【英文标准名称】:StandardSpecificationforChromiumMetal
【原文标准名称】:金属铬的标准规范
【标准号】:ASTMA481-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:铬;金属;铁;铁合金
【英文主题词】:metals;iron;chromium;ferro-alloys
【摘要】:
【中国标准分类号】:H62
【国际标准分类号】:77_120_40
【页数】:2P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforDeterminingA-WeightedSoundPowerLevelofVacuumCleaners
【原文标准名称】:测定真空吸尘器A-加重声音功率级的标准试验方法
【标准号】:ASTMF1334-2008
【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】:F11.25
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:A-weighted;centralvacuumcleaner;motorizednozzle;referencesoundsource(RSS);soundpowerlevel;vacuumcleaners;Soundpowerlevel(ofvacuumcleaners);Vacuumcleaners/systems
【摘要】:ThetestresultsenablethecomparisonofA-weightedsoundemissionfromvacuumcleanerswhentestedundertheconditionofthistestmethod.1.1ThistestmethodcalculatestheoverallA-weightedsoundpowerlevelemittedbysmallportableupright,canister,combinationvacuumcleaners,andcentralvacuumcleanermotorizednozzlesintendedforoperationindomesticandcommercialapplications.1.1.1TodeterminetheSoundPowerLevelofacentralvacuumatthepowerunitlocationrefertoTestMethodF2544.1.2A-weightedsoundpressuremeasurementsareperformedonastationaryvacuumcleanerinasemi-reverberantroom.Thistestmethoddeterminessoundpowerbyacomparisonmethodforsmallnoisesources,thatis,comparisontoabroadbandreferencesoundsource.1.3ThistestmethoddescribesaprocedurefordeterminingtheapproximateA-weightedsoundpowerlevelofsmallnoisesources.Thistestmethodusesanon-specialsemi-reverberantroom.1.4ResultsareexpressedasA-weightedsoundpowerlevelindecibels(referencedtoonepicowatt).1.5Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z32
【国际标准分类号】:97_080
【页数】:8P.;A4
【正文语种】:英语