Langley LPR 1710.40 N-1 Procedural Requirements Subject .

August 27, 2019LPR 1710.40 N-1ExclusionExcluded itemNo.Condition(s) for exclusionX-15COTS prepackaged hydraulic systems.None.X-16COTS welding equipment.None.COTS laboratory equipment.Fluid delivery system shallhave suitable overpressureprotection.X-17X-18X-19X-20Volumes not greater than 100cubic feet.Vacuum vessels.Not connected to a positivepressure fluid delivery system.Nominal diameter of less than6 inches.Vacuum piping.Not connected to a positivepressure fluid delivery system.Contractor-owned pressure systems.Used on a temporary basis forthe purpose of constructionactivities.The owning Contractor shallmeet all applicable Federaland State safety regulations.Subjected to hydrostaticpressure only.X-21Atmospheric storage tanks.Complies with applicableAmerican Petroleum Institute(API) or UnderwritersLaboratories (UL) standards.Page 9 of 67Verify the correct version before use by checking the LMS Web site.

August 27, 2019LPR 1710.40 N-1ExclusionExcluded itemNo.Condition(s) for exclusionCOTS self-contained pressurized eyewash systemsOverpressure protectiondevices, if present, areperiodically tested or replacedin accordance withmanufacturers’recommendations.X-23Tube trailers.Periodically retested andrequalified in accordance with49 CFR 180, provided that theowner’s OSHA inspectionrequirements of 29 CFR1910.101 are met.X-24Natural gas distribution systems.Design pressure not exceeding15 psig.Pressurized test articles or test articlescontaining pressurized components.Excluded if they have beenreviewed and accepted by aformal safety review committee(see LAPD 1150.2) or by aformal Operational ReadinessReview (ORR) board (seeLAPD 7000.2).X-22X-25Page 10 of 67Verify the correct version before use by checking the LMS Web site.

August 27, 2019LPR 1710.40 N-1ExclusionExcluded itemNo.X-26Condition(s) for exclusionTemporary, test-specific pressuresystems.Excluded if risk assessment inaccordance with LPR 1740.4shows there is no risk topersonnel, and anyunmitigated risk to the facilityhas been accepted by theOrganizational Director.Pressurized systems andcomponents are notconsidered to fall into thiscategory if they are usedrepeatedly for testing differenttest articles or configurations.Note: For additional guidance on lockout/tagout procedures for pressure vesselslisted in Table 1-A, see LPR 1710.10.Page 11 of 67Verify the correct version before use by checking the LMS Web site.

August 27, 2019LPR 1710.40 N-12. GENERAL REQUIREMENTSRequired Codes and StandardsPressure systems and components owned by or used at LaRC shall bedesigned, fabricated, modified, repaired, and/or recertified, as a minimum, inaccordance with the following codes and standards as applicable:a.American Institute of Aeronautics and Astronautics (AIAA)(1)S-080, Space Systems – Metallic Pressure Vessels, Pressurized Structures,and Pressure Components(2)S-081, Space Systems – Composite Overwrapped Pressure Vesselsb.American Society of Mechanical Engineers (ASME)(1)Boiler and Pressure Vessel Code(2)B31.1, Power PipingNote: for steam and condensate piping(3)B31.3, Process PipingNote: for all piping other than steam and condensate(4)c.B31.5, Refrigeration Piping and Heat Transfer ComponentsFM Global, Factory Mutual (FM) Data SheetsNote: Applicable pressure equipment codes and standards in FM data sheetseries 12.d.International Code Council (ICC), International Mechanical Codee.Langley Research Center(1)LPR 1710.41, Langley Research Center Standard for the Evaluation of Socketand Branch Connection Welds(2)LPR 1710.42, Safety Program for the Recertification and Maintenance ofGround-Based Pressure Vessels and Piping Systems (PVS)(3)LPR 1710.15, Wind-Tunnel Model Systems Criteria(4)LPR 1710.11, Fire Protection Program(5)LPR 1740.4, Facility System Safety Analysis(6)LPR 7123.2 Facility Configuration Managementf.NASA STD 8719.17, NASA Requirements for Ground-Based Pressure Vesselsand Pressurized Systems (PVS)g.National Board of Boiler and Pressure Vessel Inspectors (NBBI), NB-23, NationalBoard Inspection Codeh.National Fire Protection Association (NFPA)(1)NFPA 30, Flammable and Combustible Liquids CodePage 12 of 67Verify the correct version before use by checking the LMS Web site.

