DIN 52924-1-1976 纸和纸板的检验.可萃取成份的测定.沥青的测定

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【英文标准名称】:StandardTestMethodforOrganotinReleaseRatesofAntifoulingCoatingSystemsinSeaWater
【原文标准名称】:海水中防污涂层体系有机物扩散速度的测试方法
【标准号】:ASTMD5108-1990(2007)
【标准状态】:现行
【国别】:
【发布日期】:1990
【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】:D01.45
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:防污漆;锡;试验方法;海水
【英文主题词】:antifoulingcoatingsystem;organotin;releaserate;TBT;tributyltin
【摘要】:Thistestmethodisdesignedtoprovidealaboratoryproceduretomeasurechangesinthereleaseratesofsolventsolubletin(tributyl-andtriphenyltin)thatoccurduringaperiodofimmersionunderspecifiedconditionsofconstanttemperature,pH,salinity,andlowheavy-metalconcentrationsinthesurroundingseawater.Quantitativemeasurementofthereleaserateisnecessarytohelpinselectionofmaterials,inprovidingqualityassurance,andinunderstandingtheperformancemechanism.Thistestmethodservesonlyasaguidefororganotinreleaseratesinservice.Organotinreleaseratesofantifouling(AF)paintsystemsinservicecanvaryoverthelifeofthecoatingsystemdependingontheformulationandtheenvironment.Differencesinberthinglocations,operatingschedules,lengthofservice,conditionofpaint-filmsurface,temperature,pH,andsalinitycanaffectresults,Resultsobtainedmaynotnecessarilyreflectactualtributyltinreleaseratesthatwilloccurinservice,butprovidereliablecomparisonsofthereleaseratecharacteristicsofdifferentantifoulingformulations.Thistestmethodwillservetocharacterizetheearlyreleaseratepattern,aswellasestimatethesteadystaterelease,oftributyltinfrombothself-polishingcopolymerandfree-associationantifoulingpaints.1.1Thistestmethodcoversthelaboratorydeterminationoftherateatwhichorganotinexpressedastributyltin(TBT)isreleasedfromanantifouling(AF)coatinginsyntheticseawaterusinggraphitefurnaceatomicabsorptionspectrophotometry(GF-AAS).Thisdoesnotexcludetheuseofotheranalyticalmethodologyformeasurementoforganotininseawatersuchasgaschromatography.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection7.
【中国标准分类号】:A29
【国际标准分类号】:87_040
【页数】:6P.;A4
【正文语种】:


【英文标准名称】:Dynamicmodules-Part6-3:Roundrobinmeasurementresultsforgroupdelayrippleoftunabledispersioncompensators
【原文标准名称】:动态模块.第6-3部分:可调谐离散补偿装置群延迟脉动的循环测量结果.调查结果
【标准号】:IEC/TR62343-6-3-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-05
【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/SC86C
【标准类型】:()
【标准水平】:()
【中文主题词】:电缆;补偿器;元部件;减速度;分散;动态的;电插头;电气工程;电子设备及元件;包络延时线;纤维光学;玻璃纤维电缆;接口;测量;测量技术;模数;光波导;性能;工作性能
【英文主题词】:Cables;Compensators;Components;Deceleration;Dispersion;Dynamic;Electricplugs;Electricalengineering;Electronicequipmentandcomponents;Envelopedelay;Fibreoptics;Glassfibrecables;Interfaces;Measurement;Measuringtechniques;Modules;Opticalwaveguides;Performance;Performanceinservice
【摘要】:Thistechnicalreportdescribestheroundrobinmeasurementresultsforthegroupdelayripple(GDR)oftunabledispersioncompensators(TDCs).ItbrieflyexplainsthefourtypicalTDCsmeasuredandfourtypicalmethodsofmeasuringgroupdelay(GD),aswellastheGDRroundrobinmeasurementresultsofTDCs,andananalysisofrepeatabilityanddifferencesamongthesemeasurementmethods.ThistechnicalreportalsoproposessuitablemeasurementparametersandanewparameterofphaserippleinsteadofGDR.
【中国标准分类号】:M33
【国际标准分类号】:33_180_30
【页数】:32P.;A4
【正文语种】:英语