NF P98-218-3-1995 路面试验.滑度试验.第3部分:通过表面光度仪数据计算纵向平滑度指数

上一篇: NF P98-490-1995 道路设备.输水道端的纵向安全.设计和安装
下一篇: NF P98-254-4-1995 路面试验.渗水路面的表层浅水特性.第4部分:连续荷载渗漏器表面排水量的测定

【英文标准名称】:StandardTestMethodforRubberFromNaturalSources-PlasticityRetentionIndex(PRI)
【原文标准名称】:天然橡胶塑性保持指数(PRI)的试验
【标准号】:ASTMD3194-2004(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:D11.22
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:naturalrubber;plasticity;P.R.I.;retentionindex;Naturalrubber(NR);Plasticityindex;Rawrubber
【摘要】:Thistestmethodmaybeusedtoevaluatetheheatand/oroxidationstability(aging)ofrawrubberundercontrolledconditions.Highoriginalandagedplasticityvaluesusuallycorrespondtogoodagingproperties.Theratiooftheagedtooriginalplasticityvaluesexpressedasapercentage,thePRI,isusedasanindicationofaging.1.1Thistestmethodgivesanindicationoftheoxidationresistanceofrawnaturalrubberataspecifiedtemperature.ThisresistanceisindicatedbythePlasticityRetentionIndex(PRI),aratioexpressedasapercentageoftheagedplasticitytotheoriginalplasticitydeterminedbymeansofaparallelplateplastometer.AlowPRIvalueindicatesapoorresistancetooxidation.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G34
【国际标准分类号】:
【页数】:3P.;A4
【正文语种】:英语


【英文标准名称】:Householdandsimilarelectricalappliances-Safety-Part2-12:Particularrequirementsforwarmingplatesandsimilarappliances
【原文标准名称】:家用和类似用途电器.安全.第2-12部分:保温板和类似器具的详细要求
【标准号】:BSEN60335-2-12-2003+A1-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2003-08-21
【实施或试行日期】:2003-08-21
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;耐久性;介电强度;电气器具;电器具;电气设备;电器;公共饮食业用电器;电气工程;家用电器;设备安全性;防火安全;食物加温器;家用设备;家用;抗湿;防电击;额定电压;警告;危险管理;安全;安全要求;规范(验收);材料强度;食品加温板;电热炉
【英文主题词】:Definition;Definitions;Dielectricstrength;Electricappliances;Electrichouseholdappliance;Electricalappliances;Electricalcateringappliances;Electricalengineering;Electricalhouseholdappliances;Equipmentsafety;Firesafety;Foodwarmers;Householdequipment;Householduse;Moistureresistance;Protectionagainstelectricshocks;Ratedvoltages;Safety;Safetyrequirements;Specification(approval);Strengthofmaterials;Warmingplates
【摘要】:ThisclauseofPart1isreplacedbythefollowing.ThisInternationalStandarddealswiththesafetyofelectricwarmingplates,warmingtraysandsimilarappliancesintendedtokeepfoodorvesselswarm,forhouseholdandsimilarpurposes,theirratedvoltagebeingnotmorethan250V.Asfarasispracticable,thisstandarddealswiththecommonhazardspresentedbyappliancesthatareencounteredbyallpersonsinandaroundthehome.However,ingeneral,itdoesnottakeintoaccountNOTE101Attentionisdrawntothefactthat–forappliancesintendedtobeusedinvehiclesoronboardshipsorinaircraft,additionalrequirementsmaybenecessary;–inmanycountriesadditionalrequirementsarespecifiedbythenationalhealthauthorities,thenationalauthoritiesresponsiblefortheprotectionoflabourandsimilarauthorities.NOTE102Thisstandarddoesnotapplyto–appliancesmadeofflexiblematerial,suchastextilematerial;–appliancesintendedexclusivelytobeusedinlocationswherespecialconditionsprevail,suchasthepresenceofacorrosiveorexplosiveatmosphere(dust,vapourorgas);–appliancesintendedexclusivelyforcommercialcateringorindustrialpurposes.
【中国标准分类号】:Y63
【国际标准分类号】:97_040_20;13_120;97_040_50
【页数】:16P.;A4
【正文语种】:英语