DIN 12254-1980 塑料实验室仪器.塞子
时间:2024-05-15 07:04:05 来源: 标准资料网 作者：标准资料网 阅读：8422
【英文标准名称】:Plasticslaboratoryware;stoppers
【原文标准名称】:塑料实验室仪器.塞子
【标准号】:DIN12254-1980
【标准状态】:现行
【国别】:德国
【发布日期】:1980-07
【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】:实验室;密封环;尺寸;塑料;实验室器皿;设计;作标记;公差;聚丙烯;聚乙烯;塞子
【英文主题词】:marking;laboratories;plastics;polyethylene;design;tolerances(measurement);dimensions;laboratoryware;polypropylene;stoppers;sealingrings
【摘要】:Plasticslaboratoryware;stoppersMatierèsenplastiquespourlaboratoire;bouchons
【中国标准分类号】:N61
【国际标准分类号】:0432
【页数】:2P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforDeterminingtheWaterWashoutCharacteristicsofLubricatingGreases
【原文标准名称】:确定润滑脂抗水洗特性的标准试验方法
【标准号】:ASTMD1264-2003e1
【标准状态】:现行
【国别】:
【发布日期】:2003
【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.G0.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:石油产品;特性;润滑剂;试验;水
【英文主题词】:grease;washout;water
【摘要】:Thistestmethodestimatestheresistanceofgreasestowaterwashoutfromballbearingsunderconditionsofthetest.Nocorrelationwithfieldservicehasbeenestablished.1.1Thistestmethodcoverstheevaluationoftheresistanceofalubricatinggreasetowashoutbywaterfromabearing,whentestedat38and79176;C(100and175176;F)undertheprescribedlaboratoryconditions.Itisnottobeconsideredtheequivalentofserviceevaluationtests.Thistestmethodmaynotbesuitableforsomegreasescontaininghighlyvolatilecomponents.1.2ThevaluesstateinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificwarningstatements,see6.3.
【中国标准分类号】:E36
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:
【英文标准名称】:StandardPracticeforTestingVariable-WavelengthPhotometricDetectorsUsedinLiquidChromatography
【原文标准名称】:液相色谱用可变波长光度探测器试验的标准规程
【标准号】:ASTME1657-1998(2006)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:E13.19
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:漂移;线性度;变量;液相色谱法;液相色谱法;VWPD可变性;长;短;定期噪声;试验可变性;实施规程;噪声级测量;光度探测器;波长准确度;波长光度探测器;波长光度探测器
【英文主题词】:linearity;noisemeasurement;photometricdetector;variablewavelength;wavelengthaccuracy
【摘要】:Althoughitispossibletoobserveandmeasureeachoftheseveralcharacteristicsofadetectorunderdifferentanduniqueconditions,itistheintentofthispracticethatacompletesetofdetectorspecificationsshouldbeobtainedunderthesameoperatingconditions.Itshouldalsobenotedthattocompletelyspecifyadetectorrsquo;capability,itsperformanceshouldbemeasuredatseveralsetsofconditionswithintheusefulrangeofthedetector.Thetermsandtestsdescribedinthispracticearesufficientlygeneralthattheymaybeusedregardlessoftheultimateoperatingparameters.Linearityandresponsetimeoftherecorderorotherreadoutdeviceusedshouldbesuchthattheydonotdistortorotherwiseinterferewiththeperformanceofthedetector.Thisrequiresadjustingthegain,damping,andcalibrationinaccordancewiththemanufacturerrsquo;directions.Ifadditionalelectronicfiltersoramplifiersareusedbetweenthedetectorandthefinalreadoutdevice,theircharacteristicsshouldalsofirstbeestablished.1.1Thispracticecoversthetestingoftheperformanceofavariable-wavelengthphotometricdetector(VWPD)usedasthedetectioncomponentofaliquid-chromatographic(LC)systemoperatingatoneormorewavelengthsintherange190to800nm.Manyofthemeasurementsaremadeat254nmforconsistencywithPracticeE685.Measurementsatotherwavelengthsareoptional.1.2Thispracticeisintendedtodescribetheperformanceofthedetectorbothindependentlyofthechromatographicsystem(staticconditions)andwithflowingsolvent(dynamicconditions).1.3Forgeneralliquidchromatographicprocedures,consultRefs(1-9).1.4Forgeneralinformationconcerningtheprinciples,construction,operation,andevaluationofliquid-chromatographydetectors,seeRefs(10,11)inadditiontothesectionsdevotedtodetectorsinRefs(1-7).1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N34
【国际标准分类号】:71_040_50
【页数】:8P.;A4
【正文语种】: