ASTM D7255-2006e1 皮革的耐摩擦标准试验方法(旋转平台和双头法)

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【英文标准名称】:StandardTestMethodforAbrasionResistanceofLeather(RotaryPlatform,Double-HeadMethod)
【原文标准名称】:皮革的耐摩擦标准试验方法(旋转平台和双头法)
【标准号】:ASTMD7255-2006e1
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D31.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:抗磨性;皮革;平台;试验
【英文主题词】:abraser;abrasion;abrasionresistance;leather;rotaryplatform;wear
【摘要】:Theresistanceofleathertoabrasion,asmeasuredonatestingmachineinthelaboratory,isgenerallyonlyoneofseveralfactorscontributingtowearperformanceordurabilityasexperiencedintheactualuseofthematerial.Whilex201C;abrasionresistancex201D;(oftenstatedintermsofthenumberofabrasioncycles)andx201C;durabilityx201D;(definedastheabilitytowithstanddeteriorationorwearoutinuse,includingtheeffectsofabrasion)arefrequentlyrelated,therelationshipvarieswithdifferentendusesanddifferentfactorsmaybenecessaryinanycalculationofpredicteddurabilityfromspecificabrasiondata.Thistestmethodprovidesacomparativerankingofmaterialperformance,whichcanbeusedasanindicationofrelativeend-useperformance.Theresistanceofleathertoabrasionmaybeaffectedbyfactorsincludingtestconditions,typeofabradant,pressurebetweenthespecimenandabradant,mountingortensionofthespecimen,andtype,kind,oramountoffinishingmaterials.Abrasiontestsutilizingtherotaryplatform,double-headtestermaybesubjecttovariationduetochangesintheabradantduringspecifictests.Dependingonabradanttypeandtestspecimen,thewheelsurfacemaychange(thatis,becomeclogged)duetothepickupoffinishingorothermaterialsfromtestspecimensandmustbecleanedatregularlydefinedintervals.Themeasurementoftherelativeamountofabrasionmayalsobeaffectedbythemethodofevaluationandmaybeinfluencedbythejudgmentoftheoperator.1.1Thistestmethodcoversthedeterminationoftheabrasionresistanceofleatherusingtherotaryplatform,double-headtester(RPDH).Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Y45
【国际标准分类号】:59_140_01
【页数】:6P.;A4
【正文语种】:


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【英文标准名称】:Methodsfortheanalysisofnickelforuseinelectronictubesandvalves-Determinationofiron(photometricmethod)
【原文标准名称】:电子管和电子阀用镍的分析方法.第7部分:铁含量测定(光度测量法)
【标准号】:BS3727-7-1964
【标准状态】:现行
【国别】:英国
【发布日期】:1964-04-20
【实施或试行日期】:1964-04-20
【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】:化学分析和试验;含量测定;分光光度法;电子管;校准;光度测量法(化学分析);镍;EDTA;铁
【英文主题词】:spectrophotometry;iron;edta;electrontubes;photometry(chemicalanalysis);determinationofcontent;nickel;calibration;chemicalanalysisandtesting
【摘要】:CO-OPERATINGORGANIZATIONSINTRODUCTIONAPPARATUSSOLUTIONSREQUIREDSAMPLINGCALIBRATIONPROCEDURENOTES
【中国标准分类号】:L90
【国际标准分类号】:77_120_40
【页数】:8P;A4
【正文语种】:英语


【英文标准名称】:SYMMETRICALTRAPEZOIDALSCREWTHREADS.DIAMETERSANDPITCHES.
【原文标准名称】:梯型螺纹.直径和螺距
【标准号】:NFE03-616-1972
【标准状态】:作废
【国别】:法国
【发布日期】:1972-03
【实施或试行日期】:1972-03-13
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:规范;尺寸;名称与符号;外螺纹;内螺纹;螺距;梯形螺纹;螺纹;英制梯形螺纹;直径
【英文主题词】:specifications;diameters;diameter;screwthreads;threads;externalthreads;internalthreads;threadpitch;designations;dimensions;acmethreads;trapezoidalthreads;designation
【摘要】:
【中国标准分类号】:J04
【国际标准分类号】:
【页数】:2P;A4
【正文语种】:其他