Calibration Of Inspection And Maintenance Precision .

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APTA STANDARDS DEVELOPMENT PROGRAMSTANDARDAmerican Public Transportation Association1300 I Street NW, Suite 1200Washington, DC, 20005APTA RT-VIM-S-017-03 Rev 2First Published September 28, 2003First Revision November 2, 2006 (Reaffirmed)Second Revision January 6, 2015 (Reaffirmed)Rail Transit Standards Vehicle Inspection andMaintenance Working GroupCalibration of Inspection andMaintenance Precision MeasuringDevices and ToolsAbstract: This Standard covers basic procedures for calibration of inspection and maintenance precisionmeasuring devices and tools.Keywords: calibration, precision measuring device, toolsSummary: This document establishes a standard for the calibration of precision measuring devices and toolsused by vehicle maintenance departments within a rail transit system. Rail transit systems shall tailor thisstandard to accommodate their specific equipment and mode of operation.Scope and purpose: This standard, in combination with the ISO standard referenced, includes all essentialperiodic inspection and maintenance requirements for the calibration of precision measuring devices and toolsused to inspect and maintain rail vehicles. This procedure covers all types of electronic test equipment,mechanical tools and measuring devices used to generate quantitative measurements and/or data. Calibrationand certification is based on standards set by the National Institute of Science and Technology, originalequipment manufacturers’ recommended calibration cycles, and a transit agency’s specifications. Thisstandard is intended for use by the vehicle maintenance department within a rail transit system. It establishesprocedures for the periodic calibration of inspection and maintenance of precision measuring devices andtools to ensure the accuracy of measurements obtained by these devices.This document represents a common viewpoint of those parties concerned with its provisions, namely operating/planning agencies, manufacturers, consultants, engineers and general interest groups. The application of anystandards, recommended practices or guidelines contained herein is voluntary. In some cases, federal and/or stateregulations govern portions of a transit system’s operations. In those cases, the government regulations takeprecedence over this standard. The North American Transit Services Association (NATSA) and its parent organizationAPTA recognize that for certain applications, the standards or practices, as implemented by individual agencies, maybe either more or less restrictive than those given in this document. 2016 NATSA and its parent organization. No part of this publication may be reproduced in any form, in an electronic retrievalsystem or otherwise, without the prior written permission of NATSA.

ContentsIntroduction . iiiNote on alternate practices . iiiParticipantsThe American Public TransportationAssociation greatly appreciates thecontributions of the Rail TransitStandards Vehicle Inspection andMaintenance Committee, whichprovided the primary effort in thedrafting of this Standard.At the time this standard wascompleted, the working groupincluded the following members:Ken Morford, ChairScott Laps, Vice ChairMarwan Al-MuktarJuan AristizabalDave BarberChris BarbourDamian BarnhartSherif BastawrosSteve BethelJerry BlackmanStephen BoninaJohn CondraskyRichard CurtisHenry DavisPaul DenisonJeff DunhamPhil EberlMarc GagneMike GhobrialDan GornsteinJohn GreenScott GroganTerry HeildebrandtBen HollandAnthony JonesJohn KesichRick KindingHenry KolesarJohn Kortekaas1. Frequency of conduct . 11.1 Calibration intervals. 11.2 Audit intervals . 22. Requirements and specific tasks . 22.1 Safety/personal protective equipment . 22.2 Training requirements . 22.3 Calibration of precision measuring devices . 22.4 Calibration documentation. 42.5 Correction of deficiencies . 4VaRelated APTA Standards .5cant,Vacant, SecretaryPaul KovacsSecDavid KowalskiReferences .5reJoseph KrempaskytaryBrian LeyDefinitions . 5John McEwenLarry NyeAbbreviations and acronyms . 5Frank PearsonJohn SadorraRichard SeatonAnnex A (informative): Sample calibration database . 7Jay ShahMelissa ShurlandGeorge ShafferJames SkaggsBill SteinmetzNarayana SundaramMichele SwayzerTom TarantinoClive ThornesWilson WallaceMichael WetherellEvalynn WilliamsCliff WoodburyHannie WoodsonBob YoungProject consultantGordon S. Campbell,Interfleet Technology, Inc.Project teamCharles JosephAmerican Public Transportation Association 2016 American Public Transportation Association ii

IntroductionThis introduction is not a part of APTA RT-VIM-RP-017-03 Second Revision January 6, 2016 Standard forCalibration of Inspection and Maintenance Precision Measuring Devices & Tools.This Standard for the Calibration of Inspection and Maintenance Precision Measuring Devices and Tools forrail transit vehicles represents a common viewpoint of those parties concerned with its provisions, namely,transit operating/planning agencies, manufacturers, consultants, engineers and general interest groups. Theapplication of any standards, practices or guidelines contained herein is voluntary. In some cases, federaland/or state regulations govern portions of a rail transit system’s operations. In those cases, the governmentregulations take precedence over this standard. APTA recognizes that for certain applications, the standards orpractices, as implemented by individual rail transit systems, may be either more or less restrictive than thosegiven in this document.This Standard describes the basic inspection and maintenance requirements for the calibration of rail transitprecision measuring devices and tools. APTA recommends the use of this standard by individuals ororganizations that use measuring devices and tools to make quantitative measurements to demonstratecompliance with a specified requirement.Note on alternate practicesIndividual rail transit systems may modify the practices in this standard to accommodate their specificequipment and mode of operation. APTA recognizes that some rail transit systems may have unique operatingenvironments that make strict compliance with every provision of this standard impossible. As a result,certain rail transit systems may need to implement the standards and practices herein in ways that are more orless restrictive than this document prescribes. A rail transit system may develop alternates to APTA standardsso long as the alternates are based on a safe operating history and are described and documented in thesystem’s safety program plan (or another document that is referenced in the system safety program plan).Documentation of alternate practices shall: identify the specific APTA rail transit safety standard requirements that cannot be met;state why each of these requirements cannot be met;describe the alternate methods used; anddescribe and substantiate how the alternate methods do not compromise safety and provide a level ofsafety equivalent to the practices in the APTA safety standard (operating histories or hazard analysisfindings may be used to substantiate this claim). 2016 American Public Transportation Association iii

APTA RT-VIM-S-017-03 Rev 2Calibration of Inspection and Maintenance Precision Measuring Devices and ToolsCalibration of Inspection and MaintenancePrecision Measuring Devices and Tools1. Frequency of conductThis section provides guidance to the rail transit system (RTS) to develop initial calibration and auditprograms. In implementing this Standard, frequencies for individual tasks shall be established based on anumber of factors, including but not limited to the following: operating environment/conditionsOEM-recommended intervalsperformance requirementshistorical datafailure analysisreliability-centered maintenance programsindustry experiencerail transit system’s testing and experienceNOTE: In the absence of experience, recommendations or history, initial calibration and audit intervalsshall be as specified below.1.1 Calibration intervalsPrecision measuring devices and tools shall be inspected, repaired and calibrated at regular intervals forproper operation and accuracy. A periodic precision measuring device and tool recalibration program shall bedeveloped based upon the measurement equipment’s stability, purpose, usage and environmental conditions.Table 1 establishes the initial calibration interval for equipment that has seen normal operating conditions.TABLE 1Calibration IntervalsDescriptionMaximum Initial Intervals Between CalibrationUnder Normal Operating ConditionsMechanical/pneumatic devices and analog gauges1 yearTransducers1 yearPortable analog instruments1 yearPortable digital instruments2 yearsPortable electrical/electronic devices1 yearElectrical/electronic bench devices2 yearsSpecial toolsAs required by the OEMSpecial gaugesAs required by the OEM 2016 American Public Transportation AssociationPage 1 of 8

APTA RT-VIM-S-017-03 Rev 2Calibration of Inspection and Maintenance Precision Measuring Devices and ToolsNOTE: Normal operating conditions do not include the following: dropping overloading working outside the environmental conditions specified by the OEM working in a severe operating conditionIn the event that the device is suspected of being damaged, then the device shall be recalibrated immediately.In some instances damage is not readily discernable. Severe operating conditions involve a device being usedin an operating environment that involves the potential for the device to lose its calibration due to frequentuse, environmental conditions or rough handling. The RTS should develop a policy on recalibrating precisionmeasuring devices that operate under severe conditions more frequently than the guidelines in Table 1.1.2 Audit intervalsAs part of the Quality Assurance Plan, the RTS shall develop and implement a procedure for auditing thecorrect implementation of the calibration system. Table 2 establishes the initial audit intervals for the devicesand facilities. Each audit should be documented in accordance with the RTS’s procedures.TABLE 2Audit IntervalsPeriodic AuditInitial Intervals Between AuditsMeasuring devices and tools for the presence of required andcurrent calibration labels6 monthsIn-house proof testing processas required by RTS’s Quality AssurancePlanAll calibration facilities and the procedures and personnel whoperform the calibrations2 years2. Requirements and specific tasks2.1 Safety/personal protective equipmentAppropriate personal protective equipment, meeting minimum American National Standards Institute (ANSI)standards and as required by the RTS, shall be worn at all times.Established RTS safety practices, rules and procedures shall be followed at all times in the performance ofthese inspections and tests.2.2 Training requirementsRail transit systems and/or their maintenance contractors shall develop and execute training programs thatprovide employees with the knowledge and skills necessary to safely and effectively perform the tasksoutlined in this standard.2.3 Calibration of precision measuring devicesThe RTS shall develop and implement a calibration procedure that is in compliance with ISO 10012 and thisstandard. The calibration procedure shall require employees to perform self-tests and self-calibration onequipment with built-in self-test and self-calibration routines prior to taking any measurements. 2016 American Public Transportation AssociationPage 2 of 8

