DB37/680-2007 城镇居民用水户表计量工程技术规程
作者:标准资料网 时间:2024-05-22 17:00:37 浏览:9330
来源:标准资料网
下载地址: 点击此处下载
基本信息
| 标准名称： | 城镇居民用水户表计量工程技术规程 |
| 发布日期： | 2007-08-08 |
| 实施日期： | 2007-09-01 |
| 首发日期： | |
| 作废日期： | |
| 主管部门： | 山东省质量技术监督局 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2007-09-01 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类： 农业 林业 畜牧 养蜂 养蚕 农业 农业和林业 农业和林业综合
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodsforBendTestingofMaterialforDuctility
【原文标准名称】:材料延展性的弯曲测试的标准试验方法
【标准号】:ASTME290-1997a(2004)
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:E28.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:弯曲试验;试验;机械试验;材料;延展性;金属
【英文主题词】:bend;crack;ductility;flattenedbend;forminglimit;fracture;freebend;guidedbend;mandrel;pin;plunger;roller
【摘要】:Bendtestsforductilityprovideasimplewaytoevaluatethequalityofmaterialsbytheirabilitytoresistcrackingorothersurfaceirregularitiesduringonecontinuousbend.Noreversalofthebendforceshallbeemployedwhenconductingthesetests.Thetypeofbendtestuseddeterminesthelocationoftheforcesandconstraintsonthebentportionofthespecimen,rangingfromnodirectcontacttocontinuouscontact.Thetestcanterminateatagivenangleofbendoveraspecifiedradiusorcontinueuntilthespecimenlegsareincontact.Thebendanglecanbemeasuredwhilethespecimenisunderthebendingforce(usuallywhenthesemi-guidedbendtestisemployed),orafterremovaloftheforceaswhenperformingafree-bendtest.Productrequirementsforthematerialbeingtesteddeterminethemethodused.Materialswithanas-fabricatedcrosssectionofrectangular,round,hexagonal,orsimilardefinedshapecanbetestedinfullsectiontoevaluatetheirbendpropertiesbyusingtheproceduresoutlinedinthesetestmethods,inwhichcaserelativewidthandthicknessrequirementsdonotapply.1.1Thesetestmethodscoverbendtestingforductilityofmaterials.Includedintheproceduresarefourconditionsofconstraintonthebentportionofthespecimen;aguided-bendtestusingamandrelorplungerofdefineddimensionstoforcethemid-lengthofthespecimenbetweentwosupportsseparatedbyadefinedspace;asemi-guided-bendtestinwhichthespecimenisbent,whileincontactwithamandrel,throughaspecifiedangleortoaspecifiedinsideradius(r)ofcurvature,measuredwhileunderthebendingforce;afree-bendtestinwhichtheendsofthespecimenarebroughttowardeachother,butinwhichnotransverseforceisappliedtothebenditselfandthereisnocontactoftheconcaveinsidesurfaceofthebendwithothermaterial;abendandflattentest,inwhichatransverseforceisappliedtothebendsuchthatthelegsmakecontactwitheachotheroverthelengthofthespecimen.1.2Afterbending,theconvexsurfaceofthebendisexaminedforevidenceofacrackorsurfaceirregularity.Ifthespecimenfractures,thematerialhasfailedthetest.Whencompletefracturedoesnotoccur,thecriterionforfailureisthenumberandsizeofcracksorothersurfaceirregularityvisibletotheunaidedeyeoccurringontheconvexsurfaceofthespecimenafterbending,asspecifiedbytheproductstandard.Anycrackswithinonethicknessoftheedgeofthespecimenarenotconsideredabendtestfailure.Cracksoccurringinthecornersofthebentportionshallnotbeconsideredsignificantunlesstheyexceedthesizespecifiedforcornercracksintheproductstandard.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Inch-poundvaluesgiveninparentheseswereusedinestablishingtestparametersandareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H23
【国际标准分类号】:77_040_10(MECHANICALTESTINGOFMETALS)
【页数】:7P.;A4
【正文语种】:
【英文标准名称】:Informationtechnology-Softwareengineering-GuidelinesfortheadoptionofCASEtools
【原文标准名称】:信息技术.软件工程.CASE工具的采用指南
【标准号】:ISO/IECTR14471-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-10
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1/SC7
【标准类型】:()
【标准水平】:()
【中文主题词】:CASE;计算机程序;计算机软件;计算机;数据处理;定义;指南;信息技术;软件技术
【英文主题词】:CASE;Computerprograms;Computersoftware;Computers;Dataprocessing;Definitions;Guidelines;Informationtechnology;Softwaretechniques
【摘要】:SinceCASEadoptionisasubjectofthebroadertechnologytransitionproblem,thisTechnicalReportaddressestheadoptionpracticesappropriateforawiderangeofcomputingorganisations.ThisTechnicalReportneitherdictatesnoradvocatesparticulardevelopmentstandards,softwareprocesses,designmethods,methodologies,techniques,programminglanguages,orlife-cycleparadigms.ThisTechnicalReportwill:-identifycriticalsuccessfactors(CSF);-proposeasetofadoptionprocesses;-guidesuccessfuladoptioninconsiderationoforganisationalandculturalenvironment.Thefollowinggroupsaretargetedaspotentialaudiences:-CASEusers;-informationsystemsmanagers;-chiefinformationofficers(CIO);-CASEsuppliers;-softwareengineeringconsultants;-thoseinvolvedintheacquisitionofCASEtoolsandtechnology.ThereforethisTechnicalReportaddressesaspectsofCASEtoolsadoption.ItisbestusedwithISO/IEC14102forCASEtoolevaluationandselection.ItiscomplementarytorelatedISO/IECdocumentswhichdealwiththegeneralaspectsofthesetopics.
【中国标准分类号】:L77
【国际标准分类号】:35_080
【页数】:22P;A4
【正文语种】:英语
【原文标准名称】:材料延展性的弯曲测试的标准试验方法
【标准号】:ASTME290-1997a(2004)
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:E28.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:弯曲试验;试验;机械试验;材料;延展性;金属
【英文主题词】:bend;crack;ductility;flattenedbend;forminglimit;fracture;freebend;guidedbend;mandrel;pin;plunger;roller
【摘要】:Bendtestsforductilityprovideasimplewaytoevaluatethequalityofmaterialsbytheirabilitytoresistcrackingorothersurfaceirregularitiesduringonecontinuousbend.Noreversalofthebendforceshallbeemployedwhenconductingthesetests.Thetypeofbendtestuseddeterminesthelocationoftheforcesandconstraintsonthebentportionofthespecimen,rangingfromnodirectcontacttocontinuouscontact.Thetestcanterminateatagivenangleofbendoveraspecifiedradiusorcontinueuntilthespecimenlegsareincontact.Thebendanglecanbemeasuredwhilethespecimenisunderthebendingforce(usuallywhenthesemi-guidedbendtestisemployed),orafterremovaloftheforceaswhenperformingafree-bendtest.Productrequirementsforthematerialbeingtesteddeterminethemethodused.Materialswithanas-fabricatedcrosssectionofrectangular,round,hexagonal,orsimilardefinedshapecanbetestedinfullsectiontoevaluatetheirbendpropertiesbyusingtheproceduresoutlinedinthesetestmethods,inwhichcaserelativewidthandthicknessrequirementsdonotapply.1.1Thesetestmethodscoverbendtestingforductilityofmaterials.Includedintheproceduresarefourconditionsofconstraintonthebentportionofthespecimen;aguided-bendtestusingamandrelorplungerofdefineddimensionstoforcethemid-lengthofthespecimenbetweentwosupportsseparatedbyadefinedspace;asemi-guided-bendtestinwhichthespecimenisbent,whileincontactwithamandrel,throughaspecifiedangleortoaspecifiedinsideradius(r)ofcurvature,measuredwhileunderthebendingforce;afree-bendtestinwhichtheendsofthespecimenarebroughttowardeachother,butinwhichnotransverseforceisappliedtothebenditselfandthereisnocontactoftheconcaveinsidesurfaceofthebendwithothermaterial;abendandflattentest,inwhichatransverseforceisappliedtothebendsuchthatthelegsmakecontactwitheachotheroverthelengthofthespecimen.1.2Afterbending,theconvexsurfaceofthebendisexaminedforevidenceofacrackorsurfaceirregularity.Ifthespecimenfractures,thematerialhasfailedthetest.Whencompletefracturedoesnotoccur,thecriterionforfailureisthenumberandsizeofcracksorothersurfaceirregularityvisibletotheunaidedeyeoccurringontheconvexsurfaceofthespecimenafterbending,asspecifiedbytheproductstandard.Anycrackswithinonethicknessoftheedgeofthespecimenarenotconsideredabendtestfailure.Cracksoccurringinthecornersofthebentportionshallnotbeconsideredsignificantunlesstheyexceedthesizespecifiedforcornercracksintheproductstandard.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Inch-poundvaluesgiveninparentheseswereusedinestablishingtestparametersandareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H23
【国际标准分类号】:77_040_10(MECHANICALTESTINGOFMETALS)
【页数】:7P.;A4
【正文语种】:
【英文标准名称】:Informationtechnology-Softwareengineering-GuidelinesfortheadoptionofCASEtools
【原文标准名称】:信息技术.软件工程.CASE工具的采用指南
【标准号】:ISO/IECTR14471-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-10
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1/SC7
【标准类型】:()
【标准水平】:()
【中文主题词】:CASE;计算机程序;计算机软件;计算机;数据处理;定义;指南;信息技术;软件技术
【英文主题词】:CASE;Computerprograms;Computersoftware;Computers;Dataprocessing;Definitions;Guidelines;Informationtechnology;Softwaretechniques
【摘要】:SinceCASEadoptionisasubjectofthebroadertechnologytransitionproblem,thisTechnicalReportaddressestheadoptionpracticesappropriateforawiderangeofcomputingorganisations.ThisTechnicalReportneitherdictatesnoradvocatesparticulardevelopmentstandards,softwareprocesses,designmethods,methodologies,techniques,programminglanguages,orlife-cycleparadigms.ThisTechnicalReportwill:-identifycriticalsuccessfactors(CSF);-proposeasetofadoptionprocesses;-guidesuccessfuladoptioninconsiderationoforganisationalandculturalenvironment.Thefollowinggroupsaretargetedaspotentialaudiences:-CASEusers;-informationsystemsmanagers;-chiefinformationofficers(CIO);-CASEsuppliers;-softwareengineeringconsultants;-thoseinvolvedintheacquisitionofCASEtoolsandtechnology.ThereforethisTechnicalReportaddressesaspectsofCASEtoolsadoption.ItisbestusedwithISO/IEC14102forCASEtoolevaluationandselection.ItiscomplementarytorelatedISO/IECdocumentswhichdealwiththegeneralaspectsofthesetopics.
【中国标准分类号】:L77
【国际标准分类号】:35_080
【页数】:22P;A4
【正文语种】:英语