August 27, 2019LPR 1710.40 N-1(2)NFPA 54, National Fuel Gas Code(3)NFPA 58, Liquefied Petroleum Gas CodePage 13 of 67Verify the correct version before use by checking the LMS Web site.

August 27, 2019LPR 1710.40 N-13. APPROVALSRequired ApprovalsAll new designs, procurements, fabrications, modifications, and repairs topressure systems and system components shall be approved by the followingpersonnel:a.The SPE for Pressure Systems or the SPE for Flight Systems, to ensurecompliance with the required codes and standards.b.The Facility Coordinator (FC), to ensure coordination with all activities in thefacility where the pressure system is located.c.The Facility Safety Head (FSH), to ensure compliance with specific safetyrequirements of the facility where the pressure system is located.Additionally, the following signatures may be required, depending on the scope ofthe required work:a.The Authority Having Jurisdiction (AHJ), to ensure compliance with requiredcodes and regulations for pressure systems containing flammable or combustibleliquids, flammable gases, cryogenic liquids, oxidizers, pyrophoric substances,highly reactive substances, or toxic substances.b.The cognizant Safety and Facility Assurance Branch (SFAB) Safety Engineer, toensure compliance with all applicable facility safety requirements.c.The SPE for Welding, for pressure systems containing welded or brazedcomponents, to ensure compliance with welding process quality assurancerequirements, procedures, and codes.Approval by the above listed personnel shall be verified by their signature anddate on the design drawings, sketches, procurement requisition records, or work orderfunctional approvals, as applicable.Page 14 of 67Verify the correct version before use by checking the LMS Web site.

August 27, 2019LPR 1710.40 N-14. WAIVERS AND INTERPRETATIONSWaiversApproval for a waiver from the requirements in this LPR shall be obtained byfollowing the process described in LMS-CP-7151, “Obtaining Waivers for LMSRequirements,” and as further described herein:a.In the “Recommending Authorities” section of LF 51, the “OtherRecommendation Authority” is the chairperson of the Pressure SystemsCommittee and the “Engineering Technical Authority” is the applicable SPE.b.All requests for waivers from the requirements in this LPR, includingrequirements in any referenced Agency standards, national consensus codes, orindustry standards, shall include full justification for the waiver request andsupporting data or analyses to demonstrate that safe operation can be achieved.InterpretationsThe SPE for Pressure Systems, the SPE for Flight Systems, the SPE forWelding, and the AHJ are granted authority to issue interpretations on the applicabilityof individual requirements in this LPR within their respective areas of expertise.Page 15 of 67Verify the correct version before use by checking the LMS Web site.

August 27, 2019LPR 1710.40 N-15. DESIGN OF NEW PRESSURE SYSTEMS (GROUND-BASED)GeneralAll new pressure systems shall be designed in compliance with the applicablecodes and standards listed in Chapter 2 of this LPR.The Cognizant Engineer shall ensure that all new pressure system designsinclude the following documentation, as applicable for each project:a.Requirements Document(1)Formal Requirements Document per LMS-BP-5688(2)Statement of Work/Work Planb.(1)Engineering analyses and calculationsASME piping code calculations, such as:(a)Pressure and temperature design calculations(b)Flexibility analysis(c)Relief valve and/or rupture disc sizing calculations(d)Vent line and vent header backpressure calculations(2)ASME BPV code pressure vessel calculations, such as:(a)Pressure and temperature design calculations for shells, heads, nozzles,and closures(b)Nozzle load limitations(c)Reinforcement of openings(d)Relief valve and/or rupture disc sizing calculations(e)Fatigue life for pressure vessels operating with cyclic pressure and/ortemperature(3)Flow sizing calculations for valves, control orifices, flow meters, and pipingcomponents(4)For custom-made components and for code-unlisted components, calculationsusing closed-form equations, finite element methods, or other generallyaccepted engineering analysis methods to establish structural integrity andcompliance with the required safety factorsc.Catalog cuts of commercial-off-the-shelf itemsd.Engineering drawings (D-size format is preferred), sketches, and/or marked-upphotographs(1)Process and instrumentation diagrams (P&ID)(2)Plan views, elevation views, section views, and detail views as needed todescribe the required scope of workPage 16 of 67Verify the correct version before use by checking the LMS Web site.