APTA RT-VIM-S-017-03 Rev 2Calibration of Inspection and Maintenance Precision Measuring Devices and ToolsMeasuring devices that do not successfully pass the self-test or self-calibration process shall not be used.2.3.1 Precision measuring device and tool listEach RTS shall develop procedures for creating, developing and maintaining a complete and up-to-date“calibration database” of precision measuring devices and tools requiring calibration. The procedure shallinclude a methodology to incorporate newly purchased precision measuring devices and tools to thecalibration database prior to the equipment being used by the RTS. The RTS also shall develop a procedurefor retiring equipment that is damaged beyond economic repair or obsolete. This equipment shall be disposedof to prevent further use by the RTS. A sample calibration database is provided in Annex A.2.3.2 Calibration categoriesThe RTS may develop two calibration categories: “calibration required” and “no calibration required.” TheRTS’s manager of quality assurance or the person identified by the RTS’s Quality Assurance Plan shallapprove the classification of individual devices into a specific calibration category.The RTS shall develop a procedure for changing the designation of devices between the categories“calibration required” and “no calibration required.” Calibration requiredThis designation is for precision measuring devices and tools in regular use by the RTS to generatequantitative measurements or data that are used to demonstrate compliance with specified requirements. Railtransit systems have the option of sending these precision measuring devices to a qualified calibration facilityor may use in-house personnel qualified on specific equipment to perform calibration. No calibration required (NCR)This designation is specifically for any device or tool that does not require an accuracy check, periodicmaintenance or calibration as classified by the RTS’s procedure.Devices or tools with a status of “no calibration required” shall be classified and tracked in the RTS’sdatabase.2.3.3 Calibration recall notificationEach RTS shall develop procedures to issue a recall notification and to verify that all devices and toolsrequiring calibration are recalibrated or removed from service on the expiration of the current calibration.When equipment is returned from calibration and/or repair, the department will document the repairs madeand/or the calibration information in accordance with the RTS’s procedure.2.3.4 Qualified calibration and repair facilitiesAll organizations/departments performing calibrations to precision measuring devices and tools shall becertified to ISO 10012 or ANSI Z540-1. All standards used for calibrating precision measuring devices andtools shall be traceable to the National Institute of Science and Technology (NIST). Calibrations may beperformed either internally or externally to the RTS.After repair, the RTS shall have the precision measuring device or tool re-calibrated. 2016 American Public Transportation AssociationPage 3 of 8

APTA RT-VIM-S-017-03 Rev 2Calibration of Inspection and Maintenance Precision Measuring Devices and Tools2.4 Calibration documentationThe RTS shall develop a procedure for documenting the calibration and repair of its precision measuringdevices and tools. At a minimum, the calibration documentation shall include the following: calibration databasea certificate of calibration for each device that is calibrateddocumentation for the repair and subsequent re-calibration of all equipment identified by this standardcalibration labels2.4.1 Calibration databaseThe RTS shall develop a calibration database that includes the following: device description, supplier, model number, serial number and/or tool identification numberthe date of calibration of the measuring device or toolthe calibration due dateA sample calibration database is provided as a reference in Annex A.2.4.2 Calibration labelsAll precision measuring devices and tools shall have a current tamper-resistant calibration label affixed to thetool in a conspicuous location. If the tool is too small to affix a label to it, the RTS shall determine theappropriate location.Calibration labels must be applied by an authorized individual and have the following minimum information: calibration due dateidentification of organization/department performing calibrationTest equipment that requires no calibration is required to have a label affixed to it with the followinginformation: “NCR” in contrasting letters (see Section affixedserial number of the equipmentidentification of classifying individual or department designated by the RTS.2.4.3 Measuring device and tool identification numberEach measuring device or tool that is classified as “calibration required” shall have a unique identificationnumber permanently affixed or inscribed on the device, independent of the calibration label. The deviceidentification number may be a manufacturer’s serial number or a unique number assigned by the RTS.2.5 Correction of deficienciesAny deficiencies uncovered during these tasks should be corrected and documented in accordance with RTSprocedures and OEM recommendations. 2016 American Public Transportation AssociationPage 4 of 8

