1、AN AMERICAN NATIONAL STANDARD ASME PVHO-22016(Revision of ASME PVHO-22012)Safety Standardfor Pressure Vessels for Human Occupancy: In-Service GuidelinesASME PVHO-22016(Revision of ASME PVHO-22012)Safety Standardfor Pressure Vesselsfor Human Occupancy:In-Service GuidelinesAN AMERICAN NATIONAL STANDAR
2、DTwo Park Avenue New York, NY 10016 USADate of Issuance: June 29, 2016The next edition of this Standard is scheduled for publication in 2019.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard. Periodically certain actions of the ASME PVHO Committ
3、ee may be published as Cases.Cases and interpretations are published on the ASME Web site under the Committee Pages athttp:/cstools.asme.org/ as they are issued.Errata to codes and standards may be posted on the ASME Web site under the Committee Pages toprovide corrections to incorrectly published i
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11、r otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersTwo Park Avenue, New York, NY 10016-5990Copyright 2016 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword ivCommittee Roster . vCorrespondence
12、 With the PVHO Committee viiiSummary of Changes ixSection 1 General . 11-1 Introduction and Scope 11-2 Responsibilities and Jurisdictional Considerations . 11-3 In-Service Evaluations, Repairs, and Modifications of PVHOs . 11-4 PVHO and PVHO Systems Documentation . 21-5 Owners Manual . 21-6 Maintena
13、nce Requirements . 3Section 2 Viewports. 42-1 Responsibilities 42-2 Factors Affecting Service Life . 42-3 Handling of PVHO Windows 52-4 Operational and Maintenance Inspections of PVHO Viewports 62-5 Categories of Damage 132-6 Repair of Damaged PVHO Windows . 132-7 Mechanical Property Testing . 15Tab
14、les2-4.1-1 Periodic Inspection Requirements . 62-4.1-2 Limits for Blemishes or Flaws on Window Surfaces . 72-4.1-3 Limits for Blemishes or Flaws on All Other Window Surfaces . 92-4.1-4 Limits on Chipping of Sharp Edges on Windows . 102-4.3-1 Maximum Intervals for Maintenance Viewport Inspection . 11
15、2-4.3-2 Maximum Intervals for Refurbishment 11FormsVP-1 Viewport Inspection . 18VP-2 Acrylic Window Repair Certification for Windows Repaired by the User(or His Authorized Agent) . 19VP-3 Acrylic Window Repair Certification for Severely Damaged Windows . 20Mandatory AppendicesI Definitions . 23II Re
16、ference Standards and Specifications . 25III Quality Assurance Program for Repair of Severely Damaged Windows 26IV Additional Window Repair Requirements and Forms . 29V Partial List of Harmful Substances and Acceptable Products . 35VI Mechanical Testing Computations and Forms . 37Nonmandatory Append
17、icesA Checklists and Logs for PVHO Operation 41B Operation of Submersible Craft . 42iiiFOREWORDIn 1998 a PVHO Task Group was formed to investigate the need for In-Service Rules andGuidelines for Pressure Vessels for Human Occupancy. Simultaneously, a Sub Task Group wasformed to investigate the issue
18、 of acrylic window design life versus service life. The design lifeis based on the PVHO window being exposed to the maximum allowable working pressure(MAWP), at the maximum rated temperature, for the maximum number of (design) cycles, inan outdoor weathering environment. The majority of PVHOs are no
19、t operated to such extremes,and service life may indeed be longer than design life. Conversely, if a window is not properlycared for (i.e., becomes exposed, either operationally or nonoperationally, to other detrimentalfactors that are not, and cannot be, factored into the design life), then the act
20、ual service life couldbe much shorter than the design life. Thus, the recommendation was made that design life andservice life be addressed as two different subjects. In 1999 the In-Service Task Group became aPVHO subcommittee, with the most immediate task being the establishment of in-service crite
21、riafor PVHO windows and viewports.This Standard provides the necessary in-service criteria to supplement Section 2, Viewports,of ASME PVHO-1, which applies to new construction only. By comparison, this Standard appliesto all PVHO-1 acrylic windows, regardless of their date of manufacture. This Stand
22、ard consistsof both Technical Criteria and Guidelines. They are intended to provide guidance to the Userand/or the Jurisdictional Authority in regard to the establishment of potential Service Life, andthe necessary care, inspection, and repair during that Service Lifedepending on the actualservice c
