1、Designation: F 1470 09Standard Practice forFastener Sampling for Specified Mechanical Properties andPerformance Inspection1This standard is issued under the fixed designation F 1470; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.INTRODUCTIONThroughout this practice the terms detection and prevention apply to quality control systems.Abriefdescrip
3、tion of both is provided to assist the purchaser in the application of this practice.The detection system relies on inspection as the primary means of controlling the quality offurnished material. Methods include in-process and final inspection. In-process inspection is typicallyperformed by the ind
4、ividual performing the process and generally includes a first-piece inspection bysomeone other than the operator. Quality-control inspection may perform audit inspections on theprocess output during the course of the production run. In addition, a final inspection is performed byquality control insp
5、ectors according to a prescribed sample plan. The other sample plans utilize zerodefects as their acceptance criteria.The prevention system uses advanced quality planning in addition to many of the techniques usedin the detection system. Quality planning incorporates a systems approach to quality co
6、ntrol thatfocuses on defect prevention and continual improvement. In addition, Statistical Process Control(SPC) is usually applied to control the process, to achieve process stability and improve the capabilityby reducing the variability.ISO 9001, ISO/TS 16949, ASQ Q9001, and Guide F 26882quality sy
7、stem standards, or acombination thereof, are models that may be used in establishing a prevention-based quality system.1. Scope1.1 This practice provides sampling methods for determin-ing how many fasteners to include in a random sample in orderto determine the acceptability or disposition of a give
8、n lot offasteners.1.2 This practice is for mechanical properties, physicalproperties, performance properties, coating requirements, andother quality requirements specified in the standards of ASTMCommittee F16. Dimensional and thread criteria samplingplans are the responsibility of ASME Committees B
9、18.1 andB18.18.2M-B18.18.6M.1.3 This practice provides for two sampling plans: onedesignated the “detection process,” as described in Terminol-ogy F 1789, and one designated the “prevention process,” asdescribed in Terminology F 1789.1.4 This practice is intended to be used as either a FinalInspecti
10、on Plan for manufacturers, or as a Receiving InspectionPlan for purchasers/users. It is not valid for third-party quali-fication testing.2. Referenced Documents2.1 ASTM Standards:F 1789 Terminology for F16 Mechanical FastenersF 788/F 788M Specification for Surface Discontinuities ofBolts, Screws, an
11、d Studs, Inch and Metric SeriesF 812/F 812M Specification for Surface Discontinuities ofNuts, Inch and Metric SeriesF 2688 Guide for System-Based, Customer-Centered Qual-ity Plan for Manufacturers2.2 ASME Standards:ASME B18.18.1 Inspection and QualityAssurance for Gen-eral Purpose FastenersASME B18.
12、18.2M Inspection and Quality Assurance forHigh-Volume Machine Assembly Fasteners1This practice is under the jurisdiction of ASTM Committee F16 on Fastenersand is the direct responsibility of Subcommittee F16.93 on Quality AssuranceProvisions for Fasteners.Current edition approved Jan. 1, 2009. Publi
13、shed January 2009. Originallyapproved in 1993. Last previous edition approved 2002 as F 147002.2A practice for developing a quality management system that does not requirethird party certification.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, Un
14、ited States.ASME B18.18.3M Inspection and Quality Assurance forSpecial Purpose Fasteners3ASME B18.18.5M Inspection and Quality Assurance PlanRequiring In-Process Inspection and Controls3ASME B18.18.6M Quality Assurance Plan for FastenersProduced in Third Party Accreditation System32.3 ASQ Standards:
15、ASQ Q9001 Quality Management Systems32.4 ISO Standards:ISO 9001 Quality Management Systems Requirements3ISO/TS 16949 Quality management systemsParticular re-quirements for the application of ISO 9001: 2000 forautomotive production and relevant service part organiza-tions.33. Terminology3.1 Terms sha
16、ll be defined in accordance with TerminologyF 1789.3.2 Definitions:3.2.1 test, nan element of inspection that generally de-notes the determination by technical means of the properties orelements of supplies, or components thereof and involves theapplication of established scientific principles and p
17、rocedures.4. Significance and Use4.1 Sampling shall be selected in a random manner, ensur-ing that any unit in the lot has an equal chance of being chosen.Sampling should not be localized by selections being takenfrom the top of a container or from only one container ofmulticontainer lots.4.2 The pu
