ASTM D1447-2007e1 用光电测量棉纤维的长度和长度均匀度的标准试验方法

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【英文标准名称】:StandardTestMethodforLengthandLengthUniformityofCottonFibersbyPhotoelectricMeasurement
【原文标准名称】:用光电测量棉纤维的长度和长度均匀度的标准试验方法
【标准号】:ASTMD1447-2007e1
【标准状态】:现行
【国别】:美国
【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】:D13.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:cotton;length;Cottonfabrics/fibers;Fiberlength;Fibrographmethod
【摘要】:Thistestmethodisconsideredsatisfactoryforacceptancetestingwhenthelevelsofthelaboratoriesarecontrolledbytheuseofthesamereferencestandardcottonsamplesbecausethecurrentestimatesofbetween-laboratoryprecisionareacceptableundertheseconditions.Iftherearedifferencesofpracticalsignificancebetweenreportedtestresultsfortwolaboratories(ormore),comparativetestsshouldbeperformedtodetermineifthereisastatisticalbiasbetweenthem,usingcompetentstatisticalassistance.Asaminimum,ensurethetestsamplestobeusedareashomogeneousaspossible,aredrawnfromthematerialfromwhichthedisparatetestresultswereobtained,andarerandomlyassignedinequalnumberstoeachlaboratoryfortesting.Thetestfromthetwolaboratoriesshouldbecomparedusingastatisticaltestforunpaireddata,ataprobabilitylevelchosenpriortothetestingseries.Ifabiasisfound,eitheritscausemustbefoundandcorrected,orfuturetestresultsforthatmaterialmustbeadjustedinconsiderationoftheknownbias.Fibrographmeasurementsprovidearelativelyfastmethodfordeterminingthelengthandlengthuniformityofthefibersinasampleofcottoninareproduciblemanner.ResultsoftheFibrographlengthtestsdonotnecessarilyagreewiththoseobtainedbyothermethodsformeasuringlengthsofcottonfibersbecauseoftheeffectoffibercrimpandotherfactors.Fibrographtestsaremoreobjectivethancommercialstaplelengthclassificationsandalsoprovideadditionalinformationonfiberlengthuniformityofcottonfibers.Thecottonqualityinformationprovidedbytheseresultsisusedinresearchstudiesandqualitysurveys,incheckingcommercialstaplelengthclassifications,inassemblingbalesofcottonintouniformlots,andforotherpurposes.Fibrographmeasurementsarebasedontheassumptionsthatafiberiscaughtrandomlyalongitslength.1.1Thistestmethodcoversthemeasurementofthelengthandlengthuniformityofcottonfibersbyuseofphotoelectricmeasurement.Thetestmethodisapplicabletofiberstakenfromraworpartiallyprocessedcotton(uptocardmat)orsometypesofcottonwaste,butnottofibersfromblendsofcottonwithotherfibersortofibersrecoveredfromcottonyarns,fabricsorto100%systheticfibers.1.2ThistestmethodisespeciallyadaptedfordeterminingthelengthandlengthuniformityofcottonfibersbymodelsoftheDigitalFibrograph,hereafterreferredtoasFibrograph.Note18212;InstructionsfortheuseofManualandServoFibrographModelswereincludedinthetextofTestMethodD1447in1971andpreviouseditions.Note28212;ForothermethodscoveringthemeasurementofthelengthofcottonfibersrefertoTestMethodD1440.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W10
【国际标准分类号】:59_060_10
【页数】:6P.;A4
【正文语种】:英语

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Product Code:SAE AIR5704
Title:Field Viscosity Test for Thickened Aircraft Anti-Icing Fluids
Issuing Committee:G-12adf Aircraft Deicing Fluids
Scope:This SAE Aerospace Information Report (AIR) provides a description of a screening method for use in the field for verifying an AMS 1428 anti-icing fluid is above its minimum low shear viscosity as published with holdover time guidelines. The test will determine if the fluid is (a) satisfactory, (b) unsatisfactory, or (c) borderline needing more advanced viscometry testing. Other field tests may be required to determine if an anti-icing fluid is useable, such as refractive index, appearance or other tests as may be recommended by the fluid manufacturer.【英文标准名称】:Cleanroomsandassociatedcontrolledenvironments-Classificationofaircleanliness
【原文标准名称】:洁净室和相关的控制环境.空气清洁度的分级
【标准号】:BSENISO14644-1-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-08-15
【实施或试行日期】:1999-08-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:数学计算;抽样方法;颗粒空气污染物;浓缩;异常值;无菌室;分类系统;算法;合格;环境清洁;统计方法分析;试验设备;试样;粒度分布;名称与符号;采样位置
【英文主题词】:Airpollution;Airpurity;Airquality;Airbornedust;Amount;Categoriesofpurity;Classes;Classification;Classificationsystems;Cleanrooms;Cleanliness;Clean-roomtechnology;Concentration;Concentrationofparticles;Consistency;Definition;Definitions;Degreeofpurity;Determinationofcontent;Documentations;Exteriorareas;Impurities;Lightscattermeasurement;Mathematicalcalculations;Methods;Numberofparticles;Particleanalysis;Particlesize;Particlesizedistribution;Particles;Particulateairpollutants;Pure;Pureair;Puritycriterion;Puritytest;Testing
【摘要】:ThispartofISO14644coverstheclassificationofaircleanli-nessincleanroomsandassociatedcontrolledenvironmentsexclusivelyintermsofconcentrationofairborneparticles.Onlyparticlepopulationshavingcumulativedistributionsbasedonthreshold(lowerlimit)sizesrangingfrom0,1μmto5μmareconsideredforclassificationpurposes.ThispartofISO14644doesnotprovideforclassificationofparticlepopulationsthatareoutsideofthespecifiedparticlesizerange,0,1μmto5μm.Concentrationsofultrafineparticles(particlessmallerthan0,1μm)andmacroparticles(particleslargerthan5μm)maybeusedtoquantifythesepopulationsintermsofUdescriptorsandMdescriptors,respectively.ThispartofISO14644cannotbeusedtocharacterizethephysical,chemical,radiological,orviablenatureofairborneparticles.NOTETheactualdistributionofparticleconcentrationswithinincre-mentalsizerangesnormallyisnotpredictableandtypicallyisvariableovertime.
【中国标准分类号】:N04
【国际标准分类号】:13_040_35
【页数】:34P.;A4
【正文语种】:英语

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ASTM D1447-2007e1 用光电测量棉纤维的长度和长度均匀度的标准试验方法

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