EN 60249-2-8-1994 印制电路基材.第2部分:规范.第8号规范:软覆铜聚酯(PETP)薄膜

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【英文标准名称】:Basematerialsforprintedcircuits-Part2:Specifications;specificationNo.8:Flexiblecopper-cladpolyester(PETP)film(IEC60249-2-8:1987+A1:1993);GermanversionEN60249-2-8:1994+A1:1994
【原文标准名称】:印制电路基材.第2部分:规范.第8号规范:软覆铜聚酯(PETP)薄膜
【标准号】:EN60249-2-8-1994
【标准状态】:现行
【国别】:
【发布日期】:1994-09
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:印制电路;聚脂薄膜;聚对苯二甲酸乙二醇酯;聚对苯二甲酸乙酯;材料规范;电子工程;规范;电路;印制电路板;聚酯;塑料;柔性材料;铜;塑料薄膜;电子设备及元件;技术数据单;半导体工艺;覆铜的;箔;基底材料;电气工程;质量;纸;特性;作标记;试验;材料;规范(验收);开关电路
【英文主题词】:Basematerials;Circuits;Copper;Copper-clad;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Flexiblematerials;Foil;Marking;Materials;Materialsspecification;Paper;PETP;Plasticfilms;Plastics;Polyesterfoils;Polyesters;Polyethyleneterephthalate;Printedcircuits;Printed-circuitboards;Properties;Quality;Semiconductortechnology;Specification(approval);Specifications;Switchingcircuits;Technicaldatasheets;Testing
【摘要】:
【中国标准分类号】:L30
【国际标准分类号】:31_180
【页数】:10P.;A4
【正文语种】:英语


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基本信息
标准名称:客车门窗用塑料密封条
英文名称:Buses--Plastic sealing strips of doors and windows
中标分类: 车辆 >> 汽车底盘与车身 >> 车身(驾驶室)及附件
替代情况:调整为QC/T 641-2000
发布日期:1900-01-01
实施日期:1991-05-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:3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: 车辆 汽车底盘与车身 车身(驾驶室)及附件
【英文标准名称】:StandardGuideforDosimetryinRadiationResearchonFoodandAgriculturalProducts
【原文标准名称】:食品和农产品辐射研究中剂量测定的标准指南
【标准号】:ASTMISO/ASTM51900-2009
【标准状态】:现行
【国别】:美国
【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】:(ISO/ASTM)
【标准水平】:()
【中文主题词】:
【英文主题词】:absorbeddose;absorbed-dosemapping;absorbed-dosemeasurement;dosimetrysystem;electronbeam;experimentaldesign;foodandagriculture;gammaradiation;ionizingradiation;measurementuncertainty;primary-standarddosimeter;radiation-sensitiveindi
【摘要】:4.1Thisguideisintendedtoprovidedirectionondosimetryforexperimentsinfoodandagriculturalresearch,andonthereportingofdosimetryresults.Researchconcerningtheeffectivenessofirradiationoffoodandagriculturalproductstoachieveadefinedbenefitinvolvesverydifferentabsorbed-dosespecificationsfromonestudyandoneproducttoanother.Forexample,theabsorbeddoserequiredtosterilizefruitfliesismuchlowerthanthedosesrequiredtoinactivatesomebacterialpathogensinmeat,ortodecontaminatespices.NOTE4-Examplesoftherelevanteffectsofirradiationincludereductionofviablefood-bornebacteria,virusesandparasitesandphytosanitarytreatment(suchasdisinfestationoffruitsandvegetables),preventionofsprouting,delayofripening,andchangesinproductchemistryandquality.Furtherdiscussionoftheseeffectsisoutsidethescopeofthisguide.RefertoASTMGuidesF1355,F1356,F1736andF1885.4.2Properreportingoftheirradiationaspectisimportantsincethedegreeofbiologicaleffectmaybeafunctionofvariousfactorssuchastheradiationsource,theabsorbed-doserate,energyoftheincidentradiation,environmentaleffectsduringirradiation,andthetypeofincidentradiation.Thisguideattemptstohighlighttheinformation,includingthemethodologyandresultsoftheabsorbed-dosemeasurements,necessaryforanexperimenttoberepeatablebyotherresearchers.NOTE5-Factorsthatmayinfluencetheresponseofagriculturalproductstoionizingradiationincludegenus,species,variety,vigor,lifestage,initialquality,stateofripeness,temperature,moisturecontent,pH,packaging,shipping,andstorageconditions.Althoughthesefactorsarenotdiscussedinthisguide,theyshouldbeconsideredwhenplanningexperiments(seeASTMGuidesF1355,F1356,F1640,F1736andF1885.4.3Ideally,anexperimentshouldbedesignedtoirradiatethesampleasuniformlyaspossible.Inpractice,acertainvariationinabsorbeddosewillexistthroughoutthesample.Absorbed-dosemappingisusedtodeterminethemagnitude,location,andreproducibilityofthemaximum(Dmax)andminimumabsorbeddose(Dmin)foragivensetofexperimentalparameters.Dosimetersusedfordosemappingmustbecapableofrespondingtodosesanddosegradientslikelytooccurwithinirradiatedsamples.4.4Theoreticalcalculationsmayprovideusefulinformationaboutabsorbed-dosedistributionintheirradiatedsample,especiallynearmaterialinterfaces(seeASTMGuideE2232).1.1Thisguidecoverstheminimumrequirementsfordosimetryandabsorbed-dosevalidationneededtoconductresearchontheirradiationoffoodandagriculturalproducts.Suchresearchincludesestablishmentofthequantitativerelationshipbetweentheabsorbeddoseandtherelevanteffectsintheseproducts.Thisguidealsodescribestheoverallneedfordosimetryinsuchresearch,andinreportingoftheresults.1.2Thisguideisintendedforusebyresearchscientistsinthefoodandagriculturalcommunities,andnotjustscientistsconductingirradiationresearch.It,therefore,includesmoretutorialinformationthanmostotherASTMandISO/ASTMdosimetrystandardsforradiationprocessing.1.3Thisguideisinnowayintendedtolimittheflexibilityoftheexperimenterintheexperimentaldesign.However,theradiationsourceandexperimentalsetupshouldbechosensuchthattheresultsoftheexperimentwillbebeneficialandunderstandabletootherscientists,regulatoryagencies,andthefoodandagriculturalcommunities.1.4Theeffectsproducedbyionizingradiationinbiologicalsystemsdependonalargenumberoffactorswhichmaybephysical,physiological,orchemical.Althoughnottreatedindetailinthisguide,quantitativedataofenvironmentalfactorsthatmayaffecttheabsorbed-doseresponseofdosimeters,......
【中国标准分类号】:
【国际标准分类号】:
【页数】:9P.;A4
【正文语种】:英语