ASTM D5288-1997(2004) 使用多电极材料测定电绝缘材料追踪摄影系数的标准试验方法

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【英文标准名称】:StandardTestMethodforDeterminingtheTrackingIndexofElectricalInsulatingMaterialsUsingVariousElectrodeMaterials(ExcludingPlatinum)
【原文标准名称】:使用多电极材料测定电绝缘材料追踪摄影系数的标准试验方法
【标准号】:ASTMD5288-1997(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】:D09.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:绝缘材料;电绝缘材料;试验
【英文主题词】:copperelectrodes;comparativetrackingindex;CTI;CTI-Cu;TI;track;tracking,contamination;trackingindex;trackingresistance
【摘要】:1.1Thistestmethodwasdevelopedusingcopperelectrodestoevaluatethelow-voltage(upto600V)trackingresistanceofmaterialsinthepresenceofaqueouscontaminants.Note18212;Atthistime,onlyindustriallaminateshavebeenexaminedusingthismethodwhichwasdevelopedattheNationalManufacturersElectricalAssociation(NEMA)laboratorylocatedattheUniversityofCincinnati.Itwasfoundthatacloserendpoint(lessscatter)wasobtainedthanwithplatinumelectrodes,andmaterialstestedtendedtoberankedbyresinsystem.1.1.1Otherelectrodematerialsmaybeconsideredforusewiththistestmethoddependingupontheapplicationoftheinsulatingmaterial.1.2ThistestmethodissimilartoTestMethodD3638,whichdeterminesthecomparativetrackingindexofmaterialsusingplatinumelectrodestoproducethetrackingonthespecimensurface.1.3Thevaluesstatedinmetric(SI)unitsarethestandard.Theinch-poundequivalentsofthemetricunitsareapproximate.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:K15
【国际标准分类号】:29_035_01
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:Generaltolerancesforcolumns;glasslinedcolumns
【原文标准名称】:蒸馏塔的通用公差.搪瓷钢衬里蒸馏塔
【标准号】:DIN28007-2-1994
【标准状态】:作废
【国别】:德国
【发布日期】:1994-01
【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】:极限偏差;长度;平整度;釉层;化工技术;公差;尺寸;化工设备;钢;尺寸公差;一般公差;化学工程;工艺工程;瓷漆的;瓷漆;塔柱(玻璃)
【英文主题词】:
【摘要】:
【中国标准分类号】:G93
【国际标准分类号】:71_120_10
【页数】:6P;A4
【正文语种】:德语


Product Code:SAE AS7949
Title:Bearings, Ball, Airframe, Antifriction, General Standard For
Issuing Committee:Acbg Rolling Element Bearing Committee
Scope:This standard covers ball bearings in the -65 to +350 掳F temperature range as specified on the applicable drawing standards.