18、rchaser should be aware of the suppliers qualityassurance system. This can be accomplished by auditing thesuppliers quality system, if qualified auditors are available, orby third-party assessment certification, such as provided byISO/TS 16949,orISO 9001.5. Ordering Information5.1 The purchaser shal
19、l specify at the time of order inquiry,the specification number, the issue date and the sampling plan(detection process or prevention process) required from thesupplier.5.2 Guidelines for sampling plan selection are provided inSection 6.6. Selection of Sampling Plans6.1 Except as specified in 6.2, t
20、he detection process sam-pling level in accordance with Table 1 shall be applied.6.2 If the manufacturers quality system conforms withASQ Q9001, ISO 9001, or Guide F 26882the manufacturershall be permitted to choose between the Prevention orDetection process for inspection and test purposes. Purchas
21、ersshall retain the right to specify the Prevention or Detectionprocess at the time of inquiry or order (see Table 2).7. Acceptance Criteria7.1 The acceptance criteria for Table 3 is to accept the lot ifzero nonconforming parts are detected in the random sampleand reject the lot if at least one nonc
22、onforming part is detectedin the random sample.8. Disposition of Nonconforming Lots8.1 Manufacturers OptionsThe manufacturer shallchoose one of the following options in the disposition of thosefasteners that have been found to contain nonconformities priorto shipment. The fastener manufacturer shall
23、 maintain recordsof disposition.8.1.1 They may be scrapped.8.1.2 They may be 100 % sorted, and all nonconformingparts removed.8.1.3 They may be reworked or reprocessed to correct thenonconforming characteristic(s).8.1.4 The manufacturer may make concession by use of adocumented internal review proce
24、dure and determine to shipproduct that is found to contain minor nonconformances thatare not critical or key characteristics as determined by the enduser. Nonconformance of critical or key characteristics shallneed approval from the end user prior to shipment of product.(See 8.1.6.)8.1.5 They may be
25、 regraded for alternative applications.8.1.6 The end user may be informed of the nonconformityor nonconformities and his advice requested on their disposi-tion. The user may consider the degree to which the charac-teristic(s) deviate(s) from specified requirements and the sig-nificance of the effect
26、 on the assembly or performance of thefasteners in their service application. The user may authorize awritten release of the fasteners for completion of production orfor shipment, as applicable.8.2 End User OptionsThe end user shall choose one ofthe following options for the disposition of those fas
27、tener lotsthat have been rejected after delivery:8.2.1 The end user considers the degree to which thecharacteristic(s) deviate(s) from specified requirements and theeffect on their performance in the intended service application.The end user may authorize release of the parts or fastener lotsfor use
28、.8.2.2 They may be scrapped.8.2.3 They may be 100 % sorted and nonconforming partsremoved.8.2.4 They may be reworked or reprocessed to correct thenonconforming characteristic(s).8.2.5 They may be returned.8.3 Distributor OptionsThe distributor shall choose oneof the following options for the disposi
29、tion of those fastenerlots that have been rejected after delivery.8.3.1 They may be scrapped.8.3.2 They may be 100 % sorted, and nonconforming partsmay be removed with the written agreement of the manufac-turer. See Note 1.NOTE 1In general, product standards specify requirements for manu-facturers m
30、arkings. Lot control, invoice information, and packaging maybe another source of identification of the manufacturer.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.F 1470 092TABLE 1 Sampling Level for the Detection Proces
31、sNOTE 1Legend: WAWhere Applicable.NANot Applicable.CharacteristicDescription of ControlSample LevelAInternally ThreadedPartsExternally ThreadedPartsNon-threaded WashersAdhesion (coating) C WA WA WA WAAssembly tension test B NA WA NA NABend, body (nails) A NA NA WA NABend, notched (bolts) B NA WA NA
32、NABend, body (track spikes) C NA NA WA NABreaking strength (eyebolts) C NA WA NA NACarbide precipitation C WA WA WA WACase depth/decarburization C WA WA WA WAChemistryB AWAWCompression (washer direct tension) A NA NA NA WACone proof C WA NA NA NADrive test A WA WA NA NAElongationMachined specimen C
33、NA WA WA NAExtension at failure C NA WA WA NAGrain sizeC WAWAWWHardnessDBBend, head (track spikes) C NA NA WA NAHumidity B WA WA WA WAHydrogen embrittlement B WA WA WA WAImpact C NA WA WA NALubrication B WA WA WA WAMagnetic permeability B WA WA WA WAPackagingE AWAWPlating/coating thickness (weight)
34、A WA WA WA WAProduct identification markingFProof loadFull size C WA WA NA NAReduction of areaMachined specimen C NA WA WA NABend, rivet B NA NA WA NAFlattening, rivet B NA NA WA NARotational capacity C WA WA NA WASalt sprayGAWAWShear strength C NA WA WA NAStress corrosion B WA WA WA WASurface disco
