【英文标准名称】:RoughnessComparisonSpecimens;SurfacesProducedbyCuttingwithPeriodicProfile
【原文标准名称】:粗糙度比较块.由切削产生的周期性轮廓的表面
【标准号】:DIN4769-2-1972
【标准状态】:作废
【国别】:德国
【发布日期】:1972-05
【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】:比对样品;刨削;表面;沟;彼此间隔的;生产;公差;粗糙度
【英文主题词】:tolerances(measurement);surfaces;roughness(surface);production;spaced;planing;grooves;comparisonspecimen
【摘要】:
【中国标准分类号】:A69
【国际标准分类号】:17_040_20
【页数】:3P;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodforWaterandSedimentinCrudeOilbytheCentrifugeMethod(LaboratoryProcedure)
【原文标准名称】:离心法(实验室方法)测定原油中水和沉积物的标准试验方法
【标准号】:ASTMD4007-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D02.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:centrifuge;centrifugetube;crudeoil;laboratoryprocedure;sampling;sedimentandwater;solvent;Centrifugemethod;Crudepetroleumproducts;Laboratorywatertesting;Sedimentcontent;Watercontent--crudeoil;Waterplussedimentcontent;Centrifuge
【摘要】:Thewaterandsedimentcontentofcrudeoilissignificantbecauseitcancausecorrosionofequipmentandproblemsinprocessing.Adeterminationofwaterandsedimentcontentisrequiredtomeasureaccuratelynetvolumesofactualoilinsales,taxation,exchanges,andcustodytransfers.Itisnotanticipatedthatthistestmethod,whichiswrittenwithadedicatedlaboratoryfacilityinmind,islikelytobeusedinfieldtestroomsorsampleroomsduetosafetyconcernsforproperventilationnbsp;nbsp;nbsp;andhandling.1.1Thistestmethoddescribesthelaboratorydeterminationofwaterandsedimentincrudeoilsbymeansofthecentrifugeprocedure.Thiscentrifugemethodfordeterminingwaterandsedimentincrudeoilsisnotentirelysatisfactory.Theamountofwaterdetectedisalmostalwayslowerthantheactualwatercontent.Whenahighlyaccuratevalueisrequired,therevisedproceduresforwaterbydistillation,TestMethodD4006(APIMPMSChapter10.2)(Note1),andsedimentbyextraction,TestMethodD473(APIMPMSChapter10.1),shallbeused.Note18212;TestMethodD4006(APIMPMSChapter10.2)hasbeendeterminedtobethepreferredandmostaccuratemethodforthedeterminationofwater.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specificwarningstatementsappearin6.1,8.3,andA1.5.4.
【中国标准分类号】:E20
【国际标准分类号】:75_040
【页数】:13P.;A4
【正文语种】:英语