DIN 15538-1-1991 17.5mm和35mm磁胶片.DIN标准胶片BF17A.BF17F和BF35A
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来源:标准资料网
【英文标准名称】:Magneticfilm17,5mmand35mm;DIN-testfilmBF17A,BF17FandBF35A
【原文标准名称】:17.5mm和35mm磁胶片.DIN标准胶片BF17A.BF17F和BF35A
【标准号】:DIN15538-1-1991
【标准状态】:作废
【国别】:德国
【发布日期】:1991-04
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:磁道位置;分类;记录;记录道;DIN试验胶片;帧频;试验片;空中吊运装置;尺寸;影片;磁带;频率响应;试验胶片;录音;涂磁胶片;磁带记录;作标记;电视技术;基准面;磁道间距;声道
【英文主题词】:
【摘要】:
【中国标准分类号】:N41;G81
【国际标准分类号】:37_060_20;37_060_10
【页数】:4P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodsforDegreeofFilamentYarnEntanglementbyNeedleInsertionMethods
【原文标准名称】:用针入法测试线纱缠结度的标准试验方法
【标准号】:ASTMD4724-1999(2005)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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
【摘要】:Option1ofthistestmethodforthedeterminationofthedegreeoffilamentyarnentanglement,asmeasuredinstrumentally,isusedforacceptancetestingofcommercialshipments;however,cautionisadvisedbecauseinformationonbetween-laboratoryprecisionislacking.Comparativetests,asdirectedin5.1.1,maybeadvisable.5.1.1Iftherearedifferencesofpracticalsignificancebetweenthereportedtestresultsfortwoormorelaboratories,comparativetestsshouldbeperformedbythoselaboratoriestodetermineifthereisastatisticalbiasbetweenthem,usingcompetentstatisticalassistance.Asaminimum,samplesusedforeachcomparativetestshouldbeashomogeneousaspossible,drawnfromthesamelotofmaterialasthesamplesthatresultsindisparateresultsduringinitialtesting,andrandomlyassignedinequalnumberstoeachlaboratory.Otherfabricswithestablishedtestvaluesmaybeusedforthispurpose.Thetestresultsfromthelaboratoriesinvolvedshouldbecomparedappropriatestatisticalanalysisandaprobabilitylevelchosenbythetwopartiesbeforetestingbegins,ataprobabilitylevelchosenpriortothetestingseries.Ifabiasisfound,eitheritscausemustbefoundandcorrectedorfuturetestresultsmustbeadjustedinconsiderationoftheknownbias.Option2forthistestmethodisintendedforusewhenthesupplyofyarnislimited.Theinstrumentaloptionofthistestmethodisbasedonthetotalrandomizationoftheentanglementsintheyarn;therefore,thedistancemeasuredbetweenthepointofinsertionofapininthemiddleoftheyarnandthepointatwhichanentanglementisencountered,bymovementoftheyarnorthepinuntilitisstoppedatapresetlevelofforce,isrepresentativeofthedistancebetweentwoentanglementsatsomelocationintheyarn.Entanglementsareusedfrequentlyinsteadoftwisttoensuretheintegrityoffilamentyarns.Suchentanglementsgenerallygivesomewhatlessprotectionduringweavingorknittingthantwist,butwithpropercare,willperformquitesatisfactorily.1.1Thistestmethodcoverstwooptionsforthemeasurementofentanglementsinfilamentyarnsusingneedleinsertionoptionsforinstrument(A)andmanual(B)techniques.1.2ThevaluesstatedineitherSIorinch-poundunits(inparentheses)aretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheotherwithoutcombiningvaluesinanyway.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W04
【国际标准分类号】:59_080_20
【页数】:6P.;A4
【正文语种】:
【英文标准名称】:HighBitRateDigitalSubscriberLine-2ndGeneration(HDSL2)
【原文标准名称】:高比特数字用户线.第2次形成
【标准号】:ANSIT1.418-2000
【标准状态】:作废
【国别】:美国
【发布日期】:2000
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:信号传输;远程通信;电信网;电信;通信
【英文主题词】:signaltransmission;telecommunication;telecommunicationnetworks
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_040_20
【页数】:
【正文语种】:英语