August 27, 2019LPR 1710.40 N-1e.Parts lists and material specification tablesf.LF 461, Environmental Project Planning Formg.Facility Change Request (FCR)Design drawing packages and sketches shall include the following information:a.Name of the Cognizant Engineerb.Datec.Facility named.Building numbere.Drawing or sketch titlef.Drawing or sketch numberg.Applicable design code(s) and/or standard(s)h.Relevant engineering data, such as fluid service, design pressure, designtemperature, material specification, non-destructive examination and inspectionrequirements, testing requirements, set pressure of relief devices, set points of allinterlocks and protection devices, torque values of bolted connections, andrequirements for welding and/or brazing.Page 17 of 67Verify the correct version before use by checking the LMS Web site.

August 27, 2019LPR 1710.40 N-16. FABRICATION OF NEW PRESSURE SYSTEMS (GROUND-BASED)GeneralNew pressure systems shall be fabricated in accordance with an approveddesign as per Chapters 3 and 5 of this LPR.The Cognizant Engineer shall supervise the progress of pressure systemfabrication to ensure compliance with this LPR.Pressure VesselsPressure vessels shall be stamped by the fabricator in accordance with theASME Pressure Vessel Code, Section VIII, Divisions 1 or 2.The fabricator shall provide a copy of the vessel’s code stamp documentation toNASA.Piping Systems, Welded or BrazedWelded or brazed piping systems shall be fabricated by organizations that areholders of an ASME (or National Board) Certificate of Authorization for the application ofa code stamp, such as the “U”, “U2”, “N”, “R”, or “PP” stamps. The Certificate ofAuthorization ensures that the fabricator is familiar with and uses the quality controlmeasures required by the ASME codes for pressure vessels and piping.Whenever a pressure system is fabricated by welding or brazing, the fabricatorshall submit the following documents for approval by the SPE for Welding or his/herdesignated representative prior to the start of any welding:a.Welding or Brazing Procedure Specification (WPS/BPS)b.Certified Procedure Qualification Records (PQR)c.Certified Welder or Brazer Performance Qualifications (WPQ/BPQ)All components installed in piping systems shall be permanently marked withlegible raised lettering or stamping in order that required information (i.e., themanufacturer, pound class, model or part number, size, pressure rating, temperaturerating, material of construction, and code of construction, as applicable) can beascertained. Component markings can be limited to the manufacturer’s name ortrademark and the manufacturer’s part number or model number if all other pertinentinformation as outlined above can be ascertained through the manufacturer’s catalogsor data sheets.Piping Systems, Non-Welded or Non-BrazedNon-welded or non-brazed piping and tubing systems shall be fabricated bypersons that have received training in the specific fabrication methods utilized, who candemonstrate they understand proper material selection and the identification,installation, fit-up, alignment, and support of components to be used in suchfabrications.Page 18 of 67Verify the correct version before use by checking the LMS Web site.

