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BS EN ISO 10644-2009 带平垫圈的螺钉和垫圈组件.垫圈硬度等级200HV和300HV

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【英文标准名称】:Screwandwasherassembliesmadeofsteelwithplainwashers-Washerhardnessclasses200HVand300HV
【原文标准名称】:带平垫圈的螺钉和垫圈组件.垫圈硬度等级200HV和300HV
【标准号】:BSENISO10644-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-07-31
【实施或试行日期】:2009-07-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:验收规范;交货条件;设计;名称与符号;尺寸规格;紧固件;硬度;硬度等级;锁定装置及定位装置;锁紧装置;作标记;米制的;安装材料;平头螺钉;螺钉锁紧装置;螺钉垫圈组件;螺钉;钢;螺纹;垫圈
【英文主题词】:Acceptancespecification;Deliveryconditions;Design;Designations;Dimensions;Fasteners;Hardness;Hardnessclasses;Lockingandlocatingdevices;Lockingdevices;Marking;Metric;Mountingmaterials;Panheadscrews;Screwlockingdevices;Screw-and-washerassemblies;Screws(bolts);Steels;Threads;Washers
【摘要】:ThisInternationalStandardspecifiestherequirementsformetricscrewandplainwasherassembliesmadeofsteelwithcoarsethreadM2toM12inclusive,flatseatingheads,propertyclassesuptoandincluding10.9andwasherhardnessclasses200HVor300HV.Theplainwashersarecaptive,i.e.preventedfromdisassemblyandfreetorotate.
【中国标准分类号】:J13
【国际标准分类号】:21_060_10;21_060_30
【页数】:14P.;A4
【正文语种】:英语


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【英文标准名称】:Rubbercompoundingingredients;carbonblack(pelletized);determinationoffinescontent
【原文标准名称】:橡胶配方配合剂.炭黑(颗粒状).细屑含量的测定
【标准号】:ISO1435-1988
【标准状态】:作废
【国别】:国际
【发布日期】:1988-08
【实施或试行日期】:1988-08-01
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC45
【标准类型】:()
【标准水平】:()
【中文主题词】:渗析;细屑;元部件;试验;含量测定;炭黑;筛选(大小);配料;橡胶
【英文主题词】:carbonblack;components;determinationofcontent;screening(sizing);testing;ingredients;sieveanalysis;tests;rubber;fines
【摘要】:
【中国标准分类号】:G49
【国际标准分类号】:6839
【页数】:2P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforMeasuringRelativeComplexPermittivityandRelativeMagneticPermeabilityofSolidMaterialsatMicrowaveFrequencies
【原文标准名称】:微波频率下固体材料相对复介电常数和磁导率测量标准试验方法
【标准号】:ASTMD5568-2001
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:D09.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:电容率;回转磁的
【英文主题词】:coaxialline;dielectricconstant;magneticpermeability;measurement;microwave;millimetre-wave;permittivity;radiofrequency;rectangularwaveguide;scatteringparameter;transmission/reflection
【摘要】:DesigncalculationsforRadioFrequency(RF),microwaveandmillimeter-wavecomponentsrequiretheknowledgeofvaluesofcomplexpermittivityandpermeabilityatoperatingfrequencies.Thistestmethodisusefulforevaluatingbatchtypeorcontinuousproductionofmaterialforuseinelectromagneticapplications.Itmaybeusedtodeterminecomplexpermittivityonlyorbothcomplexpermittivityandpermeabilitysimultaneously.1.1Thistestmethodcoversaprocedurefordeterminingrelativecomplexpermittivity(relativedielectricconstantandlossindex)andrelativemagneticpermeabilityofisotropic,reciprocal(nongyromagnetic)solidmaterials.Ifthematerialisnonmagnetic,thisproceduremaybeusedtomeasurepermittivityonly.1.2Thismeasurementmethodisvalidoverafrequencyrangeofapproximately1MHzto50GHz.Theselimitsarenotexactanddependonthesizeofthespecimen,thesizeandtypeoftransmissionlineusedasaspecimenholder,andontheapplicablefrequencyrangeofthenetworkanalyzerusedtomakemeasurements.Thelowerfrequencyislimitedbythesmallestmeasurablephaseshiftthroughaspecimen,andtheupperfrequencylimitisdeterminedbytheexcitationofhigher-ordermodesthatinvalidatesthedominant-modetransmissionlinemodel.Anynumberofdiscretemeasurementfrequenciesmaybeselectedinthisfrequencyrange.Toachievemaximummeasurementaccuracy,useofdifferenttransmissionlinesizesandtypesmayberequired.Forexample,useofa7-mmdiametercoaxialgeometrycanprovideformeasurementsfrom1MHzto18GHz.However,airgapsthatexistbetweenthespecimenandthetransmissionline'sconductorsintroduceerrorsthatmaynecessitatetheuseofalargerdiametercoaxialtransmissionlineandaseriesofrectangularwaveguidesofdifferentsizetocoverthisfrequencyrange.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:17_220_01
【页数】:15P.;A4
【正文语种】: