API SIFE study materials
API SIFE study resources

API SIFE cheat sheet

API SIFE · Keep the key ideas within reach.

Quick reference

Source Inspection Fundamentals, Roles, and Quality Surveillance Planning

  • Source inspection verifies at the vendor's fabrication site that materials, workmanship, testing, and documentation conform to the purchase order, approved drawings, and applicable code before shipment.

  • A Quality Surveillance Plan identifies inspection activities, acceptance criteria, responsible parties, document reviews, and hold or witness points for the equipment scope.

  • A hold point is an inspection stage where work cannot proceed until the inspector or authorized representative completes the required verification and records acceptance.

  • A witness point requires notification before the activity; work may proceed if the inspector does not attend, unless the contract or inspection plan states otherwise.

  • The inspector's role includes document review, material verification, dimensional checks, witnessing tests, nonconformance follow-up, and release recommendation; the vendor remains responsible for product conformity.

  • Surveillance intensity is selected from equipment criticality, fabrication complexity, vendor performance history, and contractual or code requirements.

  • A nonconformance report records the requirement violated, location, objective evidence, disposition, corrective action, and verification of closure.

  • The pre-inspection meeting confirms the inspection and test plan, notification rules, site access, calibration records, document formats, and communication responsibilities.

  • Release authorization is issued only after required hold points are cleared, nonconformances are closed, and final documentation is reviewed and accepted.

Quick reference

Materials, Welding, and Fabrication Processes

  • ASME Section II contains material specifications, while ASME Section IX contains welding, brazing, and qualification requirements.

  • A Welding Procedure Specification is qualified by a Procedure Qualification Record; welders and welding operators are separately qualified by performance tests.

  • P-numbers group base metals by welding characteristics, F-numbers group electrodes and filler metals, and A-numbers group weld metal chemical analysis.

  • Preheat and interpass temperature control slow cooling and reduce hydrogen cracking risk; post-weld heat treatment reduces residual stress and may be required by material or thickness.

  • Material traceability links heat numbers, mill test reports, and component markings; positive material identification verifies alloy chemistry when specified.

  • Welding consumables require manufacturer-recommended storage and control; low-hydrogen electrodes typically require holding ovens after opening.

  • Fit-up checks before welding include joint geometry, bevel angle, root gap, alignment, cleanliness, and dimensional tolerances.

  • Repair welds require an approved welding procedure and normally re-examination by the same non-destructive method that detected the original discontinuity.

  • Fabrication dimensional checks include shell roundness, plumbness, nozzle orientation, elevation, projection, and angularity against approved drawings.

Quick reference

Non-Destructive Examination and Pressure Testing

  • Common NDE methods are visual, penetrant, magnetic particle, radiographic, and ultrasonic testing; method selection depends on material, geometry, discontinuity type, and code requirements.

  • Penetrant testing detects surface-breaking discontinuities in nonporous materials; magnetic particle testing detects surface and near-surface discontinuities in ferromagnetic materials.

  • Radiographic testing uses radiation attenuation to reveal volumetric internal discontinuities; ultrasonic testing uses high-frequency sound and is sensitive to reflector orientation and surface condition.

  • NDE personnel certification may follow ASNT SNT-TC-1A, CP-189, or an employer program, as required by the contract and governing code.

  • Acceptance criteria come from the applicable code or specification; the NDE method alone does not establish accept or reject limits.

  • ASME Section VIII Division 1 hydrostatic test pressure is 1.3 times MAWP times the lowest stress ratio at test temperature to allowable stress at design temperature.

  • ASME B31.3 piping hydrostatic test pressure is at least 1.5 times design pressure, with code allowances for temperature and stress ratios.

  • Pneumatic testing stores more energy than hydrostatic testing and requires code-specified precautions, exclusion zones, and approval of the test procedure.

  • Test gauges must be calibrated, have suitable range and resolution, and be located so they accurately indicate the pressure at the equipment being tested.

Quick reference

Fixed Equipment: Pressure Vessels, Heat Exchangers, Piping, Valves, and Fittings

  • A pressure vessel nameplate and Manufacturer's Data Report identify the code stamp, MAWP, design temperature, material, and minimum design metal temperature.

  • Heat exchanger inspection covers shell, tubes, tubesheet, baffles, heads, and tube-to-tubesheet joints; TEMA class defines mechanical and dimensional requirements.

  • Piping inspection checks line class, material, dimensions, flange rating, gasket, bolting, supports, and orientation against approved isometrics and specifications.

  • Valve shell testing verifies the pressure boundary; seat testing verifies closure tightness, with acceptance limits set by the applicable valve standard and valve type.

  • Flange faces, gasket surfaces, and bolting require protection and correct finish; mismatched pressure ratings or facing types are nonconforming.

  • Fittings and flanges require marking for size, pressure class, material, and manufacturer, with traceability to material certificates.

  • Spring hangers, expansion joints, and pipe supports require setting or installation according to drawings and manufacturer instructions.

  • Nozzle orientation, elevation, projection, and shell dimensions are dimensional hold points before final assembly and shipment.

  • Internal cleanliness, draining, drying, and preservation are verified before closing and shipment release.

Quick reference

Codes, Standards, Documentation, and Release of Equipment

  • The contract fixes the applicable code edition and addenda; a later edition or alternative requirement is not used without documented approval.

  • Approved drawings, specifications, and the purchase order form the acceptance basis, and revision control ensures only current documents are used.

  • Document review verifies material test reports, NDE reports, heat treatment charts, pressure test records, and dimensional records for completeness and code compliance.

  • The Manufacturer's Data Report must match the nameplate, actual configuration, material records, and test results before code stamping and release.

  • Code stamping is authorized only within the scope of the certificate holder's quality program and the applicable code scope.

  • Nonconformance and deviation records must be dispositioned, repaired or accepted as applicable, re-inspected, and closed before release.

  • The final release package typically includes material certificates, drawings, NDE reports, heat treatment records, test reports, coating records, and packing lists.

  • Shipping release confirms equipment identification, preservation, packing, and transmittal of the final documentation set.

  • Obsolete or superseded documents are removed from use so that fabrication and inspection rely only on approved current revisions.