23、onditions to which the PVHO and windows have been, or will be, exposed.Finally, this Standard was prepared as a “stand-alone” document. All Forms additional tothose normally supplied with the window in accordance with PVHO-1, which may be necessarythroughout the service life of the window, are provi
24、ded herein. Similarly, all necessary PVHO-1technical data applicable to service and repair (if required) are also provided in this Standard.The 2016 Edition of PVHO-2 includes revisions to the in-service pressure testing and tempera-ture abuse factors requirements. It also includes an updated defini
25、tion for “refurbishment” aswell as two new Nonmandatory Appendices covering operation of submersible craft and checklistsand logs intended for operation of PVHOs.Previous editions of this Standard were issued in 2003 and 2012. The 2016 Edition of thisStandard was approved by the American National St
26、andards Institute as an American NationalStandard on January 6, 2016.ivASME PRESSURE VESSELS FORHUMAN OCCUPANCY COMMITTEE(The following is the roster of the Committee as of July 24, 2015.)STANDARDS COMMITTEE OFFICERSG. K. Wolfe, ChairJ. Witney, Vice ChairG. E. Moino, SecretarySTANDARDS COMMITTEE PER
27、SONNELM. W. Allen, Microbaric Oxygen Systems LLCJ. E. Crouch, Southwest Research InstituteW. F. Crowley, Jr., Aerospace and UnderseaW. Davison, Oxyheal Health GroupB. Faircloth, FMS Engineering LLCE. G. Fink, Fink Engineering, Ltd.M. A. Frey, Naval Sea Systems CommandT. R. Galloway, Naval Sea System
28、s CommandG. P. Jacob, Navy Experimental Diving UnitC. B. Kemper III, Kemper Engineering LLCW. Kohnen, Hydrospace Group LLCJ. D. Lawrence, U.S. Coast GuardP. A. Lewis, Hyperbaric Technologies, Inc.J. R. Maison, Adaptive Computer Technology, Inc.T. T. Marohl, ConsultantG. E. Moino, The American Societ
29、y of Mechanical EngineersHONORARY MEMBERSR. J. DzikowskiF. T. GormanSUBCOMMITTEE ON DESIGN AND PIPINGT. C. Schmidt, Chair, Lockheed MartinG. Richards, Vice Chair, Blanson, Ltd.M. W. Allen, Microbaric Oxygen Systems LLCF. Burman, DAN Southern AfricaW. F. Crowley, Jr., Aerospace and UnderseaW. Davison
30、, Oxyheal Health GroupR. K. Dixit, Reimers Systems, Inc.B. Faircloth, FMS Engineering LLCP. Fo r te , Woods Hole Oceanographic InstitutionM. A. Frey, Naval Sea Systems CommandT. R. Galloway, Naval Sea Systems CommandR. M. Webb, Alternate, Naval Sea Systems CommandC. Gaumond, Medical Groupe GaumondB.
31、 Humberstone, Global Diving and SalvagevH. Pauli, DNV GLJ. P. Hierholzer, Alternate, DNV GLS. D. Reimers, Reimers Systems, Inc.G. Richards, Blanson, Ltd.T. C. Schmidt, Lockheed MartinJ. S. Selby, S.O.S. Medical Group, Ltd.P. Selby, Alternate, S.O.S. Medical Group, Ltd.J. C. Sheffield, International
32、ATMO, Inc.K. A. Smith, U.S. Coast GuardR. C. Smith, Naval Facilities Engineering Command, OceanFacilities ProgramD. Talati, Sechrist Industries, Inc.R. Thomas, American Bureau of Shipping (ABS)M. R. Walters, Oceaneering International, Inc.J. Witney, Atlantis Submarines InternationalG. K. Wolfe, Sout
33、hwest Research InstituteL. G. MaloneR. P. SwansonG. P. Jacob, Navy Experimental Diving UnitC. B. Kemper III, Kemper Engineering Services LLCK. A. Wohlfeil, Alternate, Kemper Engineering Services LLCR. Kumar, Reimers Systems, Inc.P. A. Lewis, Hyperbaric Technologies, Inc.S. D. Reimers, Reimers System
34、s, Inc.D. A. Renear, Aqua-Air Industries, Inc.C. D. Johnstone, Alternate, Blanson, Ltd.J. S. Selby, S.O.S. Medical Group, Ltd.P. Selby, Alternate, S.O.S. Medical Group, Ltd.R. Thomas, American Bureau of Shipping (ABS)M. R. Walters, Oceaneering International, Inc.J. Witney, Atlantis Submarines Intern
35、ationalSUBCOMMITTEE ON DIVING SYSTEMST. R. Galloway, Chair, Naval Sea Systems CommandM. R. Walters, Vice Chair, Oceaneering International, Inc.M. W. Allen, Microbaric Oxygen Systems LLCW. F. Crowley, Jr., Aerospace and UnderseaW. Davison, Oxyheal Health GroupB. Faircloth, FMS Engineering LLCE. G. Fi
36、nk, Fink Engineering, Ltd.B. Humberstone, Global Diving and SalvageC. B. Kemper III, Kemper Engineering Services LLCK. A. Wohlfeil, Alternate, Kemper Engineering Services LLCSUBCOMMITTEE ON GENERAL REQUIREMENTSM. A. Frey, Chair, Naval Sea Systems CommandM. W. Allen, Vice Chair, Microbaric Oxygen Sys
37、tems LLCJ. E. Crouch, Southwest Research InstituteT. R. Galloway, Naval Sea Systems CommandR. M. Webb, Alternate, Naval Sea Systems CommandSUBCOMMITTEE ON MEDICAL HYPERBARIC SYSTEMSM. W. Allen, Chair, Microbaric Oxygen Systems LLCW. Davison, Vice Chair, Oxyheal Health GroupT. Dingman, HealogicsK. W.
