ASME BPVC CCB BPV Supplement 9-2009 ASME锅炉及压力容器规程.规程实例:CCBBPV,锅炉及压力容器,补充件9
时间:2024-05-26 07:19:59 来源: 标准资料网 作者：标准资料网 阅读：9149
【英文标准名称】:ASMEBoilerandPressureVesselCode-CodeCases:CCBBPV;BoilersandPressureVessels;Supplement9
【原文标准名称】:ASME锅炉及压力容器规程.规程实例:CCBBPV,锅炉及压力容器,补充件9
【标准号】:ASMEBPVCCCBBPVSupplement9-2009
【标准状态】:作废
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Codes;Components;Design;Materials;Pressurevessels;Safetyengineering;Specification(approval);Steamboilers;Vessels;Workingpressures
【摘要】:
【中国标准分类号】:
【国际标准分类号】:23_020_30
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodforMeasuringEarly-AgeCompressiveStrengthandProjectingLater-AgeStrength
【原文标准名称】:早期抗压强度的测量和后期强度预测用标准试验方法
【标准号】:ASTMC918/C918M-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:C09.61
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:抗压强度;早期强度;成熟度;潜在强度;预测强度
【英文主题词】:compressivestrength;early-agestrength;maturity;potentialstrength;projectedstrength
【摘要】:Thistestmethodprovidesaproceduretoestimatethepotentialstrengthofaparticulartestspecimenbaseduponitsmeasuredstrengthatanageasearlyas24h.5Theearly-agetestresultsprovideinformationonthevariabilityoftheconcreteproductionprocessforuseinprocesscontrol.Therelationshipbetweenearly-agestrengthoftestspecimensandstrengthachievedatsomelaterageunderstandardcuringdependsuponthematerialscomprisingtheconcrete.Inthistestmethod,itisassumedthatthereisalinearrelationshipbetweenstrengthandthelogarithmofthematurityindex.Experiencehasshownthatthisisanacceptableapproximationfortestagesbetween24hand28daysunderstandardcuringconditions.Theuserofthistestmethodshallverifythatthetestdatausedtodevelopthepredictionequationarerepresentedcorrectlybythelinearrelationship.Iftheunderlyingrelationshipbetweenstrengthandthelogarithmofthematurityindexcannotbeapproximatedbyastraightline,theprincipleofthistestmethodisapplicableprovidedanappropriateequationisusedtorepresentthenon-linearrelationship.Strengthprojectionsarelimitedtoconcretesusingthesamematerialsandproportionsastheconcreteusedtoestablishthepredictionequation.Note18212;Confidenceintervalsdevelopedinaccordancewith10.2arehelpfulinevaluatingprojectedstrengths.Thistestmethodisnotintendedforestimatingthein-placestrengthofconcrete.PracticeC1074providesproceduresforusingthemeasuredin-placematurityindextoestimatein-placestrength.1.1Thistestmethodcoversaprocedureformakingandcuringconcretespecimensandfortestingthematanearlyage.Thespecimensarestoredunderstandard-curingconditionsandthemeasuredtemperaturehistoryisusedtocomputeamaturityindexthatisrelatedtostrengthgain.1.2Thistestmethodalsocoversaprocedureforusingtheresultsofearly-agecompressive-strengthteststoprojectthepotentialstrengthofconcreteatlaterages.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q14
【国际标准分类号】:91_100_30
【页数】:6P.;A4
【正文语种】:
【英文标准名称】:MetricMachineScrews
【原文标准名称】:米制机用螺钉
【标准号】:ANSI/ASMEB18.6.7M-1999
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【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】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Countersunkheadscrews;Designations;Dimensions;Fasteners;Lockingandlocatingdevices;Metric;Recessedheadscrews;Screws(bolts)
【摘要】:ThisStandardcoversthecompletegeneralanddimensionaldataformetricflatcountersunk,ovalcounersunkandpanslottedandrecessedheadmachinescrews,andmetrichexandhexflangeheadmachinescrewsrecognizedasAmericanNationalStandard.
【中国标准分类号】:J13
【国际标准分类号】:21_060_10
【页数】:
【正文语种】:英语