【英文标准名称】:Earth-movingmachinery-Safetysignsandhazardpictorials-Generalprinciples
【原文标准名称】:土方机械安全标记和危险图示一般原则
【标准号】:ISO9244-1995
【标准状态】:作废
【国别】:国际
【发布日期】:1995-05
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC127
【标准类型】:()
【标准水平】:()
【中文主题词】:危险点标志;规范(批准);安全措施;事故预防;图形符号;图形符号;安全标志;土方机械
【英文主题词】:Accidentprevention;Earth-movingequipment;Graphicsymbols;Markingofpointsofhazard;Pictographs;Safetymarkings;Safetymeasures;Specification(approval)
【摘要】:Establishesgeneralprinciplesforthedesignandapplicationofsafetysignsandhazardpictorialspermanentlyaffixedtoearth-movingmachineryasdefinedinISO6165.Outlinessafetysignobjectives,describesthebasicsafetysignformats,specifiescoloursforsafetysigns,andprovidesguidanceondevelopingthevariouspanelsthattogetherconstituteasafetysign.
【中国标准分类号】:P97
【国际标准分类号】:01_080_30;53_100
【页数】:38P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforAbrasionResistanceofTextileFabrics(FlexingandAbrasionMethod)
【原文标准名称】:织物抗磨性的标准试验方法(褶曲和磨蚀法)
【标准号】:ASTMD3885-2007a
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D13.60
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:磨蚀;抗磨性;测试;织物
【英文主题词】:abrasion;flexingandabrasion;textilefabric;Abrasionresistance--textilefabrics/fibers;Flexabrasiontest;Flex/abrasiontestermaintenance;Nonwoventextilefabrics;Stollabrasionmethod
【摘要】:Thistestmethodisnotrecommendedforacceptancetestingofcommercialshipmentsbecauseinformationonbetween-laboratoryprecisionisknowntobepoor.Iftherearedifferencesofpracticalsignificancebetweenreportedtestresultsfortwolaboratories(ormore),comparativetestsshouldbeperformedtodetermineifthereisastatisticalbiasbetweenthem,usingcompetentstatisticalassistance.Asaminimum,thetestsamplestobeusedareashomogenousaspossible,aredrawnfromthematerialfromwhichthedisparatetestresultswereobtained,andarerandomlyassignedinequalnumberstoeachlaboratoryfortesting.Otherfabricswithestablishedtestvaluesmaybeusedforthispurpose.Thetestresultsfromthetwolaboratoriesshouldbecomparedusingastatisticaltestforunpaireddata,ataprobabilitylevelchosenpriortothetestingseries.Ifabiasisfound,eitheritscausemustbefoundandcorrected,orfuturetestresultsmustbeadjustedinconsiderationoftheknownbias.Themeasurementoftheresistancetoabrasionoftextilefabricsisverycomplex.Theresistancetoabrasionisaffectedbymanyfactorsthatincludetheinherentmechanicalpropertiesofthefibers;thedimensionsofthefibers;thestructureoftheyarns;theconstructionofthefabrics;thetype,kind,andamountoftreatmentaddedtothefibers,yarns,orfabric;thenatureoftheabradant;thevariableactionoftheabradantoverthespecimenareaabraded;thetensiononthespecimen;thepressurebetweenthespecimenandtheabradant;andthedimensionalchangesinthespecimen.Themeasurementoftherelativeamountofabrasioncanbeaffectedbythemethodofevaluationandisofteninfluencedbythejudgmentoftheoperator.Itisrecognizedthatwiththistestmethodothermeansofevaluationbesidescyclestoruptureandbreakingstrengthhavebeenusedbytheindustry,suchascolorchange,appearancechange,andsoforth.Experiencehasshownthesetobehighlyvariableparametersandtheyarenotrecommendedwithoutexactcriteriaidentifiedinanapplicablematerialspecificationorcontract.Consequently,thecriteriaofbreakingstrengthandcyclestorupturearetherecommendedmeansofevaluationbecausetheyareconsideredtheleastvariableandinterlaboratoryagreementislikelytobeobtainedmoreeasily.Abrasiontestsaresubjecttovariationsduetochangesintheabradantbarduringspecifictests.Theabradantbarisconsideredapermanentabradantthatusesahardenedmetalsurface.Itisassumedthattheabradantwillnotchangeappreciablyinaspecificseriesoftests,butobviouslysimilarabradantsusedindifferentlaboratorieswillnotlikelychangeatthesamerateduetodifferencesinusage.Permanentabradantsmayalsochangeduetopickupoftreatmentsorothermaterialfromtestfabricsandmustaccordinglybecleanedatfrequentintervals.Consequently,dependinguponitsusage,theabradantbarmustbecheckedperiodicallyagainstastandard.Theresistanceoftextilematerialstoabrasionasmeasuredbythistestmethoddoesnotincludeallthefactorswhichaccountforwearperformanceordurabilityinactualuse.Whiletheabrasionresistancestatedintermsofthenumberofcyclesanddurability(definedastheabilitytowithstanddeteriorationorwearingoutinuse,includingtheeffectsofabrasion)arefrequentlyrelated,therelationshipvarieswithdifferentenduses.Differentfactorsmaybenecessaryinanycalculationofpredicteddurabilityfromspecificabrasiondata.Laboratorytestsmaybereliableasanindicationofrelativeenduseincaseswherethedifferenceinabrasionresistanceofvariousmaterialsislarge,buttheyshouldnotberelieduponwheredifferencesinlaboratorytestfindingsaresmall.Ingeneral,theresultsshouldnotberelieduponforpredictionofperformanceduringactualwearlifeforspeci......
【中国标准分类号】:W04
【国际标准分类号】:59_080_30
【页数】:8P.;A4
【正文语种】: