UL 1570-1988 荧光照明设备
作者:标准资料网 时间:2024-05-17 04:28:41 浏览:8686
来源:标准资料网
【英文标准名称】:Fluorescentlightingfixtures
【原文标准名称】:荧光照明设备
【标准号】:UL1570-1988
【标准状态】:作废
【国别】:美国
【发布日期】:1988-04
【实施或试行日期】:
【发布单位】:美国保险商实验所(UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:电子照明系统;电气工程;商业用途;住宅区;照明设备;荧光材料
【英文主题词】:fluorescentmaterials;electriclightingsystem;electricalengineering;commercialuse;residentialareas;lightingplants
【摘要】:
【中国标准分类号】:K72
【国际标准分类号】:29_140_30
【页数】:74P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforIronBacteriainWaterandWater-FormedDeposits
【原文标准名称】:水和水沉积物中铁细菌含量的标准试验方法
【标准号】:ASTMD932-1985(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1985
【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】:D19.24
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Bacteria/bacterialcontrol--water;Microscopicexamination--water;Water-formeddeposits
【摘要】:Ironbacteriaisageneralclassificationformicroorganismsthatutilizeferrousironasasourceofenergyandarecharacterizedbythedepositionofferrichydroxideintheirmucilaginoussheaths.Theprocessiscontinuouswiththesegrowths,andoveraperiodoftimelargeaccumulationsofslimeybrowndepositscanoccur.Ironbacteriamayclogwaterlines,reduceheattransfer,andcausestaining;objectionableodorsmayarisefollowingdeathofthebacteria.Theorganicmatterinthewaterisconsequentlyincreased,andthisinturnfavorsthemultiplicationofotherbacteria.1.1Thistestmethodcoversthedeterminationofironbacteriabyexaminationunderthemicroscope.Themethodprovidesfortheidentificationofthefollowinggeneraofbacteriafoundinwaterandwater-formeddeposits:Siderocapsa,Gallionella(Dioymohelix),Sphaerotilus,Crenothrix,Leptothrix,andClonothrix.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C51
【国际标准分类号】:13_060_50
【页数】:7P.;A4
【正文语种】:英语
