热门站点| 世界资料网 | 专利资料网 | 世界资料网论坛
收藏本站| 设为首页| 首页

ASTM D4245-2008 工作温度为90℃干/75℃湿的电线和电缆的耐臭氧热塑性合成橡胶绝缘的标准规范

作者:标准资料网 时间:2024-05-20 10:36:37  浏览:9514   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:StandardSpecificationforOzone-ResistantThermoplasticElastomerInsulationForWireandCable,90176CDry/75176CWetOperation
【原文标准名称】:工作温度为90℃干/75℃湿的电线和电缆的耐臭氧热塑性合成橡胶绝缘的标准规范
【标准号】:ASTMD4245-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D09.18
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:acceleratedwaterabsorption;acvoltagetest;dcvoltagetest;insulation;insulationresistance;90&x00B0;Cdry/75&x00B0;Cwetinsulation;ozone-resistant;thermoplasticelastomer;thermo
【摘要】:1.1Thisspecificationcoversanozone-resistantinsulatingcompoundforelectricalwireandcables14AWGandlarger.Thiscompoundconsistssubstantiallyofathermoplasticelastomer.1.2Thistypeofinsulationissuitableforcontinuousoperationatconductortemperaturesnotexceeding90x00B0;Cindrylocationsand75x00B0;Cinwetlocations.Operatingvoltagesarenottoexceed2000V.Theminimuminstallationtemperatureisx2212;40x00B0;C.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Inmanyinstancestheinsulationmaterialcannotbetestedunlessithasbeenformedaroundaconductororcable.Therefore,testsaredoneoninsulatedwireorcableinthisdocumentsolelytodeterminetherelevantpropertyoftheinsulationmaterialandnottotesttheconductororcompletedcable.
【中国标准分类号】:K15
【国际标准分类号】:29_035_20
【页数】:2P.;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:StandardGuideforPerformanceCharacterizationofDosimetersandDosimetrySystemsforUseinRadiationProcessing
【原文标准名称】:辐射处理用剂量计和剂量测量系统性能特征描述的标准指南
【标准号】:ASTME2701-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【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】:E10.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:absorbeddose;designofexperiments;dosimeter;dosimetrysystem;electronbeam;gammaradiation;influencequantity;ionizingradiation;irradiation;performancecharacterization;photons;radiationprocessing;X-radiation
【摘要】:Ionizingradiationproducesphysicalorchemicalchangesinmanymaterialsthatcanbemeasuredandrelatedtoabsorbeddose.Materialswithradiation-inducedchangesthathavebeenthoroughlystudiedcanbeusedasdosimetersinradiationprocessing.Note38212;Thescientificbasisforcommonlyuseddosimetrysystemsanddetaileddescriptionsoftheradiation-inducedinteractionsaregiveninICRUReport80.Beforeamaterialcanbeconsideredforuseasadosimeter,certaincharacteristicsrelatedtomanufactureandmeasurementofitsresponsetoionizingradiationneedtobeconsidered,including:theabilitytomanufacturebatchesofthematerialwithevidencedemonstratingareproducibleradiation-inducedchange,nbsp;nbsp;nbsp;theavailabilityofinstrumentationformeasuringthischange,andtheabilitytotakeintoaccounteffectsofinfluencequantitiesonthedosimeterresponseandonthemeasuredabsorbed-dosevalues.Dosimeter/dosimetrysystemcharacterizationisconductedtodeterminetheperformancecharacteristicsforadosimeter/dosimetrysystemrelatedtoitscapabilityformeasuringabsorbeddose.Theinformationobtainedfromdosimeter/dosimetrysystemcharacterizationincludesthereproducibilityofthemeasuredabsorbed-dosevalue,theusefulabsorbed-doserange,effectsofinfluencequantities,andtheconditionsunderwhichthedosimeterscanbecalibratedandusedeffectively.Note48212;Whendosimetrysystemsarecalibratedundertheconditionsofuse,effectsofinfluencequantitiesmaybeminimizedoreliminated,becausetheeffectscanbeaccountedfororincorporatedintothecalibrationmethod(seeISO/ASTMGuide51261).nbsp;nbsp;nbsp;Theinfluencequantitiesofimportancemightdifferfordifferentradiationprocessingapplicationsandfacilities.Forreferencestostandardsdescribingdifferentapplicationsandfacilities,seePracticeE2628.ClassificationofadosimeterasatypeIdosimeteroratypeIIdosimeter(seePracticeE2628)isbasedonperformancecharacteristicsrelatedtotheeffectsofinfluencequantitiesobtainedfromdosimeter/dosimetrysystemcharacterization.nbsp;nbsp;nbsp;Thedosimetermanufacturerorsupplierisresponsibleforprovidingaproductthatmeetstheperformancecharacteristicsdefinedinproductspecifications,certificatesofconformance,orsimilartypesofdocuments.Dosimeterspecificationsshouldbedevelopedbasedondosimeter/dosimetrysystemcharacterization.Theuserhastheresponsibilityforensuringthatthedosimetryrequirementsforthespecificapplicationsaremetandthatdosimeter/dosimetrysystemcharacterizationinformationhasbeenconsideredin:determiningthesuitabilityofthedosimeterordosimetrysystemforthespecificapplication(seePracticeE2628),nbsp;nbsp;nbsp;selectingthecalibrationmethod(seeISO/ASTMGuide51261),establishingdosimetrysystemoperationalprocedures(seerespectivedosimetrysystempracticelistedinPracticeE2628),andnbsp;nbsp;nbsp;estimatingtheuncertaintycomponentsinthemeasureddosevalues(seeISO/ASTMGuide51707).Dosimeter/dosimetrysystemcharacterizationinformationprovidedbymanufacturersorsuppliers,oravailableintheliterature,shouldbereviewedbytheusertodeterminetheteststhatshouldbeperformedpriortotheuseofthedosimeterordosimetrysystem.Informationonperformancecharacteristicsshouldbeverifiedbeforeusing.1.1Thisguideprovidesguidanceondeterminingtheperformancecharacteristicsofdosimetersanddosimetrysystemsusedinradiationprocessing.1.2Thisguidedescribestheinfl......
【中国标准分类号】:F74
【国际标准分类号】:17_240
【页数】:10P.;A4
【正文语种】:


MIL-C-13486/8, MILITARY SPECIFICATION SHEET CABLE, SPECIAL PURPOSE, ELECTRICAL: LOW TENSION, HEAVY DUTY MULTIPLE CONDUCTORS UNSHIELDED (2 JUN 1964)., the complete requirements for procuring the cable described herein shall consist of this document and the issue in effect of Specification MIL-C-13486.

版权声明:所有资料均为作者提供或网友推荐收集整理而来,仅供爱好者学习和研究使用,版权归原作者所有。
如本站内容有侵犯您的合法权益,请和我们取得联系,我们将立即改正或删除。
京ICP备14017250号-1