NF T20-082-1976 工业用化学制品.当测量数值分散的标准偏差为未知时平均值测定的取样
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【英文标准名称】:Chemicalproductsforindustrialuse.Samplinginordertodetermineameanvalueinthecasewherethebetweenunitsstandarddeviationofthemeasuredcharacteristicisunknown.
【原文标准名称】:工业用化学制品.当测量数值分散的标准偏差为未知时平均值测定的取样
【标准号】:NFT20-082-1976
【标准状态】:现行
【国别】:法国
【发布日期】:1976-03-01
【实施或试行日期】:
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:G04
【国际标准分类号】:71_040_50
【页数】:14P;A4
【正文语种】:其他
MIL-HDBK-29612/1, DEPARTMENT OF DEFENSE HANDBOOK: GUIDANCE FOR ACQUISITION OF TRAINING DATA PRODUCTS AND SERVICES (PART 1 OF 4 PARTS) (30 JUL 1999)., This part of the handbook provides guidance to Department of Defense (DoD) personnel on the procurement of training data products and services. This handbook is intended for guidance only. This handbook cannot be cited as a requirement. If it is, the contractor does not have to comply.【英文标准名称】:Prevailingtorquetypesteelhexagonnuts-Mechanicalandperformanceproperties
【原文标准名称】:有效力矩型钢六角锁紧螺母.机械和性能要求
【标准号】:BSENISO2320-1998
【标准状态】:作废
【国别】:英国
【发布日期】:1998-05-15
【实施或试行日期】:1998-05-15
【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;室温;定义;设计;名称与符号;尺寸;紧固件;热处理;六角螺母;六角头螺栓;六角头紧固件;内螺纹紧固件;防松螺母;作标记;材料;材料规范;机械性能;螺母;工作特性;性能试验;有效扭矩式;检验荷载;特性;规范(验收);钢;强度等级;测试;螺纹;扭矩
【英文主题词】:Acceptancespecification;Ambienttemperature;Definition;Definitions;Design;Designations;Dimensions;Fasteners;Heattreatment;Hexagonnuts;Hexagonalheadbolts;Hexagonal-headfasteners;Internal-threadfasteners;Locknuts;Marking;Materials;Materialsspecification;Mechanicalproperties;Nuts;Performancecharacteristics;Performancetesting;Prevailingtorquetype;Proofloading;Properties;Specification(approval);Steels;Strengthclass;Testing;Threads;Torque
【摘要】:ThisInternationalStandardspecifiesthemechanicalandperformancepropertiesforprevailingtorquetypesteelhexagonnuts(includingthosewithflange)whentestedoveranambienttemperaturerangeof10℃to35℃.Propertieswillvaryathigherandlowertemperature.Itappliestoprevailingtorquetypenuts-withnominalthreaddiametersuptoandincluding39mm;-oftriangularISOthreadaccordingtoISO68;-withdiameter/pitchcombinationsaccordingtoISO261;-withthreadtolerances6HaccordingtoISO965-2;-withspecificmechanicalrequirements;-withdimensionsasspecifiedinproductstandardsprovidedtheymakereferencetothisInternationalStandard;-withinthetemperaturerange-50℃to+300℃forallmetaltypenuts;-withinthetemperaturerange-50℃to+120℃fornon-metallicinserttypenuts.Itdoesnotapplytonutsrequiringspecialpropertieswhichmayrequirespecialmaterialsorcoatingstoimprove-weldability;-corrosionresistance;-performanceoutsidetheabovespecifiedtemperatureranges.Prevailingtorqueperformancedecreaseswithincreasingre-use.Thenutusershouldconsidertheimplicationsofdecreasedperformancepriortore-use.NOTE—Informationontorque/clampingforceperformancerequirementsandtestingaregivenintheannexC.Thesefunctionalrequirementsandtheacompanyingtestprocedurearestillunderdiscussionandcannotbespecifiedmandatorilyforthetimebeing.note:1)Bycarefulchoiceofnon-metallicmaterialshigherservicetemperaturepropertiescanbeattainedbyagree-mentbetweenuserandmanufacturer.
【中国标准分类号】:J13
【国际标准分类号】:21_060_20
【页数】:28P;A4
【正文语种】:英语
