DIN 6868-2-1985 X光诊断中的照片质量保证.照片处理.视觉光密度的稳定性检验
作者:标准资料网 时间:2024-05-21 01:36:45 浏览:8752
来源:标准资料网
【英文标准名称】:ImagequalityassuranceinX-raydiagnostics;filmprocessing;routinetestingofthevisualopticaldensity
【原文标准名称】:X光诊断中的照片质量保证.照片处理.视觉光密度的稳定性检验
【标准号】:DIN6868-2-1985
【标准状态】:作废
【国别】:德国
【发布日期】:1985-02
【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】:辐射学;质量保证;材料的光学性质;试验;密度;X射线诊断学;图象质量;医学科学;医疗放射照相术;图例;射线摄影胶片;辐射摄影术;检验;显影
【英文主题词】:opticalpropertiesofmaterials;radiographicfilm;inspection;x-raydiagnostics;radiology;radiography;medicalradiography;medicalsciences;imagequality;density;qualityassurance;testing;developing(ph
【摘要】:
【中国标准分类号】:C43
【国际标准分类号】:37_040_20;11_040_50
【页数】:4P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforDeterminationofThermogravimetric(TGA)AirReactivityofBakedCarbonAnodesandCathodeBlocks
【原文标准名称】:测定碳阳极和阴极块的热重(TGA)气体反应性的标准试验方法
【标准号】:ASTMD6559-2000a(2005)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D02.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:测定;电极;试验;空气;活性;阳极;碳;热重分析法;阴极;煤;块材;电化学
【英文主题词】:airreactivity;anode;cathodeblock;dusting
【摘要】:Theairreactivityratesareusedtoquantifythetendencyofacarbonartifacttoreactwithair.Carbonconsumedbythisunwantedsidereactionisunavailablefortheprimaryreactionsofreducingaluminatotheprimarymetal.Airreactivitydustingrateisusedbysomecompaniestoquantifythetendencyofthecokeaggregateorbindercokeofacarbonartifacttoselectivelyreactwiththesegases.Preferentialattackofthebindercokeorcokeaggregateofacarbonartifactbythesegasescausessomecarbontofalloffordust,makingthecarbonunavailablefortheprimaryreactionofreducingaluminaand,moreimportantly,reducingtheefficiencyofthealuminumreductioncell.Comparisonofairreactivityanddustingratesisusefulinselectingrawmaterialsforthemanufactureofcommercialanodesforspecificsmeltingtechnologiesinthealuminumreductionindustry.Airreactivityratesareusedforevaluatingeffectivenessandbeneficiationprocessesorforresearchpurposes.1.1Thistestmethodcoversthethermogravimetric(TGA)determinationofairreactivityanddustingofshapedcarbonanodesandcathodeblocksusedinthealuminumreductionindustry.Theapparatusselectioncoversasignificantvarietyoftypeswithvariousthermalconditions,samplesizecapability,materialsofconstruction,andproceduresfordeterminingthemasslossandsubsequentrateofreaction.Thistestmethodstandardizesthevariablesofsampledimensions,reactiontemperature,gasvelocityovertheexposedsurfaces,andreactiontimesuchthatresultsobtainedondifferentapparatusesarecorrelatable.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:77_020
【页数】:5P.;A4
【正文语种】:
【英文标准名称】:Hotrolledspringsteelflatbars-Flatbars-Dimensionsandtolerancesonshapeanddimensions
【原文标准名称】:一般用途热轧弹簧扁钢棒.尺寸及形状和尺寸公差
【标准号】:BSEN10092-1-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-12-01
【实施或试行日期】:2003-12-01
【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】:
【英文主题词】:
【摘要】:ThisPartofthisEuropeanStandardspecifiesthenominaldimensionsandthetolerancesondimensionsandshapesofhotrolledsteelflatbarsforspringswiththreedifferenttypesofprofiles(A,B,andC).FormulasforcalculationthemomentofinertiaarespecifiedinannexA.ThisstandardisapplicableonlytospringsteelflatbarsproducedfromsteelgradesspecifiedinEN10089.
【中国标准分类号】:H44
【国际标准分类号】:77_140_25;77_140_60
【页数】:18P;A4
【正文语种】:英语
