Application of Discontinuity Analysis
219	Figure AC-100.2
220	Figure AC-100.3 Figure AC-100.4
221	Figure AC-100.5
224	Figure AC-200 Symbols and Sign Convention Article AC-2 Examples of Stress Analysis of Cylindrical Shells AC-200 Sign Convention and Nomenclature
225	AC-210 Principal Stresses and Stress Intensities Due to Internal Pressure AC-220 Bending Analysis for Uniformly Distributed Edge Loads AC-230 Displacements, Bending Moments, and Shearing Forces in Terms of Conditions at Reference Edge, x = 0
226	AC-240 Principal Stresses Due to Bending
227	Article AC-3 Examples of Stress Analysis of Spherical Shells AC-300 Scope AC-310 Nomenclature and Sign Convention
228	Figure AC-310 AC-320 Principal Stresses and Stress Intensities Resulting From Internal or External Pressure
229	AC-330 Bending Analysis for Uniformly Distributed Edge Loads
230	AC-340 Alternate Bending Analysis of a Hemispherical Shell Subjected to Uniformly Distributed Edge Loads
231	Article AC-4 Examples of Stress Analysis of Flat Circular Heads AC-400 Scope AC-410 Nomenclature and Sign Convention AC-420 Pressure and Edge Loads on Circular Flat Plates
232	Figure AC-410 Figure AC-421 Figure AC-422 Figure AC-430 AC-430 Flat Plate Pressure Vessel Heads
233	Figure AC-431 AC-440 Geometry Constants
234	Table AC-440.1 AC-450 Stress Intensities in a Flat Plate
235	Figure AD-201 Nonmandatory Appendix AD Laminate Theory AD-100 Scope AD-200 Standard Notation
236	Figure AD-202 Reference Coordinates AD-300 Basic Assumptions AD-310 Nomenclature AD-400 Lamina (Ply) Properties AD-500 Illustrative Example
237	Figure AD-500 Table AD-500 Assumed Lamina Elastic and Strength Properties
239	Table AD-501 Transformed Modulus Components, 106 psi
241	Figure AD-503 Figure AD-505
242	Table AD-506 Matrices for Illustrative Example
243	Table AD-507.2 Off‐Axis Mechanical Strain
244	Table AD-507.3 On‐Axis Mechanical Strain
245	AD-510 Strain‐Space Failure Envelopes
247	Table AD-510 Strain‐Space Envelope Coordinates
249	Figure AD-510 Failure Envelopes — Example Laminate in Strain Space
250	Nonmandatory Appendix AF Examples for Design Rules for Class II Vessels AF-100 General AF-200 Cylindrical Shells Under Uniform Internal Pressure (See RD-1171.1) AF-210 Spherical Shells Under Internal Pressure (See RD-1171.2) AF-300 Cylindrical Shells Under External Pressure (See RD-1172.1)
251	AF-310 Spherical Shells Under Uniform External Pressure (See RD-1172.2) AF-400 Thickness of Heads Under Internal Pressure (See RD-1173.1) AF-410 Thickness of Heads Under External Pressure (See RD-1173.2) AF-420 Reinforcement of Openings and Nozzle Attachments (See RD-1174.2)
252	AF-500 Head‐to‐Shell Joint Overlay Subject to Internal Pressure (See RD-1175.2)
253	Table AG-1 Guide to Information Appearing on Certificate of Authorization (See Figure AG-1) Nonmandatory Appendix AG Guide to Information Appearing on Certificate of Authorization (See Figure AG-1)
254	Figure AG-1 Sample Certificate of Authorization
255	Nonmandatory Appendix AH Guidance for the Use of U.S. Customary and SI Units in the ASME Boiler and Pressure Vessel Code AH-100 Use of Units in Equations AH-200 Guidelines Used to Develop SI Equivalents
257	AH-300 Soft Conversion Factors
258	Nonmandatory Appendix AI Rigorous NASA SP‐8007 Solution for Lateral and Longitudinal Pressure AI-100
259	AI-200 Buckling Example
262	Table AJ-1 Latest Revision and Year Date of Forms Referenced in This Code Nonmandatory Appendix AJ Forms Required by Section X
