ASTM D4785-2008 水中碘放射性同位素低水平分析的标准试验方法

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【英文标准名称】:StandardTestMethodforLow-LevelAnalysisofIodineRadioisotopesinWater
【原文标准名称】:水中碘放射性同位素低水平分析的标准试验方法
【标准号】:ASTMD4785-2008
【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】:D19.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:iodine;ionexchange;low-levelactivity;radioiodine;radioactivity;solventextractionwater
【摘要】:Thistestmethodwasdevelopedformeasuringlowlevelsofiodine-131inwater.Theresultsofthetestmaybeusedtodetermineiftheconcentrationofiodine-131inthesampleexceedstheregulatorystatutesfordrinkingwater.Withasuitablecountingtechnique,samplesize,andcountingtime,adetectionlimitoflessthan0.037Bq/L(1pCi/L)isattainablebygamma-rayspectroscopy.1.1Thistestmethodcoversthequantificationoflowlevelsofradioactiveiodineinwaterbymeansofchemicalseparationandcountingwithahigh-resolutiongammaraydetector.Iodineischemicallyseparatedfroma4-Lwatersampleusingionexchangeandsolventextractionandisthenprecipitatedascuprousiodideforcounting.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareprovidedforinformationpurposesonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeNote2,Note3,Note9,andSection9.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:9P.;A4
【正文语种】:英语


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【英文标准名称】:LPGequipmentandaccessories-LPGpropulsionsystemsforboats,yachtsandothercraft-Installationrequirements;EnglishversionofDINEN15609:2009-02
【原文标准名称】:液化石油气(LPG)和附件.船只、游艇和其他小船用液化石油气(LPG)推进系统.安装要求
【标准号】:DINEN15609-2009
【标准状态】:作废
【国别】:德国
【发布日期】:2009-02
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:小艇;组件;压缩气体设备;压缩气体;连接链;连接件;结构要求;容器;定义;传动系统;设备;设备安全;燃气技术;燃气动力装置;检验;装置;液化石油气;液化气容器;作标记;移动的;安装;压力容器;安全;安全工程;安全要求;规范(验收);固定的;船舶;快艇
【英文主题词】:Boats;Components;Compressedgasequipment;Compressedgases;Connectionlinks;Connections;Constructionrequirements;Containers;Definition;Definitions;Drivesystems;Equipment;Equipmentsafety;Gastechnology;Gas-powereddevices;Inspection;Installations;Joints;Liquefiedpetroleumgas;Liquidgastank;Marking;Mobile;Mounting;Pressurevessels;Safety;Safetyengineering;Safetyrequirements;Specification(approval);Stationary;Vessels;Yachts
【摘要】:ThisEuropeanStandardspecifiestherequirementsfortheLPGpropulsionsystemsoncraftwithhulllengthslessthanorequalto24meters,seeDirective94/25.
【中国标准分类号】:U18
【国际标准分类号】:47_020_20;47_080
【页数】:37P.;A4
【正文语种】:英语


Product Code:SAE AS8040
Title:Heater, Aircraft Internal Combustion Heat Exchanger Type
Issuing Committee:Ac-9 Aircraft Environmental Systems Committee
Scope:This SAE Aerospace Standard (AS) covers internal combustion heat exchanger type heaters used in the following applications: a) cabin heating (all occupied regions and windshield heating); b) wing and empennage anti-icing; c) engine and accessory heating (when heater is installed as part of the aircraft); d) aircraft de-icing. This document details the minimum safety, performance, design, and testing requirements for internal combustion heaters and certain auxiliary devices that are considered necessary for the utilization of heaters in fixed and rotary wing aircraft. This standard is to be considered currently applicable and necessarily subject to revision from time to time due to advances in the aircraft industry. This standard is based on practical engineering requirements for aircraft heaters currently in use and is applicable to aircraft heaters that shall be developed to meet future requirements. The requirements of this standard are primarily intended to be applicable to civil aircraft whose primary function is transporting passengers or cargo.