【英文标准名称】:StandardTestMethodforEntanglementsinUntwistedFilamentYarnsbyNeedleInsertion
【原文标准名称】:针入法测定反捻长丝纱的缠结度的标准试验方法
【标准号】:ASTMD4724-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D13.58
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:entanglement;yarn;Acceptancecriteria/testing--textilefabrics/fibers;Averagecentimeterpull;Entanglement;Fiberlength;Filamentyarn;Forwardingtime;Instrumentalmeasurement--textiles;Integritytesting;Man-madetextilefibers;Manualmethod;M
【摘要】:Option1ofthistestmethodforthedeterminationofthedegreeofuntwistedfilamentyarnentanglement,asmeasuredinstrumentally,isusedforacceptancetestingofcommercialshipments;however,cautionisadvisedbecauseinformationonbetween-laboratoryprecisionislacking.Comparativetests,asdirectedin5.1.1,maybeadvisable.Iftherearedifferencesofpracticalsignificancebetweenthereportedtestresultsfortwoormorelaboratories,comparativetestsshouldbeperformedbythoselaboratoriestodetermineifthereisastatisticalbiasbetweenthem,usingcompetentstatisticalassistance.Asaminimum,samplesusedforeachcomparativetestshouldbeashomogeneousaspossible,drawnfromthesamelotofmaterialasthesamplesthatresultsindisparateresultsduringinitialtesting,andrandomlyassignedinequalnumberstoeachlaboratory.Otherfabricswithestablishedtestvaluesmaybeusedforthispurpose.Thetestresultsfromthelaboratoriesinvolvedshouldbecomparedappropriatestatisticalanalysisandaprobabilitylevelchosenbythetwopartiesbeforetestingbegins,ataprobabilitylevelchosenpriortothetestingseries.Ifabiasisfound,eitheritscausemustbefoundandcorrectedorfuturetestresultsmustbeadjustedinconsiderationoftheknownbias.Option2forthistestmethodisintendedforusewhenthesupplyofyarnislimited.Theinstrumentaloptionofthistestmethodisbasedonthetotalrandomizationoftheentanglementsintheyarn;therefore,thedistancemeasuredbetweenthepointofinsertionofapininthemiddleoftheyarnandthepointatwhichanentanglementisencountered,bymovementoftheyarnorthepinuntilitisstoppedatapresetlevelofforce,isrepresentativeofthedistancebetweentwoentanglementsatsomelocationintheyarn.Entanglementsareusedfrequentlyinsteadoftwisttoensuretheintegrityoffilamentyarns.Suchentanglementsgenerallygivesomewhatlessprotectionduringweavingorknittingthantwist,butwithpropercare,willperformquitesatisfactorily.1.1Thistestmethodcoverstwooptionsforthemeasurementofentanglementsinuntwistedfilamentyarnsusingneedleinsertionoptionsforinstrument(A)andmanual(B)techniques.1.2ThevaluesstatedineitherSIorinch-poundunits(inparentheses)aretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheotherwithoutcombiningvaluesinanyway.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W58
【国际标准分类号】:59_080_20
【页数】:6P.;A4
【正文语种】:英语


【英文标准名称】:Methodsforcorrosiontestingofmetallicandotherinorganiccoatingsonmetallicsubstrates-Ratingoftestspecimensandmanufacturedarticlessubjectedtocorrosiontests
【原文标准名称】:金属基体上金属和其它无机覆层的腐蚀试验的方法.用于腐蚀试验的试验样品和制件的分级
【标准号】:BSENISO10289-2001
【标准状态】:现行
【国别】:英国
【发布日期】:2001-05-15
【实施或试行日期】:2001-05-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:板条;试验设备;腐蚀试验;试样;额定值;非金属覆层;腐蚀环境;金属覆层;防护覆层;层覆材料;物理化学法;金属;装饰覆层;加速度试验;环境试验;加速腐蚀试验;耐腐蚀性
【英文主题词】:Appearance;Coatings;Corrosion;Corrosionprotection;Corrosiontests;Defects;Definition;Definitions;Degreesofprotection;Evaluations;Fitnessforpurpose;Inspection;Materialstesting;Metalcoatings;Metals;Ratings;Samples;Surfaces;Testing
【摘要】:ThisInternationalStandardgivesamethodofevaluatingtheconditionofdecorativeandprotectivemetallicandinorganiccoatedpanelsorarticleswhichhavebeenexposedtocorrosiveenvironmentsfortestorforotherpurposes.Itisapplicabletotestpanelsorcomponentsexposedtonaturalatmospheres,inmobileorstaticconditions,orsubjectedtoacceleratedtests.NOTE1ExamplesofsuchtestsaregivenintheBibliography.ThisInternationalStandardrecognizesthattheprotectionratingcanbeassessedobjectivelyinaccordancewithclause6.However,theassessmentofappearancedependsonmanysubjectivefactors(see6.2).NOTE2Theedgesoftestpanelsorcomponentsmaybeprotected,e.g.bytapeorwax(paraffin),ifthisisanagreedpartofthetestandisrecordedinthetestreport.Thisisessentialifthespecimensarecutfromlargerpiecesandhaveexposeduncoatededges.
【中国标准分类号】:A29
【国际标准分类号】:25_220_40;25_220_99
【页数】:32P.;A4
【正文语种】:英语