35、ntinuitiesHAWAWSurface roughness B WA WA WA WATensile strengthFull sizeICN NTensile strengthMachined specimen C NA WA WA NATorqueJ(prevailing) C WA WA NA NATorque (torsional strength) C WA WA NA NAYield strengthFull size C NA WA NA NAYield strengthMachined specimen C NA WA NA NAAQuantity of samples
36、is in Table 3, Sample Size.BA certified copy of the materials chemical or product analysis shall be furnished with each shipping lot, and the shipping lot shall have documentation providingtraceability to this chemical analysis. It is required that the purchaser of the raw material (used to manufact
37、ure) shall verify that the material is the material specified onthe purchase order.CThe steel producer shall provide the steel making practice (course or fine grain) on their certification. The steel producer may specify grain size at their option.DSurface or core, or both, as applicable.EAll packag
38、ing requirements shall be in conformance with the applicable packaging standard.FVisual inspection for conformance.GContinuous monitoring of salt spray performance in accordance with the recommendation of Table B in Appendix 1 of ASME B18.18.2M constitutes compliance withthe requirements for salt sp
39、ray testing outlined in this table.HIncludes all surface discontinuities contained within Specification F 788/F 788M and Specification F 812/F 812M.IWedge angle or axial test as applicable.JPrevailing torque test includes thread start, all specified torque requirements, and retention of locking feat
40、ure, when applicable.F 1470 093TABLE 2 Sampling Level for the Prevention ProcessNOTE 1Legend: WAWhere Applicable.NANot Applicable.CharacteristicDescription of ControlSample LevelA,BInternally ThreadedPartsExternally ThreadedPartsNon-threaded WashersAdhesion (coating) D WA WA WA WAAssembly tension te
41、st C NA WA NA NABend, body (nails) B NA NA WA NABend, notched (bolts) C NA WA NA NABend, body (track spikes) D NA NA WA NABreaking strength (eyebolts) D NA WA NA NACarbide precipitation D WA WA WA WACase depth/decarburization D WA WA WA WAChemistryC AWAWCompression (washer direct tension) B NA NA NA
42、 WACone proof D WA NA NA NADrive test B WA WA NA NAElongationMachined specimen D NA WA WA NAExtension at failure D NA WA WA NAGrain sizeD WAWAWWHardnessECBend, head (track spikes) D NA NA WA NAHumidity C WA WA WA WAHydrogen embrittlement C WA WA WA WAImpact D NA WA WA NALubrication C WA WA WA WAMagn
43、etic permeability C WA WA WA WAPackagingF AWAWPlating/coating thickness (weight) B WA WA WA WAProduct identification markingGProof loadFull size D WA WA NA NAReduction of areaMachined specimen D NA WA WA NABend, rivet C NA NA WA NAFlattening, rivet C NA NA WA NARotational capacity D WA WA NA WASalt
44、sprayHAWAWShear strength D NA WA WA NAStress corrosion C WA WA WA WASurface discontinuitiesIAWAWSurface roughness C WA WA WA WATensile strengthFull sizeJDN NTensile strengthMachined specimen D NA WA WA NATorqueK(prevailing) D WA WA NA NATorque (torsional strength) D WA WA NA NAYield strengthFull siz
45、e D NA WA NA NAYield strengthMachined specimen D NA WA NA NAAFinal inspection of a characteristic may be carried out at any stage of manufacture, provided the characteristic is not subject to change in any further manufacturingor processing operation. Therefore, the testing of those samples may be d
46、educted from the sample level specified.BQuantity of samples is in Table 3, Sample Size.CA certified copy of the materials chemical or product analysis shall be furnished with each shipping lot, and the shipping lot shall have documentation providingtraceability to this chemical analysis. It is requ
47、ired that the purchaser of the raw material (used to manufacture) shall verify that the material is the material specified onthe purchase order.DSteel making practice (course or fine grain) shall be included with the material producers chemical analysis report.ESurface, core, or both, as applicable.
48、FAll packaging requirements shall be in conformance with the applicable packaging standard.GVisual inspection for conformance.HContinuous monitoring of salt spray performance in accordance with the recommendation of Table B in Appendix 1 of ASME B18.18.2M constitutes compliance withthe requirements
49、for salt spray testing outlined in this table.IIncludes all surface discontinuities contained within Specification F 788/F 788M and Specification F 812/F 812M.JWedge angle or axial test as applicable.KPrevailing torque test includes thread start, all specified torque requirements, and retention of locking feature, when applicable.F 1470 0948.3.3 They may be reworked or reprocessed to correct thenonconforming characteristic(s) with the written agreement ofthe manufacturer. See Note 1.8.3.4 They may be returned. See Note 1.8.4 ReinspectionAll
