【英文标准名称】:StandardTestMethodforDeterminingLiquidDropSizeCharacteristicsinaSprayUsingOpticalNonimagingLight-ScatteringInstruments
【原文标准名称】:用光学无图信号光散射仪确定喷射时液滴尺寸特性的标准试验方法
【标准号】:ASTME1260-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:E29.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:光散射测量;粒子分析;液体;试验
【英文主题词】:drop;droplet;light-scattering;liquid;optical;particle;sizing;spray
【摘要】:Thepurposeofthistestmethodistoprovidedataonliquiddrop-sizecharacteristicsforsprays,asindicatedbyopticalnonimaginglight-scatteringinstruments.Theresultsobtainedgenerallywillbestatisticalinnature.Thenumberofvariablesconcernedintheproductionofliquidspray,togetherwiththevarietyofoptical,electronic,andsamplingsystemsusedindifferentinstruments,maycontributetovariationsinthetestresults.Caremustbeexercised,therefore,whenattemptingtocomparedatafromsamplesobtainedbydifferentmeans.1.1Thepurposeofthistestmethodistoobtaindatawhichcharacterizethesizesofliquidparticlesordropssuchasareproducedbyaspraynozzleorsimilardeviceunderspecifiedconditionsusingaspecifiedliquid.Thedropswillgenerallybeinthesizerangefrom5-mtotheorderof1000-mdiameter;theywilloccurinsprayswhichmaybeassmallasafewcubiccentimetresoraslargeasseveralcubicmetres.Typicallythenumberdensityoftheparticlescanvarysignificantlyfromonepointtoanother.1.2Thistestmethodisintendedprimarilyforuseinstandardizingmeasurementsoftheperformanceofsprayproducingdevices.Itislimitedtothosetechniquesandinstrumentsthatoperatebypassingabeamoflightthroughthesprayandanalyzingthelightscatteredbythedropletstoderivesizeinformation.Suchtechniquesdonotproduceimagesofindividualdrops,andtherefore,areknownas"optical(nonimaging)instruments."1.3Themeasurementsmade,whenreferredtotheentirespraybeingsampled,maybefluxsensitiveorspatial,asdefinedinPracticeE799,dependingonthetechniquesusedwithaparticularinstrument.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N34
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:Nickelalloys;flameatomicabsorptionspectrometricanalysis;part3:determinationofchromiumcontent
【原文标准名称】:镍合金火焰原子吸收光谱法第3部分:铬含量测定
【标准号】:ISO7530-3-1990
【标准状态】:现行
【国别】:国际
【发布日期】:1990-12
【实施或试行日期】:1990-12-15
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC155
【标准类型】:()
【标准水平】:()
【中文主题词】:化学分析和试验;含量测定;铬;试验;镍合金;原子吸收分光光度测定法
【英文主题词】:Atomicabsorptionspectrophotometry;Chemicalanalysisandtesting;Chromium;Determinationofcontent;Nickelalloys;Testing
【摘要】:Themethodisapplicabletochromiumcontentsbetween0,01%(m/m)and4%(m/m).Thegeneralrequirementsconcerningtheapparatus,sampling,dissolutionofthetestsample,atomicabsorptionmeasurements,calculationsandtestreportaregiveninISO7530-1.Specifiesprinciple,reagents,apparatus,samplingandsamplepreparation,procedure,expressionofresultsandtestreport.
【中国标准分类号】:H13
【国际标准分类号】:77_120_40
【页数】:3P;A4
【正文语种】:英语