August 27, 2019LPR 1710.40 N-17. MODIFICATIONS AND REPAIRS TO PRESSURE SYSTEMS (GROUND-BASED)GeneralPressure systems shall be modified or repaired in accordance with an approveddesign as defined in Chapters 3 and 5 of this LPR.The Cognizant Engineer shall supervise the progress of pressure systemmodifications and repairs to ensure compliance with this LPR.Pressure VesselsModifications and repairs to code-stamped pressure vessels shall be performedby organizations that are holders of a National Board Certificate of Authorization for useof an “R” stamp.Modifications and repairs to non-code-stamped pressure vessels shall beperformed by organizations that are holders of a National Board Certificate ofAuthorization for use of a “U”, “U2”, “R”, “N”, or “PP” stamp.Piping Systems (Welded or Brazed)Modifications and repairs to welded or brazed piping systems shall be performedby organizations that are holders of one of the following ASME or National Boardstamps: “U”, “U2”, “R”, “N”, or “PP”.Whenever a piping system is modified or repaired by welding or brazing, thefabricator shall submit the following documents for approval by the SPE for Welding orhis/her designated representative prior to the start of any welding:a.Welding or Brazing Procedure Specification (WPS/BPS)b.Certified Procedure Qualification Records (PQR)c.Certified Welder or Brazer Performance Qualifications (WPQ/BPQ)Piping Systems (Non-Welded or Non-Brazed)Modifications and repairs to non-welded or non-brazed piping and tubingsystems shall be performed by persons who have received training in the specificfabrication methods utilized, who can demonstrate they understand proper materialselection, and the identification, installation, fit-up, alignment, and support ofcomponents to be used in such fabrications.Page 19 of 67Verify the correct version before use by checking the LMS Web site.

August 27, 2019LPR 1710.40 N-18. PROCUREMENT OF PRESSURE SYSTEMS (GROUND-BASED)GeneralProcurements of pressure systems or of pressure system components shall bereviewed and approved as required in Chapter 3 of this LPR.The requiring organization/customer is responsible for ensuring that the allrequired approvals outlined in Chapter 3 are complete, and shall coordinate with theapprovers in Chapter 3 and the Office of Procurement to ensure the requirements underChapter 8 are fulfilled and included in solicitation and resultant contractual documents.Procurement of Pressure Vessels and TanksAll procurements for COTS pressure vessels and tanks for use at LaRC shallrequire the vessels to be code stamped by a recognized U.S. national standardsorganization such as ASME, API, DOT, or UL, as applicable.All contracts or purchase orders for the acquisition of new, custom-built pressurevessels shall:a.Require the vessels to be ASME code stampedb.Contain the following wording:“This solicitation includes fabrication of pressure vessels. A current ASMECertificate of Authorization for use of a “U” or “U2” code stamp shall be held bythe organization performing the fabrication and stamping of the pressure vessels.The contract award process will be expedited by submittal of the Certificate ofAuthorization with the offeror's bid; however, early certification submittal is notrequired to ensure bid responsiveness. An offeror’s ability to confirm thatdeliverable pressure vessels will be code stamped as required is a matterrelating to the offeror’s responsibility and will be determined prior to award.”All contracts or purchase orders for the acquisition of new, custom-built tanksshall require API or UL code stamping.An approved waiver as described in Chapter 4 shall be obtained prior toprocurement of non-code-stamped pressure vessels and tanks that are within the scopeof this LPR.The Cognizant Engineer shall require all Vendors supplying pressure vesselsand tanks to furnish the following documents, as applicable:a.Outline and Cross Sectional Drawings,b.Bill of Materials,c.ASME Code Calculations,d.Welding Procedures (WPS),e.Procedure Qualification Records (PQR),f.Weld Maps,g.Non-Destructive Examination (NDE) Records,Page 20 of 67Verify the correct version before use by checking the LMS Web site.

August 27, 2019LPR 1710.40 N-1h.Heat Treatment Records,i.Hydrostatic Test Records,j.Code Reports (ASME Code Forms, Manufacturer’s Data Reports, NameplateRubbing or Facsimile),k.Charts (Hydrostatic Test, Post Weld Heat Treatment (PWHT)), andl.Reports (Mill Test Report (MTR), Positive Material Identification (PMI), Nondestructive examination (NDE), Radiography, Hardness Test, Safety Data Sheet(SDS)).Procurement of Piping Systems (Welded or Brazed)All contracts requiring fabrication, modification, or repair of ground-based, weldedor brazed piping systems shall:a.Require the fabricator to be a holder of an ASME code stampb.Contain the following wording:“This solicitation requires fabrication, modification, and/or repairs topressure systems. A current National Board or ASME Certificate ofAuthorization for use of any of the fo

National Board of Boiler and Pressure Vessel Inspectors (NBBI), NB -23, National Board Inspection Code. ss. National Fire Protection Association (NFPA) 30, Flammable and Combustible . LPR 1710.40 L, Langley Research Center Pressure Systems Handbook, dated April 26, 2017. /s/ C