【英文标准名称】:StandardTestMethodforRateofBurningand/orExtentandTimeofBurningofPlasticsinaHorizontalPosition
【原文标准名称】:塑料在水平位置条件下的燃烧速度和/或燃烧范围和时间的标准试验方法
【标准号】:ASTMD635-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D20.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:burningcharacteristics;combustion;extentofburning;flammability;HB;horizontalburningrate;plastics;rateofburning;small-scaleburningtestburning;timeofburning;Burningcharacteristics--plastics;Extentofburning;Horizontalburn
【摘要】:Testsmadeonamaterialunderconditionshereinprescribedareofvalueincomparingtherateofburningorextentandtimeofburningcharacteristics,orboth,ofdifferentmaterials,incontrollingmanufacturingprocesses,orasameasureofdeteriorationorchangeintheseburningcharacteristicspriortoorduringuse.Correlationwithflammabilityunderactualuseconditionsisnotimplied.Therateofburningandotherburningphenomenawillbeaffectedbysuchfactorsasdensity,pigments,anyanisotropyofthematerialandthethicknessofthespecimen.Testdatashallbecomparedonlyforspecimensofsimilarthickness,whethercomparisonsarebeingmadewiththesameordifferentmaterials.Therateofburningandotherburningphenomenawillvarywiththickness.Itisfeasiblethatsheetmaterialsthathavebeenstretchedduringprocessingwillrelaxduringburningandgiveerraticresultsunlesstheyarefirstheatedabovetheirdeflectiontemperature,inaccordancewithTestMethodD648,foratimesufficienttopermitcompleterelaxation.Burningtestsrequirethatcertainvariablesbearbitrarilyfixed,forexample,specimensize,energysourceandapplicationtime,andendpoints.Materialswillbefoundthatareunusuallysensitivetooneormoreoftheconditionschosenforthismethodleadingtohighlyvariableresults.Additionalburningcharacterizationbyothermethodsishighlydesirableinsuchcases(seeNote2).Inthisprocedure,thespecimensaresubjectedtospecificlaboratorytestconditions.Ifdifferenttestconditionsaresubstitutedortheend-useconditionsarechanged,itwillnotalwaysbepossiblebyorfromthistesttopredictchangesinthefire-test-responsecharacteristicsmeasured.Therefore,theresultsarevalidonlyforthefire-test-exposureconditionsdescribedinthisprocedure.1.1Thisfire-test-responsetestmethodcoversasmall-scalelaboratoryscreeningprocedureforcomparingtherelativelinearrateofburningorextentandtimeofburning,orboth,ofplasticsintheformofbars,moldedorcutfromsheets,plates,orpanels,andtestedinthehorizontalposition.Note18212;Thistestmethod,andtestmethodAofIEC60695-11-10aretechnicallyequivalent.Note28212;Foradditionalinformationonmaterialswhichdonotburntothefirstreferencemarkbythistest,seeTestMethodD3801.1.2Thistestmethodwasdevelopedforpolymericmaterialsusedforpartsindevicesandappliances.Theresultsareintendedtoserveasapreliminaryindicationoftheiracceptabilitywithrespecttoflammabilityforaparticularapplication.Thefinalacceptanceofthematerialisdependentuponitsuseincompleteequipmentthatconformswiththestandardapplicabletosuchequipment.1.3TheclassificationsystemdescribedinAppendixX1isintendedforqualityassuranceandthepreselectionofcomponentmaterialsforproducts.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandardisusedtomeasureanddescribetheresponseofmaterials,products,orassembliestoheatandflameundercontrolledconditions,butdoesnotbyitselfincorporateallfactorsrequiredforfirehazardsorfireriskassessmentofmaterials,products,orassembliesunderactualfireconditions.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itist......
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:7P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 雾化CuSn10青铜粉 |
| 中标分类： |
冶金 >>
粉末冶金 >>
粉末冶金材料与制品 |
| 替代情况： | 被JB/T 7380-2010代替 |
| 发布部门： | 中华人民共和国机械工业部 |
| 发布日期： | 1994-07-26 |
| 实施日期： | 1995-07-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2010-07-01 |
| 提出单位： | 北京市粉末冶金研究所 |
| 归口单位： | 北京市粉末冶金研究所 |
| 起草单位： | 北京有色金属粉末厂 |
| 起草人： | 于愚、鲍新国、何玮 |
| 出版社： | 机械工业出版社 |
| 出版日期： | 1995-06-01 |
| 页数： | 3 页 |
| 批文号： | 机械科[1994]614号 |
适用范围
本标准规定了粉末冶金用雾化CuSn10青铜粉的技术要求、测试方法及验收规则等。本标准适用于预合金及部分预合金CuSn10青铜粉。
前言
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引用标准
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所属分类： 冶金 粉末冶金 粉末冶金材料与制品