【英文标准名称】:Informationtechnology-120mmDVDrewritabledisk(DVD-RAM)
【原文标准名称】:信息技术.120mm数字化视频光盘(DVD)可重写光盘(DVD-RAM)
【标准号】:ANSI/INCITS/ISO/IEC16824-2010
【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】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:数据介质;数据处理;数据存储;尺寸规格;数字化视频光盘(DVD);软盘;信息技术;光盘;读/写内存;测试;磁道格式
【英文主题词】:Datamedia;Dataprocessing;Datastorage;Dimensions;DVD;Flexibledisks;Informationtechnology;Opticaldisks;Read-/writememories;Testing;Trackformats
【摘要】:ThisInternationalStandardspecifiesthemechanical,physicalandopticalcharacteristicsofa120mmopticaldisktoenableinterchangeofsuchdisks.Itspecifiesthequalityoftherecordedsignals,theformatofthedataandtherecordingmethod,therebyallowingforinformationinterchangebymeansofsuchdisks.Thedatacanbewritten,readandoverwrittenmanytimesusingthephasechangemethod.ThisdiskisidentifiedasDVD-RAM.
【中国标准分类号】:L64
【国际标准分类号】:35_220_30
【页数】:
【正文语种】:英语


【英文标准名称】:StandardTestMethodforLeadandCadmiumExtractedfromGlazedCeramicTile
【原文标准名称】:从上釉瓷砖提取铅和镉的试验方法
【标准号】:ASTMC895-1987(2003)
【标准状态】:现行
【国别】:
【发布日期】:1987
【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】:C21.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:玻璃的;板;陶瓷;试验;镉;铅;瓷砖
【英文主题词】:precise;lead;cadium;food;preparation
【摘要】:Thereareseveraltestmethodsavailabletomeasuretheleadandcadmiumreleasefromdinnerwareandcookware(seeTestMethodsC738andC1034andSpecificationC1035).Thesestandardsareusedasacontroltoensuretheprotectionofthepopulationagainstapossiblehealthhazard.4Thispotentialhazardariseswithimproperlyformulated,applied,firedglazesanddecorations.Thistestmethoddealsspecificallywithceramictilethatareintendedtocomeincontactwithfoodduringitspreparation(forexample,countertoptile).1.1Thistestmethodcoverstheprecisedeterminationofleadandcadmiumextractedbyaceticacidfromglazedceramictilethatareintendedforuseinareasoffoodpreparation.Theprocedureofextractionmaybeexpectedtoacceleratethereleaseofleadfromtheglazeandtoserve,therefore,asaseveretestthatisunlikelytobematchedundertheactualconditionsofusageofsuchceramictile.Thistestmethodisspecificforleadandcadmium.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q15
【国际标准分类号】:
【页数】:3P.;A4
【正文语种】: