SJ 20369-1993 军用电子测试设备通用规范 总则
作者:标准资料网 时间:2024-05-09 00:38:14 浏览:8220
来源:标准资料网
基本信息
标准名称: | 军用电子测试设备通用规范 总则 |
英文名称: | General specification for military electronic test equipment-General |
中标分类: |
化工 >>
化工综合 >>
技术管理 |
替代情况: | 被GJB 3947-2000代替 |
发布日期: | 1993-05-11 |
实施日期: | 1993-07-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
页数: | 9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: 化工 化工综合 技术管理
【英文标准名称】:TestMethodforResistancetoBendingofPaperandPaperboard(Taber-TypeTesterinBasicConfiguration)
【原文标准名称】:纸和纸板耐弯曲试验方法(Taber式试验机)
【标准号】:ANSI/ASTMD5342-1997
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【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】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:硬挺度;纸
【英文主题词】:Bendingmoment;Paper;Stiffness
【摘要】:Thistestmethodcoversaprocedureusedtomeasuretheresistancetobendingofpaperandpaperboard.Thebendingmomentrequiredtodeflectthefreeendofa38-mm(1.5-in.)wideverticallyclampedspecimen15?fromitscenterlinewhentheloadisapplied50mm(1.97in.)awayfromtheclampisdetermined.Theresistancetobendingiscalculatedfromthebendingmoment.Someinstrumentsofthetypedescribedinthistestmethod(seeSection6)maybeequippedwithultrasensitiveattachmentsormaybemodifiedtoaccommodateshorterspecimenlengthsthanthatspecifiedinthistestmethod(seeSection9).TestMethodD5650describesamodificationoftheinstrumentdescribedinthistestmethodformeasurementsinthe0to10Taberstiffnessrangeonly,andwhichrequiresasmallertestspecimen.Themodifiedproceduremayberecommendedforpaperswhicharelowingrammageorhighlyflexible,orboth.TestresultsobtainedusingmodificationsofthebasicTaber-typeinstrumentsuchasthatdescribedinTestMethodD5650havebeenreportedtobeasmuchas40%differentfromthoseobtainedusingthistestmethod,andsuchmodificationsmustnotbeusedwhenthistestmethodisspecified.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Y31
【国际标准分类号】:85_060
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodsofSamplingandTestingPulpstobeUsedintheManufactureofElectricalInsulation
【原文标准名称】:制造电绝缘材料用纸浆的取样及试验的标准试验方法
【标准号】:ASTMD3376-1988(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1988
【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】:D09.19
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:airresistanceashanalysis;ashcontent;apparentdensity;bulkcharacteristics;burstingstrength;cellulose;cellulosicfiber;conductivity;dirt;disintegration;extractableacidity-alkalinity;extractablechlorides;fiberanalysis;fiberl
【摘要】:Theconductivityofthewaterextractofelectricalgradepulpresultsfromelectrolyticimpuritiesinthepulpwhichmaybepresentasionizableacids,bases,salts,oracombinationofthese.Thepresenceofelectrolyticimpuritiesinelectricalinsulationisundesirableastheytendtolowerinsulationresistanceandhavecorrosion-producingtendenciesunderconditionsofappliedpotential.Whencomparingtestdataitshouldbenotedthattheextractconductivityofpulps,especiallythoseofhighpurity,maychangewithtimeaftermanufacturing.Thistestisusefulforroutineacceptancetesting,thecomparisonofdifferentpulps,andresearchwork.1.1Thesetestmethodscoverthesamplingandtestingofcellulosicpulpsforuseinthemanufactureofelectricalinsulatingpapersandboardsorinthedirectapplicationofpulpfibersasinsulationtoelectricalconductors.Note18212;Thesignificanceofanyonepulppropertytestmethod,assetforthherein,shouldbeconsideredwithdiscretiondependingontheproductmadefromthepulp.1.2SectionsonReagents,Sampling,andReportareintegralpartsofeachoftheindividualtestmethodsthatfollow.1.3Eachtestmethodisdescribedasbeingameasureofeitherabulkpropertyofthepulporapropertyofahandsheetformedfromthepulp.
【中国标准分类号】:K15
【国际标准分类号】:85_040
【页数】:10P.;A4
【正文语种】:英语