38、 Evans, Perry BaromedicalE. G. Fink, Fink Engineering, Ltd.C. Foreman, U.S. Food and Drug AdministrationW. T. Gurnee, Oxyheal Health GroupSUBCOMMITTEE ON POST CONSTRUCTIONR. C. Smith, Chair, Naval Facilities Engineering Service CenterW. Davison, Vice Chair, Oxyheal Health GroupM. W. Allen, Microbari
39、c Oxygen Systems LLCJ. E. Crouch, Southwest Research InstituteW. F. Crowley, Jr., Aerospace and UnderseaT. Dingman, HealogicsM. A. Frey, Naval Sea Systems CommandT. R. Galloway, Naval Sea Systems CommandR. M. Webb, Alternate, Naval Sea Systems CommandB. Humberstone, Global Diving and SalvageSUBCOMMI
40、TTEE ON VIEWPORTSJ. Witney, Chair, Atlantis Submarines InternationalG. Richards, Vice Chair, Blanson, Ltd.M. W. Allen, Microbaric Oxygen Systems LLCP. Everley, Delegate, Stanley Plastics, Ltd.B. Faircloth, FMS Engineering LLCC. B. Kemper III, Kemper Engineering Services LLCK. A. Wohlfeil, Alternate,
41、 Kemper Engineering Services LLCW. Kohnen, Hydrospace Group LLCviJ. D. Lawrence, U.S. Coast GuardT. Gilman, Alternate, U.S. Coast GuardP. A. Lewis, Hyperbaric Technologies, Inc.T. T. Marohl, ConsultantH. Pauli, DNV GLD. A. Renear, Aqua-Air Industries, Inc.J. S. Selby, S.O.S. Medical Group, Ltd.P. Se
42、lby, Alternate, S.O.S. Medical Group, Ltd.K. A. Smith, U.S. Coast GuardR. Thomas, American Bureau of Shipping (ABS)G. P. Jacob, Navy Experimental Diving UnitS. D. Reimers, Reimers Systems, Inc.J. S. Selby, S.O.S. Medical Group, Ltd.P. Selby, Alternate, S.O.S. Medical Group, Ltd.G. K. Wolfe, Southwes
43、t Research InstituteC. B. Kemper III, Kemper Engineering Services LLCK. A. Wohlfeil, Alternate, Kemper Engineering Services LLCP. A. Lewis, Hyperbaric Technologies, Inc.H. Pauli, DNV GLS. D. Reimers, Reimers Systems, Inc.J. C. Sheffield, International ATMO, Inc.D. Talati, Sechrist Industries, Inc.G.
44、 P. Jacob, Navy Experimental Diving UnitC. B. Kemper III, Kemper Engineering Services LLCK. A. Wohlfeil, Alternate, Kemper Engineering Services LLCJ. D. Lawrence, U.S. Coast GuardT. Gilman, Alternate, U.S. Coast GuardG. Richards, Blanson, Ltd.T. C. Schmidt, Lockheed MartinJ. C. Sheffield, Internatio
45、nal ATMO, Inc.D. Talati, Sechrist Industries, Inc.J. Witney, Atlantis Submarines InternationalJ. D. Lawrence, U.S. Coast GuardT. Gilman, Alternate, U.S. Coast GuardD. A. Renear, Aqua-Air Industries, Inc.T. C. Schmidt, Lockheed MartinR. C. Smith, Naval Facilities Engineering Service CenterJ. Stromer,
46、 Triton SubmarinesD. Talati, Sechrist Industries, Inc.R. Thomas, American Bureau of Shipping (ABS)SUBCOMMITTEE ON SUBMERSIBLESW. Kohnen, Chair, Hydrospace Group LLCW. F. Crowley, Jr., Aerospace and UnderseaT. R. Galloway, Naval Sea Systems CommandR. M. Webb, Alternate, Naval Sea Systems CommandH. Pa
47、uli, DNV GLviiT. C. Schmidt, Lockheed MartinK. A. Smith, U.S. Coast GuardJ. D. Lawrence, Alternate, U.S. Coast GuardR. Thomas, American Bureau of Shipping (ABS)J. Witney, Atlantis Submarines InternationalCORRESPONDENCE WITH THE PVHO COMMITTEEGeneral. ASME Standards are developed and maintained with
48、the intent to represent theconsensus of concerned interests. As such, users of this Standard may interact with the Committeeby requesting interpretations, proposing revisions or a Case, and attending Committee meetings.Correspondence should be addressed to:Secretary, PVHO Standards CommitteeThe Amer
49、ican Society of Mechanical EngineersTwo Park AvenueNew York, NY 10016-5990http:/go.asme.org/InquiryProposing Revisions. Revisions are made periodically to the Standard to incorporate changesthat appear necessary or desirable, as demonstrated by the experience gained from the applicationof the Standard. Approved revisions will be published periodically.The Committee welcomes proposals for revisions to this Standard. Such proposals should beas specific as possible, citing the paragraph number(s), the proposed wording, and a detaileddescription of the reasons for the proposal, inc
