【英文标准名称】:Rubberandplasticshosesandhoseassemblieswithwirereinforcements-Hydraulicimpulsetestwithflexing
【原文标准名称】:钢丝增强的橡胶和塑料软管及软管组件.弯曲液压脉冲试验
【标准号】:BSENISO6802-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2008-12-31
【实施或试行日期】:2008-12-31
【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】:弯曲试验;弯曲;柔性管;软管组件;软管;液压软管;水力试验;塑料;塑料软管;塑料制品;压力试验;脉动流动;脉动试验;增强塑料;橡胶软管;橡胶制品;试验;硫化橡胶;金属芯;钢丝
【英文主题词】:Bendtesting;Bending;Flexiblepipes;Hoseassemblies;Hoses;Hydraulichoses;Hydraulictests;Plastics;Plasticshose;Plasticsproducts;Pressuretests;Pulsatingflow;Pulsetests;Reinforcedplastics;Rubberhoses;Rubberproducts;Testing;Vulcanizedrubber;Wirecores;Wires
【摘要】:ThisInternationalStandarddescribesapressureimpulsetestwithflexingforwire-reinforcedrubberandplasticshydraulichosesandhoseassemblies.Thetestisapplicabletohigh-pressurehydraulichosesandhoseassemblies,whicharesubjecttopulsatingpressureinservice.ThisInternationalStandarddescribestwomethodsofflexingthehoseorhoseassembly.TheactualpressureimpulsetestisdescribedinISO6803.
【中国标准分类号】:G42
【国际标准分类号】:23_040_70
【页数】:14P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforFisherNumberofMetalPowdersandRelatedCompounds
【原文标准名称】:测定金属粉末和相关化合物的费歇尔值的标准试验方法
【标准号】:ASTMB330-2007
【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】:B09.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:金属粉末;金属;粒度测量;测试
【英文主题词】:envelope-specificsurfacearea;FisherNumber;metalpowder;particlesize;porosity;powder;specificsurface
【摘要】:Thistestmethodprovidesaprocedurefordeterminingtheenvelope-specificsurfaceareaofpowders,fromwhichiscalculatedanx201C;averagex201D;particlediameter,assumingtheparticlesaremonosize,smoothsurface,nonporous,sphericalparticles.Forthisreason,valuesobtainedbythistestmethodwillbedefinedasaFisherNumber.Thedegreeofcorrelationbetweentheresultsofthistestmethodandthequalityofpowdersinusewillvarywitheachparticularapplicationandhasnotbeenfullydetermined.Thistestmethodisgenerallyapplicabletoallmetalpowdersandrelatedcompounds,includingcarbides,nitrides,andoxides,forparticleshavingdiametersbetween0.5and50x03BC;m.Itshouldnotbeusedforpowderscomposedofparticleswhoseshapeistoofarfromequiaxed,thatis,flakesorfibers.Inthesecases,itispermissibletousethetestmethoddescribedonlybyagreementbetweenthepartiesconcerned.Thistestmethodshallnotbeusedformixturesofdifferentpowdersnorforpowderscontainingbindersorlubricants.Whenthepowdercontainsagglomerates,themeasuredsurfaceareamaybeaffectedbythedegreeofagglomeration.Methodsofde-agglomerationsuchasthatreferencedin1.1maybeusedifagreeduponbetweenthepartiesconcerned.Whenanx201C;averagex201D;particlesizeofpowdersisdeterminedusingtheFishersub-sievesizer,itshouldbeclearlykeptinmindthatthisaveragesizeisderivedfromthedeterminationofthespecificsurfaceareaofthepowderusingarelationshipthatistrueonlyforpowdersofuniformsizeandsphericalshape.1.1Thistestmethodusesairpermeabilitytodetermineanenvelope-specificsurfaceareaanditsassociatedaverageequivalentsphericaldiameter(from0.5to50m)ofmetalpowdersandrelatedcompounds.Thepowdersmaybeanalyzedintheir"as-supplied"(shipped,received,orprocessed)conditionoraftertheyhavebeende-agglomeratedormilledbyalaboratoryprocedure("labmilled")suchasthatspecifiedinPracticeB859.Thevaluesobtainedarenotintendedtobeabsolutebutaregenerallyusefulonarelativebasisforcontrolpurposes.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H71
【国际标准分类号】:77_160
【页数】:5P.;A4
【正文语种】: