【英文标准名称】:StandardSpecificationforStructuralBolts,AlloySteel,HeatTreated,150ksiMinimumTensileStrength
【原文标准名称】:最小抗拉强度为150ksi的热处理合金钢制结构用螺栓标准规范
【标准号】:ASTMA490-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:F16.02
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:bolts;alloysteel;steel;structural;weatheringsteel;Alloysteelboltingmaterials--specifications;Boltedconstructionmaterials/applications--specifications;Fasteners(metal)--specifications;Steelboltingmaterials--specifications;Struct
【摘要】:1.1Thisspecificationcoverstwotypesofquenchedandtempered,alloysteel,heavyhexstructuralboltshavingatensilestrengthof150to173ksi.1.2Theseboltsareintendedforuseinstructuralconnections.TheseconnectionsarecoveredundertherequirementsoftheSpecificationforStructuralJointsUsingSpecificationA325orA490bolts,approvedbytheResearchCouncilonStructuralConnections;endorsedbytheAmericanInstituteofSteelConstructionandbytheIndustrialFastenerInstitute.1.3Theboltsarefurnishedinsizesx00BD;to1x00BD;in.,inclusive.Theyaredesignatedbytypedenotingchemicalcompositionasfollows:
【中国标准分类号】:J13
【国际标准分类号】:21_060_10
【页数】:6P.;A4
【正文语种】:英语


【英文标准名称】:Waterquality-Evaluationofgenotoxicitybymeasurementoftheinductionofmicronuclei-Part2:MixedpopulationmethodusingthecelllineV79(ISO21427-2:2006);EnglishversionofDINENISO21427-2:2009-08
【原文标准名称】:水质.通过微核诱变测量进行遗传毒性评估.第2部分:利用V79细胞系的混合种群法(ISO21427-2:2006),英文版本DINENISO21427-2:2009-08
【标准号】:DINENISO21427-2-2009
【标准状态】:现行
【国别】:德国
【发布日期】:2009-08
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:染色体;定义;耐久性;测定;过滤;;;;地下水;保健;健康数据文件;在实验室条件下;在体外;微生物分析;饮用水;污水;监督(认可);试验;测试;痕量元素分析;毒性;验证;水;水质分析;水常规;水常规(实验);水质;水试样;水质测试;水质试验
【英文主题词】:Chromosomes;Definitions;Determination;Filtration;Genotoxic;Genotoxicalmaterials;Genotoxicity;Groundwater;Healthprotection;Invitro;Microbiologicalanalysis;Potablewater;Sewage;Surveillance(approval);Testing;Toxicity;Verification;Water;Wateranalysis;Waterpractice;Waterquality;Watersamples;Watertesting
【摘要】:ThispartofISO21427specifiesamethodforthedeterminationofgenotoxicityofwaterandwastewaterusingamammalianinvitrotestwhichdetectsdamage,inducedbywater-solublesubstances,tothechromosomesorthemitoticapparatusofV79cellsfromtheChinesehamster.Themicronucleustestallowstheidentificationofsubstancesthatcausecytogeneticdamagewhichresultsintheformationofmicronucleicontaininglaggingchromosomefragmentsand/orwholechromosomes.Theassayisbasedontheincreaseinthefrequencyofmicronucleatedcellsafterincubationwithandwithoutmetabolicactivation.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:27P.;A4
【正文语种】:英语