263	Forms FORM Q-106 RECOMMENDED FORM FOR QUALIFYING THE VESSEL DESIGN AND THE PROCEDURE SPECIFICATION USED IN FABRICATING BAG-MOLDED AND CENTRIFUGALLY CAST FIBER-REINFORCED PLASTIC PRESSURE VESSELS (CLASS I) (Revision D — 2023)
265	FORM Q-107 RECOMMENDED FORM FOR QUALIFYING THE VESSEL DESIGN AND THE PROCEDURE SPECIFICATION USED IN FABRICATING FILAMENT-WOUND FIBER-REINFORCED PLASTIC PRESSURE VESSELS (CLASS I) (Revision D — 2023)
267	FORM Q-108 RECOMMENDED FORM FOR QUALIFYING THE VESSEL DESIGN AND THE PROCEDURE SPECIFICATION USED IN FABRICATING CONTACT-MOLDED, FIBER-REINFORCED PLASTIC PRESSURE VESSELS (CLASS I) (Revision D — 2023)
270	FORM Q-115 RECOMMENDED FORM FOR QUALIFYING THE DESIGN AND THE PROCEDURE SPECIFICATION USED IN ADHESIVE BONDING OF PARTS OF FIBER-REINFORCED PLASTIC PRESSURE VESSELS (CLASS I) (Revision D — 2023)
272	Figure Q-115.1Schematic Views of Permissible Joint Designs for Adhesive‐Bonded Cylinder Joints for Tensile Tests(Revision B — 2023)
274	FORM Q-120 PROCEDURE SPECIFICATION FOR CLASS II VESSELS (Revision E — 2023) Part I — Fabrication
284	FORM RP-1 FABRICATOR’S DATA REPORT FOR FIBER-REINFORCED PLASTIC PRESSURE VESSELS (CLASS I) (Revision E — 2023) As Required by the Provisions of the ASME Boiler and Pressure Vessel Code
286	Table AJ-2 Guide for Completing Form RP-1 (Revision F — 2023)
287	FORM RP-2 FABRICATOR’S PARTIAL DATA REPORT (CLASS I) A Part of a Fiber-Reinforced Plastic Pressure Vessel Fabricated by One Manufacturer for Another Manufacturer (Revision E — 2023) As Required by the Provisions of the ASME Boiler and Pressure Vessel Code
289	Table AJ-3 Guide for Completing Form RP-2 (Revision D — 2023)
290	FORM RP-3 FABRICATOR’S DATA REPORT FOR CLASS II VESSELS (Revision F — 2023) As Required by the Provisions of the ASME Boiler and Pressure Vessel Code
292	Table AJ-4 Guide for Completing Form RP-3 (Revision G — 2023)
293	FORM RP-4 FABRICATOR’S PARTIAL DATA REPORT FOR CLASS II VESSELS A Part of a Fiber-Reinforced Plastic Pressure Vessel Fabricated by One Fabricator for Another Fabricator (Revision E — 2023) As Required by the Provisions of the ASME Boiler and Pressure Vessel Code
295	Table AJ-5 Guide for Completing Form RP-4 (Revision D — 2023)
296	FORM RP-5 FABRICATOR’S DATA REPORT SUPPLEMENTARY SHEET (Revision C — 2017) As Required by the Provisions of the ASME Code Rules, Section X
297	Table AJ-6 Guide for Completing Form RP-5 (Revision D — 2023)
298	FORM CPV-1 FABRICATOR’S DATA REPORT FOR COMPOSITE REINFORCED PRESSURE VESSELS (CLASS III) (Revision B — 2023) As Required by the Provisions of the ASME Boiler and Pressure Vessel Code
300	Table AJ-7Guide for Completing Fabricator’s Data Report CPV-1
302	FORM CPV-2 RECOMMENDED FORM FOR QUALIFYING THE LAMINATE DESIGN AND THE LAMINATE PROCEDURE SPECIFICATION USED IN THE FABRICATIONOF COMPOSITE REINFORCED PRESSURE VESSELS (CLASS III) (Revision B — 2023) As required by the Provisions of the ASME Boiler and Pressure Vessel Code
305	Nonmandatory Appendix AK Lamina Elastic Constants — Micromechanics AK-100 Lamina Elastic Constants AK-200 Nomenclature AK-300 Preliminary Calculations
306	AK-400 Micromechanics Equations for a Unidirectional Layer
308	AK-500 Micromechanics of a Randomly Distributed, Fiber-Reinforced Lamina
314	Nonmandatory Appendix AL Fire and Excessive Heat Exposure Guidance AL-100 General AL-200 Suggested Methods to Mitigate Fire Exposure
316	Nonmandatory Appendix AM Guide to the Relocation of Part RR Requirements
317	Endnotes