APTA RT-VIM-S-017-03 Rev 2Calibration of Inspection and Maintenance Precision Measuring Devices and ToolsRelated APTA StandardsNone at this time.ReferencesThis standard should be used in conjunction with the original equipment manufacturer’s specifications forcalibration of precision measuring devices and tools, RTS procedures for the calibration of precisionmeasuring devices and tools and the following documents: American National Standards Institute, ANSI Z540-1-1994, “Calibration Laboratories and Measuringand Test Equipment – General Requirements,” 1994. International Organization for Standardization, ISO 10012-1:1992, “Quality Assurance Requirementsfor Measuring Equipment – Part 1: Metrological Confirmation System for Measuring Equipment,”1992. detail.htm?csnumber 17943 International Organization for Standardization, ISO 10012-2:1997, “Quality Assurance for MeasuringEquipment – Part 2: Guidelines for Control of Measurement Processes,” 1997. detail.htm?csnumber 17944DefinitionsFor the purposes of this standard, the following terms and definitions apply:precision measuring device: Any mechanical, electrical, electronic or pneumatic instrument that whenutilized properly provides a measurement that is used to demonstrate compliance with specified requirements.proof testing: An abbreviated calibration procedure performed by the RTS that compares a shop measuringdevice and tools to a known calibrated standard that is traceable to NIST and verifies that the shop measuringdevice’s accuracy is within specified parameters.special tool: A customized tool fabricated, purchased or supplied for a specific purpose. A special tool maybe considered a precision measuring device.special gauging: Gauges used to verify OEM specifications. A special gauge may be considered a precisionmeasuring device.Abbreviations and acronymsANSIISOOEMNATSANCRNISTRTSAmerican National Standards InstituteInternational Standards Organizationoriginal equipment manufacturerNorth American Transit Services Associationno calibration requiredNational Institute of Science and Technologyrail transit system 2016 American Public Transportation AssociationPage 5 of 8

APTA RT-VIM-S-017-03 Rev 2Calibration of Inspection and Maintenance Precision Measuring Devices and ToolsSummary of changes1. formatted to the new APTA recommended practice format.Sections have been moved and renumbered.Scope and summary moved to the front page.Sections of definitions, abbreviations and acronyms moved to the rear of the document.Four new sections added: “Related APTA Standards”, “Summary of document changes,” “Note onAlternate Practices” and “Document history.”6. Some global changes to section headings and numberings resulted when sections dealing withreferences and acronyms were moved to the end of the document, along with other cosmetic changes,such as capitalization, punctuation, spelling, grammar and general flow of text.7. Working Group membership updated.Document historyDocumentVersionWorking GroupVotePublicCommentRailCEO ApprovalFirst PublishedJan 14, 2003--RailPolicy & PlanningApprovalSep 28, 2003First RevisionSecond RevisionApril 2015------PublishedDateSep 28 2003Nov 2 2006Jan 6 2016NOTE: This document was reaffirmed due to minor cosmetic changes and approved by the Rail TransitVehicle Inspection & Maintenance Working Group at a meeting in Pittsburgh, PA November 3 & 4, 2015. 2016 American Public Transportation AssociationPage 6 of 8

