ASTM D 1646-2000 橡胶的粘度、应力张弛和预硫化特性(穆尼粘度计)的标准试验方法
作者:标准资料网 时间:2024-05-13 14:32:51 浏览:9604
来源:标准资料网
【英文标准名称】:StandardTestMethodsforRubber-Viscosity,StressRelaxation,andPre-VulcanizationCharacteristics(MooneyViscometer)
【原文标准名称】:橡胶的粘度、应力张弛和预硫化特性(穆尼粘度计)的标准试验方法
【标准号】:ASTMD1646-2000
【标准状态】:作废
【国别】:美国
【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(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;橡胶;特性
【英文主题词】:properties;rubber;testing
【摘要】:
【中国标准分类号】:G34
【国际标准分类号】:83_060
【页数】:11P;A4
【正文语种】:英语
【英文标准名称】:PerformanceCriteriaforSafeguarding
【原文标准名称】:安全防护的性能标准
【标准号】:ANSIB11.19-2003
【标准状态】:作废
【国别】:美国
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:机床;安全性;标准
【英文主题词】:Machinetools;Safety;Standards
【摘要】:Coversthesafetyperformancerequirementsastheyrelatetothedesign,installation,operationandmaintenanceofsafeguardingdevices,meansandmeasuresformachinetools.
【中国标准分类号】:J50
【国际标准分类号】:25_080_01
【页数】:
【正文语种】:英语
【英文标准名称】:StandardGuideforDeterminingDNASingle-StrandDamageinEukaryoticCellsUsingtheCometAssay
【原文标准名称】:用彗星分析法测定真核细胞中DNA单线损伤的标准指南
【标准号】:ASTME2186-2002a
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:E47.02
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:损伤;电池;核酸;遗传学
【英文主题词】:biomarker;cellular;Cometassay;DNAdamage;DNAstrandbreaks;stresseffects;toxic
【摘要】:1.1Thisguidecoverstherecommendedcriteriaforperformingasingle-cellgelelectrophoresisassay(SCG)orCometassayforthemeasurementofDNAsingle-strandbreaksineukaryoticcells.TheCometassayisaverysensitivemethodfordetectingstrandbreaksintheDNAofindividualcells.ThemajorityofstudiesutilizingtheCometassayhavefocusedonmedicalapplicationsandhavethereforeexaminedDNAdamageinmammaliancellsinvitroandinvivo(1-4).ThereisincreasinginterestinapplyingthisassaytoDNAdamageinfreshwaterandmarineorganismstoexploretheenvironmentalimplicationsofDNAdamage.1.1.1TheCometassayhasbeenusedtoscreenthegenotoxicityofavarietyofcompoundsoncellsinvitroandinvivo(5-7),aswellastoevaluatethedose-dependentanti-oxidant(protective)propertiesofvariouscompounds(3,8-11).Usingthismethod,significantlyelevatedlevelsofDNAdamagehavebeenreportedincellscollectedfromorganismsatpollutedsitescomparedtoreferencesites(12-15).StudieshavealsofoundthatincreasesincellularDNAdamagecorrespondwithhigherordereffectssuchasdecreasedgrowth,survival,anddevelopment,andcorrelatewithsignificantincreasesincontaminantbodyburdens(13,16).1.2ThisguidepresentsprotocolsthatfacilitatetheexpressionofDNAalkalinelabilesingle-strandbreaksandthedeterminationoftheirabundancerelativetocontrolorreferencecells.TheguideisageneralonemeanttofamiliarizelabpersonnelwiththebasicrequirementsandconsiderationsnecessarytoperformtheCometassay.Itdoesnotcontainproceduresforavailablevariantsofthisassay,whichallowthedeterminationofnon-alkalinelabilesingle-strandbreaksordouble-strandedDNAstrandbreaks(8),distinctionbetweendifferentcelltypes(13),identificationofcellsundergoingapoptosis(programmedcelldeath,(1,17)),measurementofcellularDNArepairrates(10),detectionofthepresenceofphotoactiveDNAdamagingcompounds(14),ordetectionofspecificDNAlesions(3,18).1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.1.3Thisguideisarrangedasfollows:SectionScope1ReferencedDocuments2Terminology3SummaryofGuide4SignificanceandUse5EquipmentandReagents6AssayProcedures7TreatmentofData8ReportingData9Keywords10AnnexA1References
