ISO 7787-4-2002 牙科用旋转器械.切割刀具.第1部分:实验室用小型硬质合金刀具
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【英文标准名称】:Dentalrotaryinstruments-Cutters-Part4:Miniaturecarbidelaboratorycutters
【原文标准名称】:牙科用旋转器械.切割刀具.第1部分:实验室用小型硬质合金刀具
【标准号】:ISO7787-4-2002
【标准状态】:现行
【国别】:国际
【发布日期】:2002-03
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC106
【标准类型】:()
【标准水平】:()
【中文主题词】:材料;公差(测量);试验;工具;设计;铣刀;牙科旋切器;牙科学;牙科器械;尺寸;尺寸公差;硬质合金刀具;硬质合金;牙科设备;口腔外科;检验;牙科的;切削工具;规范
【英文主题词】:Carbidetools;Cuttingtools;Dental;Dentalequipment;Dentalinstruments;Dentalrotary-cuttinginstruments;Dentalsurgery;Dentistry;Design;Dimensionaltolerances;Dimensions;Hardmetals;Inspection;Materials;Millingcutters;Specification;Testing;Tolerances(measurement);Tools
【摘要】:ThispartofISO7787specifiestheshapeanddimensionalcharacteristics,numberofblades,typeoftoothingandrun-outforthetenmostcommonminiaturecarbidelaboratorycutters,whicharepredominantlyusedinthedentallaboratory.
【中国标准分类号】:C33
【国际标准分类号】:11_060_25
【页数】:20P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforLiquidLimit,PlasticLimit,andPlasticityIndexofSoils
【原文标准名称】:土壤液体极限、塑性极限和塑性指数的标准试验方法
【标准号】:ASTMD4318-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D18.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:建筑;施工材料;极限尺寸;塑性指数(土壤);土壤;试验
【英文主题词】:activity;Atterberglimits;liquidlimit;plasticityindex;plasticlimit
【摘要】:Thesetestmethodsareusedasanintegralpartofseveralengineeringclassificationsystemstocharacterizethefine-grainedfractionsofsoils(seePracticesD2487andD3282)andtospecifythefine-grainedfractionofconstructionmaterials(seeSpecificationD1241).Theliquidlimit,plasticlimit,andplasticityindexofsoilsarealsousedextensively,eitherindividuallyortogether,withothersoilpropertiestocorrelatewithengineeringbehaviorsuchascompressibility,hydraulicconductivity(permeability),compactibility,shrink-swell,andshearstrength.Theliquidandplasticlimitsofasoilanditswatercontentcanbeusedtoexpressitsrelativeconsistencyorliquidityindex.Inaddition,theplasticityindexandthepercentagefinerthan2-x03BC;mparticlesizecanbeusedtodetermineitsactivitynumber.Thesemethodsaresometimesusedtoevaluatetheweatheringcharacteristicsofclay-shalematerials.Whensubjectedtorepeatedwettinganddryingcycles,theliquidlimitsofthesematerialstendtoincrease.Theamountofincreaseisconsideredtobeameasureofashale’susceptibilitytoweathering.Theliquidlimitofasoilcontainingsubstantialamountsoforganicmatterdecreasesdramaticallywhenthesoilisoven-driedbeforetesting.Comparisonoftheliquidlimitofasamplebeforeandafteroven-dryingcanthereforebeusedasaqualitativemeasureoforganicmattercontentofasoil(seePracticeD2487).Note18212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingitandthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740,generally,areconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thesetestmethodscoverthedeterminationoftheliquidlimit,plasticlimit,andtheplasticityindexofsoilsasdefinedinSectiononTerminology.1.2Twomethodsforpreparingtestspecimensareprovidedasfollows:Wetpreparationmethod,asdescribedin.Drypreparationmethod,asdescribedin.Themethodtobeusedshallbespecifiedbytherequestingauthority.Ifnomethodisspecified,usethewetpreparationmethod.1.2.1Theliquidandplasticlimitsofmanysoilsthathavebeenallowedtodrybeforetestingmaybeconsiderablydifferentfromvaluesobtainedonnon-driedsamples.Iftheliquidandplasticlimitsofsoilsareusedtocorrelateorestimatetheengineeringbehaviorofsoilsintheirnaturalmoiststate,samplesshouldnotbepermittedtodrybeforetestingunlessdataondriedsamplesarespecificallydesired.1.3Twomethodsfordeterminingtheliquidlimitareprovidedasfollows:MethodA,MultipointtestasdescribedinSections.MethodB,One-pointtestasdescribedinSections.Themethodtobeusedshallbespecifiedbytherequestingauthority.Ifnomethodisspecified,useMethodA.1.3.1Themultipointliquidlimitmethodisgenerallymoreprecisethantheone-pointmethod.Itisrecommendedthatthemultipointmethodbeusedincaseswheretestresultsmaybesubjecttodispute,orwheregreaterprecisionisrequired.1.3.2Becausetheone-pointmethodrequirestheoperatortojudgewhenthetestspecimenisapproximatelyatitsliquidlimit,itisparticularlynotrecommendedforusebyinexperiencedoperat......
【中国标准分类号】:B10
【国际标准分类号】:93_020
【页数】:16P.;A4
【正文语种】:
【英文标准名称】:StandardGuideforObtainingDataforDeterministicFireModels
【原文标准名称】:确定性火灾模型的获取数据用标准指南
【标准号】:ASTME1591-2007
【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】:E05.33
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:空气;生物工艺学;建筑材料;燃烧特性;数据模型;密度;防火安全;指南;燃烧热;点火;质量损失;比热;术语;导热性
【英文主题词】:air/fuelratio;combustionefficiency;convectiveheattransfercoefficient;dataforfiremodels;density;emissivity;entrainmentcoefficient;firemodel;flameextinctioncoefficient;flamespreadparameter;heatofcombustion;heatofgasif
【摘要】:Thisguideisintendedprimarilyforusersanddevelopersofmathematicalfiremodels.Itisalsousefulforpeopleconductingfiretests,makingthemawareofsomeimportantapplicationsandusesforsmall-scalefiretestresults.Theguidethuscontributestoincreasedaccuracyinfiremodelcalculations,whichdependgreatlyonthequalityoftheinputdata.Theemphasisofthisguideisonzonemodelsofcompartmentfires.However,othertypesofmathematicalfiremodelsneedmanyofthesameinputvariables.Note18212;Mathematicalfiremodelsinthisguidearereferredtobytheiracronyms(see5.4).1.1Thisguidedescribesdatarequiredasinputformathematicalfiremodels.1.2Guidelinesarepresentedonhowthedatacanbeobtained.1.3Theemphasisinthisguideisoncompartmentzonefiremodels.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.5Thisfirestandardcannotbeusedtoprovidequantitativemeasures.
【中国标准分类号】:C80
【国际标准分类号】:13_220_01
【页数】:13P.;A4
【正文语种】:
