【英文标准名称】:Graphicalsymbolsforuseintheelectrotechnicalfield;protection,warning,calling,additionalsigns
【原文标准名称】:电工设备用图形符号.保护标志警告标志.呼叫标志补充标志
【标准号】:DIN40100-8-1987
【标准状态】:作废
【国别】:德国
【发布日期】:1987-08
【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】:安全装置;作标记;图形符号;电气工程;符号;警告装置;安全工程
【英文主题词】:safetyengineering;graphicsymbols;symbols;warningdevices;safetydevices;electricalengineering;marking
【摘要】:
【中国标准分类号】:K08;K04
【国际标准分类号】:01_080_30
【页数】:4P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforBreakingTenacityofWoolFibers,FlatBundleMethod-1/8-in.(3.2-mm)GageLength
【原文标准名称】:毛纤维抗断裂强度的试验方法.平列纤维束法.1/8in(3.2mm)规范长度的标准试验方法
【标准号】:ASTMD2524-1995(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【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】:D13.13
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:breakingtenacity;fibers;wool;Woolandwooltop--breakingstrength
【摘要】:TestMethodD2524fortestingwoolfibersfortenacityisconsideredsatisfactoryforacceptancetestingwhentheparticipatinglaboratories,usingareferencewool,haveshownacceptablebetween-laboratoryprecision.Itisrecommendedthatanyprogramofacceptancetestingbeprecededbyaninterlaboratorycheckinthelaboratoryofthepurchaserandthelaboratoryoftheselleronreplicatespecimensofsamplesofthematerialtobeevaluated.Incasesofdispute,thestatisticalbias,ifany,betweenthelaboratoryofthepurchaserandthesellershouldbedeterminedwitheachcomparisonbeingbasedontestingrandomizedspecimensfromonesampleofmaterialofthetypebeingevaluated.Valuesobtainedfromflatbundletenacityshowagoodcorrelationwithvaluesobtainedfromsinglefibertestsandrequiremuchlesstime.ThebasicdifferencesbetweentheproceduresdescribedinTestMethodD2524andthosedescribedinTestMethodD1294lieinthemannerofclampingthebundlesandtheshortergagelengthemployed.Thespecialclampsusedinthismethodallowquickerandeasierbundlepreparation;however,forTestMethodD1294nospecialclampsarerequired.CloseragreementwithsinglefibertenacityisalsoobtainedwithTestMethodD2524thanwhenusingtheprocedureinTestMethodD1294.Astheobservedtenacityoffibersdependsinpartonthetypeoftensiletestingmachineusedandthetimerequiredtobreakthespecimen,resultsobtainedwiththedifferenttypesofmachineswhichmaybeusedinthismethodwillnotnecessarilyagree.ThemachinesspecificallydesignedforbundletestingareCRLtesterswhichoperateataloadingrateof1kgf/sandthereforereachthebreakingforceatvariabletimesintheorderof5s.CREandCRTtypemachineswouldbeexpectedtoproducesomewhatdifferentresultsnotonlybecauseoftheinherentdifferenceinoperationbutbecauseCREandCRTtypemachinesaretobeoperatedataratetoachievethebreakingloadin20s.1.1Thistestmethodcoversthedeterminationofthebreakingtenacityofwoolfibersasaflatbundlewitha1/8-in.(3.2-mm)clampseparation.1.2Thistestmethodisespeciallyadaptedtothefiberbundleclampsandstrengthtestinginstrumentsspecified,butmaybeusedonothertensiletestingmachineswhenequippedwithappropriateadapterstoaccommodatetheprescribedclamps.1.3Thistestmethodisapplicabletowoolinanyformwhichcanbehand-combedintosmallbundlesofparallelizedfibers.Note18212;OthertestmethodsformeasuringbreakingtenacityoffiberbundlesincludeTestMethodsD1294,D1445,andD540.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.5Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIunitsinparenthesesareprovidedforinformationonly.
【中国标准分类号】:W20
【国际标准分类号】:59_060_10
【页数】:4P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 标准维氏硬度块 |
| 中标分类： |
仪器、仪表 >>
试验机与无损探伤仪器 >>
金属材料试验机 |
| 替代情况： | 被GB/T 4340.3-1999代替 |
| 发布日期： | 1900-01-01 |
| 实施日期： | 1987-12-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 6页 |
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： 仪器 仪表 试验机与无损探伤仪器 金属材料试验机