APTA RT-VIM-S-017-03 Rev 2Calibration of Inspection and Maintenance Precision Measuring Devices and ToolsAnnex A (informative): Sample calibration databaseDescriptionModelID #Serial #ManufacturerAllen ground leakdetectorSG-65M2B W-111 ocation1 yearExternalBach-Simpson Canopy1 year00-20-617 6/7/20026/7/2003W-033 G-344014AerospaceLoco insp.shop1 yearExternal12/5/2002W-066 7919MitutoyoProj. adm.1 year00-22-004 1/8/20021/8/2003W-050 7021764MitutoyoLoco repairshop1 yearExternalAt Pylon4/3/2002Capacitance meter 820W-014 90-40948BK PrecisionElectronics lab 2 yearExternal12/5/200112/5/2002Compressiontester set9572281W146HEMDDiesel repair1 yearExternal12/5/200112/5/2002Dial indicator697W-069StarrettLoco repairshop1 yearExternal12/5/200112/5/2002Digital back toback gauge543-453BW-067 5469MitutoyoProj. adm.1 yearExternal12/5/200112/5/2002Digital force gauge FGE-100X W-147 Z9502B033 ShimpoPM1 year4/25/20024/25/2003Digital microngauge9450DW-007 12453TIFCoach shop1 year00-00-372 ukeA/C, C.Campbell1 year00-21-388 6/21/20026/21/2003Durometer,hardness gauge1700W-139 A-02543Rex Gauge Co. Paul Elias2 year00-21-539 10/5/20009/7/2002Force gaugeFGE-200H W-141 E300H001 ShimpoFreon chargingscale-1TIF 9010Caliper, dial 0-6"Caliper, dial 0-8"500-197Caliper, digital 0-6"Coach shopCalibrationCalibration CalibrationStock #FrequencyDateDue Date12/5/200112/5/200112/5/2002Paul Elias1 year00-21-550 11/14/2001 11/14/2002W-005 30475TIFCoach shop1 year00-00-007 1/21/20021/21/2003Frequency counter 1803W-015 11807936BK PrecisionElectronics Lab 2 yearExternal6/21/20026/21/2003Go/no-go threadplug gauge5/8-18UNFW-129Frank CoxPM/wheel cart 1 yearExternalOut ofservice5/2/2002Hydraulic torquemachine70W-061 7143DPTame Inc.Loco/tractionmotors2 yearExternal1/6/20011/6/2003Indicator, test711W-037 T3StarrettLoco repairshop1 year00-21-403 At Pylon6/14/2002LCD vacuumgauge69070W-137RitchieA/C, C.Campbell1 year00-20-806 Out ofserviceTrying tofind asupplierLCR meter878W-020 23705931BK PrecisionElectronics lab 2 yearExternalTo becalibratedExtension1/12/03MegohmeterTES1601W-148 990309874Diesel repair1 yearExternal12/5/200112/5/2002MitutoyoLoco repairshop1 year00-21-404 6/21/20026/21/2003Micrometer 0-1".0001"W-105 GO 4-20Multimeter, digitalFluke 26-3 W-120 73020269FlukePM day shift1 18 12923BK precisionElectronics lab 2 yearExternal12/5/200112/5/2002Pressure gaugeA551090W-125Beacon1 year00-99-548 12/5/200112/5/2002W-132Beacon1 year00-99-548 6/21/20026/21/2003Pressure gauge/master 2016 American Public Transportation AssociationC.S. SilvioPage 7 of 8

APTA RT-VIM-S-017-03 Rev 2Calibration of Inspection and Maintenance Precision Measuring Devices and ToolsDescriptionModelID #Serial #ManufacturerLocationCalibrationCalibration CalibrationStock #FrequencyDateDue DateRoughness meter M3AW-045 27174PerthenLoco repairshop1 yearExternal12/5/200112/ 5/2002Signal receiverAllen groundW-130 R194AjaxConsolidatedCoach shop1 yearExternal12/5/200112/5/2002Sound level meter K7010W-144 185522KletonDiesel repair1 yearExternal12/10/2001 12/10/2002Tachometer,digital3T2159W-078CatLoco repairshop1 yearExternal12/5/200112/5/2002Test bridge5305W-068Leeds &NorthrupTool crib1 yearExternal12/5/200112/5/2002Torque multiplierGA 185W-118 19434Snap-OnDiesel repair1 year00-21-379 1/24/20021/24/2003Torque wrench0-250 lbs.TW-12W-075WestwardCoach shop1 year00-21-274 At Pylon5/24/2002Velocity pickupPMC258D W-051- Balmac211 PMC/Beta2Loco repairshop1 yearExternal12/15/2001 12/15/2002Vibration meter211W-051 840012BalmacLoco repairshop1 yearExternal12/15/2001 12/15/2002Waveformgenerator33120AW-017 US34015157HewlettPackardElectronics lab 2 yearStanleyCoach ShopSR95M12BTape Measure 2016 American Public Transportation AssociationNCR00-22-011 2/11/2002NCR2/11/2003NCRPage 8 of 8

The RTS shall develop and implement a calibration procedure that is in compliance with ISO 10012 and this standard. The calibration procedure shall require employees to perform self-tests and self-calibration on equipment with built-in self-test and se

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