【英文标准名称】:Fasteners;technicaldeliveryconditions;propertyclassesforcarbonsteelandalloysteelboltsandscrews;conversionofpropertyclasses
【原文标准名称】:紧固件.交货技术条件.碳钢和合金钢螺钉和螺栓性能等级.第3部分:性能等级的转换
【标准号】:DIN267-3-1983
【标准状态】:作废
【国别】:德国
【发布日期】:1983-08
【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】:紧固件;刚度;力学;材料强度;螺母;螺钉
【英文主题词】:strengthofmaterials;fasteners;mechanics;screws(bolts);rigidity;nuts
【摘要】:
【中国标准分类号】:J13
【国际标准分类号】:21_060_10
【页数】:2P;A4
【正文语种】:德语
基本信息
| 标准名称： | 涂料中汞含量的测定 固液进样直接测汞法 |
| 发布部门： | 国家质量监督检验检疫总局 |
| 发布日期： | 2011-09-09 |
| 实施日期： | 2012-04-01 |
| 首发日期： | |
| 作废日期： | |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2012-04-01 |
适用范围
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前言
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目录
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引用标准
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所属分类： 综合 社会公共安全 社会公共安全综合 信息技术 办公机械设备 字符集和信息编码
【英文标准名称】:StandardTestMethodforEnergyMeasurementforDynamicPenetrometers
【原文标准名称】:动态透度计能量测量的标准试验方法
【标准号】:ASTMD4633-2010
【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】:D18.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:energy;liquefaction;N-value;penetrometer;SPT;standardpenetrationtest;Liquefaction;Penetrometertesting;Sampling;Soil;SPT(standardpenetrationtest)
【摘要】:Variousdriveninsitupenetrometersareusedtoevaluatetheengineeringbehaviorofsoils.TheStandardPenetrationTestisthemostcommontype.EngineeringpropertiescanbeestimatedonthebasisofempiricalcorrelationsbetweenN-valuesandsoildensity,strengthorstiffness.Alternatively,theN-valuecanbeuseddirectlyinfoundationdesignusingcorrelationstodesignparameterssuchasallowablebearingpressureorpilecapacity.TheN-valuedependsonthesoilpropertiesbutalsoonthemass,geometry,stroke,anvil,andoperatingefficiencyofthehammer.ThisenergymeasurementprocedurecanevaluatevariationsofN-valueresultingfromdifferencesinthehammersystem.SeealsoRefs(1-6).Thereisanapproximate,linearrelationshipbetweentheincrementalpenetrationofapenetrometerandtheenergyfromthehammerthatentersthedrillrods,andthereforeanapproximateinverserelationshipbetweentheN-valueandtheenergydeliveredtothedrillrods.Note18212;Sincethemeasuredenergyincludestheextrapotentialenergyeffectduetothesetperblow,testsforenergyevaluationofthehammersystemsshouldbelimitedtomoderateN-valuerangesbetween10and50(Ref(7)).Stresswaveenergymeasurementsonpenetrometersmayevaluatebothoperator-dependentcatheadandropehammersystemsandrelativelyoperator-independentautomaticsystems.TheenergymeasurementhasdirectapplicationforliquefactionevaluationforsandsasreferencedinPracticeD6066.ThistestmethodisusefulforcomparingtheN-valuesproducedbydifferentequipmentoroperatorsperformingSPTtestingatthesamesite,aidingthedesignofpenetrometersystems,trainingofdynamicpenetrometersystemoperators,anddevelopingconversionfactorsbetweendifferenttypesofdynamicpenetrationtests.Note28212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetestingandinspection.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors:PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethoddescribesproceduresformeasuringtheenergythatentersthepenetrometerdrillrodstringduringdynamicpenetrometertestingofsoilduetothehammerimpact.1.2ThistesthasparticularapplicationtothecomparativeevaluationofN-valuesobtainedfromtheStandardPenetrationTests(SPT)ofsoilsinanopenholeasinTestMethodD1586andPracticeD6066.Thisproceduremayalsobeapplicabletootherdynamicpenetrometertests.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Theinch-poundunitsgiveninparenthesesaremathematicalconversionswhichareprovidedforinformationpurposesonlyandarenotconsideredstandard.1.4Limitations8212;Thistestmethodappliestopenetrometer......
【中国标准分类号】:N74
【国际标准分类号】:19_060
【页数】:7P.;A4
【正文语种】:英语