NF E48-039-2006 液压传动.液压缸.装有轴承环的活塞密封壳.尺寸和公差
时间:2024-05-20 11:51:41 来源: 标准资料网 作者：标准资料网 阅读：8640
【英文标准名称】:Hydraulicfluidpower-Cylinders-Pistonsealhousingsincorporatingbearingrings-Dimensionsandtolerances.
【原文标准名称】:液压传动.液压缸.装有轴承环的活塞密封壳.尺寸和公差
【标准号】:NFE48-039-2006
【标准状态】:现行
【国别】:法国
【发布日期】:2006-12-01
【实施或试行日期】:2006-12-20
【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】:轴承箱;尺寸公差;尺寸;烧瓶;流体动力缸;流体;箱;液压缸;液压设备;液压传动;液压传动系统;水力学;机械工程;活塞环;活塞;密封环;密封件;公差(测量)
【英文主题词】:
【摘要】:
【中国标准分类号】:J20
【国际标准分类号】:21_140
【页数】:7P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodsforImpactResistanceofRigidPoly(VinylChloride)(PVC)BuildingProducts
【原文标准名称】:刚性聚(氯乙烯)建筑产品的耐撞击性能的标准试验方法
【标准号】:ASTMD4226-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D20.24
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:brittlefailureenergy;buildingproducts;failureenergy;fallingweight;impacttest;Impactresistance--plastics;Impacttesting--plastics;Plasticsheetandfilm;Rigidplastics
【摘要】:Theimpactstrengthvaluesobtainedontheflatsectionsofabuildingproductprofilearerelevantonlytotheflatsectionthathasbeentestedandthesevaluesdonotnecessarilyindicatetheimpactresistanceofthewholeproduct,whichisaffectedbytheconfigurationoftheprofile(thatis,corners,ribs,etc).Constantweightandvariableheight,employedinthesetestmethods,allowthevelocityofimpacttovaryand,therefore,byProcedureB,candeterminetheenergyofductile-to-brittletransition,whichcannotbedeterminedifavariableweightisdroppedfromaconstantheight.Thesetestprocedureshavebeenfoundtobeusefulelementsinrigidpoly(vinylchloride)(PVC)buildingproductcharacterization.Compoundqualification,finishedproductqualitycontrol,environmentalandweatherabilityresearchanddevelopmentstudies,andfabricationtolerancepredictionconstituteusefulapplications.Choiceofthespecificimpactorheadconfigurationusedisrelatedtoavarietyofproductattributes,suchasspecimenthicknessandproducttoughnessaswellasabstractfactors,suchastheanticipatedmodeoffailureinaspecificapplication.Thegeometricuniquenessoftheimpactorheadconfigurationspreventsanycomparisonorcorrelationoftestingresultsonsamplestestedwithdifferingimpactorheadconfigurations.Ingeneral,theconicalimpactor,C.125,isusefultoensurefailureofthickerspecimenswheretheH.25impactorcausednofailure.Note28212;Equivalentsurfaceconditionsaremorelikelytooccurwhenspecimensarepreparedbycompressionmoldingorextrusionthanbyinjectionmolding.Whencomparingdifferentsamplestestedwiththesameimpactorheadconfiguration,impactresistanceshallbepermittedtobenormalizedforaveragespecimenthicknessoverareasonablybroadrange(forexample,1to3mm).However,thisshouldonlybedonewhenthesurfaceconditionslistedin6.1areessentiallyequivalent.1.1Thesetestmethodscoverthedeterminationoftheenergyrequiredtocrackorbreakrigidpoly(vinylchloride)(PVC)plasticsheetingandprofileflatsectionsusedinbuildingproducts,aswellasextrudedormoldedtestsamples,underspecifiedconditionsofimpactfromafreefallingstandardweightstrikinganimpactorwitheitheroftwoconfigurationsincontactwiththespecimen.1.2Twotestproceduresareincluded:1.2.1ProcedureA,usedtodetermineminimumimpactenergyrequiredtocausefailure(hole,crack,split,shatter,ortear).1.2.2ProcedureB,usedtodetermineminimumimpactenergyrequiredtocausebrittlefailure.1.3Thevaluesininch-poundunitsaretoberegardedasthestandard.Note18212;ThereisnosimilarorequivalentISOstandard.1.4Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excluding,thoseintablesinfigures)shallnotbeconsideredasrequirementsofthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection8.
【中国标准分类号】:Q22
【国际标准分类号】:83_080_20
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:Determinationof"fixedash"ofcaseins;referencemethod
【原文标准名称】:干酪素的化合灰分测定.参考法
【标准号】:DIN10451-1983
【标准状态】:现行
【国别】:德国
【发布日期】:1983-03
【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】:试验;食品;食品检验;灰分;牛奶;乳制品;定义;酪蛋白
【英文主题词】:Ashes;Casein;Chemicalanalysisandtesting;Dairyproducts;Definition;Definitions;Determinationofcontent;Foodproducts;Foodtesting;Gravimetricanalysis;Milk;Referencemethods;Testing
【摘要】:Determinationof?fixedashofcaseins;referencemethodDéterminationdes?cendresfixesdanslescaséines;méthodederéférenceZusammenhangmitdervonderInternationalOrganizationforStandardization(ISO)herausgegebenenInternationalenNormISO
【中国标准分类号】:X04
【国际标准分类号】:67_100_01
【页数】:3P;A4
【正文语种】:德语