ANSI/NSF 60(i54)-2012 饮水用化学处理剂.健康影响
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来源:标准资料网
【英文标准名称】:DrinkingWaterTreatmentChemicals-HealthEffects
【原文标准名称】:饮水用化学处理剂.健康影响
【标准号】:ANSI/NSF60(i54)-2012
【标准状态】:现行
【国别】:美国
【发布日期】:2012
【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】:饮用水处理;食品;个人保健;保护(装置);水处理
【英文主题词】:Drinkingwatertreatment;Foodproducts;Personalhealth;Protection;Watertreatment
【摘要】:
【中国标准分类号】:
【国际标准分类号】:13_060_20;71_100_80
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDeterminationofRockHardnessbyReboundHammerMethod
【原文标准名称】:用回弹锤法测定岩石硬度的标准试验方法
【标准号】:ASTMD5873-2005
【标准状态】:现行
【国别】:
【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(US-ASTM)
【起草单位】:D18.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:测定;锤击试验;硬度;岩石;土壤;试验方法
【英文主题词】:core;hardness;rockmass;rock;unconfinedcompressivestrength
【摘要】:Thereboundhardnessmethodprovidesameansforrapidclassificationofthehardnessofrockduringsitecharacterizationforengineering,design,andconstructionpurposes(seeGuideD420),geotechnicalmappingoflargeundergroundopeningsinrock(seeGuideD4879),orreportingthephysicaldescriptionofrockcore(seePracticeD4543).Thereboundhardnessnumber,Hr,canserveinavarietyofengineeringapplicationsthatrequirecharacterizationofrockmaterial.Theseapplicationsinclude,forexamples,thepredictionofpenetrationratesfortunnelboringmachines,determinationofrockqualityforconstructionpurposes,andpredictionofhydraulicerodibilityofrock.Thistestmethodisoflimiteduseonverysoftrockorveryhardrock(unconfinedcompressivestrengthslessthanapproximately1MPaorgreaterthan100MPa).Theresultsofthistestmethodarenotintendedforconversiontostrengthdatasuitablefordesign.Note18212;Severaltypesofreboundhammersarecommerciallyavailabletoaccommodatetestingofvarioussizesandtypesofconcreteconstruction(SeeTestMethodC805)androckmaterial.Note28212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetestingandsampling.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodcoversthetestingapparatus,sampling,testspecimenpreparation,andtestingproceduresfordeterminingthereboundhardnessnumberofrockmaterialusingaspring-drivensteelhammer,referredtovariouslyasareboundhammer,impacttesthammer,orconcretetesthammer.1.2Thistestmethodisbestsuitedforrockmaterialwithuniaxialcompressivestrengths(seeTestMethodD7012)rangingbetweenapproximately1and100MPa.1.3Theportabletestingapparatusmaybeusedinthelaboratoryorfieldtoprovideameansofrapidassessmentofrockhardnessortoserveasanindicatorofrockhardness.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:D04
【国际标准分类号】:
【页数】:3P.;A4
【正文语种】:
【英文标准名称】:Inductivevoltagedividers;Amendment2
【原文标准名称】:感应分压器修改2
【标准号】:IEC60618AMD2-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-10
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC85
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;测量;规范(验收);图形符号;分压器;电气工程;感应;电气设备
【英文主题词】:Classification;Definitions;Electricalengineering;Electricalequipment;Electricalpropertiesandphenomena;Graphicsymbols;Inductive;Inscription;Limits(mathematics);Marking;Measurement;Mechanicalproperties;Properties;Ratings;Specification(approval);Symbols;Voltagedividers
【摘要】:ThisisAmendment2toIEC60618-1978(Diviseursdetensioninductifs)
【中国标准分类号】:N28
【国际标准分类号】:29_200
【页数】:5P.;A4
【正文语种】:英语
