DIN ISO 11054-2006 切削工具.高速钢分组命名
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【英文标准名称】:Cuttingtools-Designationofhigh-speedsteelgroups(ISO11054:2006)EnglishversionofDINISO11054:2006-09
【原文标准名称】:切削工具.高速钢分组命名
【标准号】:DINISO11054-2006
【标准状态】:现行
【国别】:德国
【发布日期】:2006-09
【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】:化合物;切削工具;定义;名称与符号;钻头;端铣刀;等级(质量);高速钢;材料;生产;合金钢;钢;丝锥;工具钢;工具
【英文主题词】:Chemicalcomposition;Cuttingtools;Definition;Definitions;Designations;Drills;Endmills;Grades(quality);High-speedtoolsteels;Materials;Production;Steelalloy;Steels;Taps(threading);Toolsteels;Too
【摘要】:ThisInternationalStandardspecifiesthedesignationofgroupsofhigh-speedsteelsusedformanufacturinghigh-speedsteel(HSS)cuttingtoolssuchastaps,drills,endmills,etc.Itisnotintendedtospecifythecompositionofhigh-speedsteels,whichisthesubjectofISO4957.
【中国标准分类号】:J50
【国际标准分类号】:25_100_01
【页数】:6P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforAdenosineTriphosphate(ATP)ContentofMicroorganismsinWater
【原文标准名称】:水中微生物的三磷酸腺甙含量的标准试验方法
【标准号】:ASTMD4012-1981(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1981
【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】:D19.24
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Adenosinetriphosphate(ATP)content;ATPfireflymethod;Biomass;Filters/filterprocedures--watertesting;Microorganisms;Opticalmaterials/properties/tests--water;Organiccompounds--water;Pathogens--water;Photoluminescence;Sludge;Toxicity/toxicol
【摘要】:Arapidandroutineprocedurefordeterminingbiomassofthelivingmicroorganismsincultures,waters,wastewaters,andinplanktonandperiphytonsamplestakenfromsurfacewatersisfrequentlyofvitalimportance.However,classicaltechniquessuchasdirectmicroscopecounts,turbidity,organicchemicalanalyses,celltagging,andplatecountsareexpensive,time-consuming,ortendtounderestimatetotalnumbers.Inaddition,someofthesemethodsdonotdistinguishbetweenlivingandnonlivingcells.TheATPfirefly(luciferin-luciferase)methodisarapid,sensitivedeterminationofviablemicrobialbiomass.ATPistheprimaryenergydonorforlifeprocesses,doesnotexistinassociationwithnonlivingdetritalmaterial,andtheamountofATPperunitofbiomass(expressedinweight)isrelativelyconstant.(ATPpercellvarieswithspeciesandphysiologicalstateoftheorganism.)Thistestmethodcanbeusedto:Estimateviablemicrobialbiomassincultures,waters,andwastewaters.Estimatetheamountoftotalviablebiomassinplanktonandperiphytonsamples.EstimatethenumberofviablecellsinaunispeciescultureiftheATPcontent(oriftheaverageamountofATP)percellisknown.Estimateanddifferentiatebetweenzooplanktonic,phytoplanktonic,bacterial,andfungalATPthroughsizefractionationofwater,andwastewatersamples.Measurethemortalityrateofmicroorganismsintoxicitytestsinentrainmentstudies,andinothersituationswherepopulationsorassemblagesofmicroorganismsareplacedunderstress.1.1Thistestmethodcoversthemeasurementofadenosinetriphosphate(ATP)inmicroorganismsinconcentrationsnormallyfoundinlaboratorycultures,waters,wastewaters,andinplanktonandperiphytonsamplesfromwaters.1.2KnowledgeoftheconcentrationofATPcanberelatedtoviablebiomassormetabolicactivity,orbyutilizinganaverageconcentration(oramount)ofATPpercell,anestimatedcountofmicroorganismscanbeobtainedinthecaseofunispeciescultures.1.3Thistestmethodoffersahighdegreeofsensitivity,rapidity,accuracy,andreproducibility.However,extremecaremustbetakenateachstepintheanalysistoensuremeaningfulandreliableresults.1.4Theanalystshouldbeawarethattheprecisionstatementpertainsonlytodeterminationsinreagentwaterandnotnecessarilyinthematrixbeingtested.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:4P.;A4
【正文语种】:英语
【英文标准名称】:StandardforLocalandMetropolitanAreaNetworks-VirtualBridgedLocalAreaNetworks-Amendment:EnhancedTransmissionSelectionforBandwidthSharingBetweenTrafficClasses
【原文标准名称】:局域网和城域网标准.虚拟桥接局域网.修改件:通信级别间带宽共享的增强型传输选择
【标准号】:ANSI/IEEE802.1Qaz-2011
【标准状态】:现行
【国别】:美国
【发布日期】:2011
【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】:频带宽度;桥;桥(计算机网络);通信网;数据中心;数据电路;数据处理;数据传送;定义;信息技术;局部地区网络(LAN);局域网;多路存取计算机;城域网(MAN);媒体访问控制;城域网;城域;电讯;电信;虚拟的;VLAN
【英文主题词】:Bandwidths;Bridges;Bridges(computernetworks);Communicationnetworks;Datacentres;Datacircuit;Dataprocessing;Datatransfer;Definitions;Informationtechnology;LAN;Localareanetworks;MAC;MAN;Mediumaccesscontrol;Metropolitanareanetworks;Metropolitanareas;Telecommunication;Telecommunications;Virtual;VLAN
【摘要】:
【中国标准分类号】:
【国际标准分类号】:35_110
【页数】:
【正文语种】:英语
