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ISO 2870-1986 表面活性剂洗涤剂酸性条件下可水解的和不可水解的阴离子活性物的测定

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【英文标准名称】:Surfaceactiveagents;Detergents;Determinationofanionic-activematterhydrolyzableandnon-hydrolyzableunderacidconditions
【原文标准名称】:表面活性剂洗涤剂酸性条件下可水解的和不可水解的阴离子活性物的测定
【标准号】:ISO2870-1986
【标准状态】:作废
【国别】:国际
【发布日期】:1986-05
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC91
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;材料试验;材料;表面活性剂;化学分析和试验;活性;阴离子活性的;水解;洗涤剂;含量测定;容量分析;表面活性
【英文主题词】:Activity;Anionicactive;Chemicalanalysisandtesting;Detergents;Determinationofcontent;Hydrolysis;Materials;Materialstesting;Surfaceactive;Surfactants;Testing;Volumetricanalysis
【摘要】:ThisInternationalStandardspecifiesamethodforthedeter-mination,indetergents,ofanionic-activematterhydrolyzableandnon-hydrolyzableunderacidconditions.Thisactivematterincludesalkylsulfatesandhydroxysulfatesandalkylphenolandfattyalcoholethoxysulfates.Themeanrelativemolecularmassofthetwotypesofactivemattermustbeknownorpreviouslydetermined,iftheircon-tentisexpressedasapercentagebymass.Ifthedetergentcon-tainsperborate,thismustbedestroyedbeforethehydrolysis.
【中国标准分类号】:G72;Y43
【国际标准分类号】:71_100_40
【页数】:3P;A4
【正文语种】:英语


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【英文标准名称】:StandardTestMethodfor(AnalyticalProcedure)forDeterminingTransmissivityandStorageCoefficientofNonleakyConfinedAquifersbytheTheisNonequilibriumMethod
【原文标准名称】:非平衡法测定非越流性有侧限的蓄水层透射系数及储存系数的标准试验方法(分析程序)
【标准号】:ASTMD4106-1996(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1996
【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】:D18.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:aquifertests;aquifers;controlwells;groundwater;hydraulicconductivity;observationwells;storagecoefficient;transmissivity;Aquifers;Coefficientofstorage;Confinedaquifers;Controlwells;Fieldtesting--groundwater/aquifers;Groundwater;H
【摘要】:Assumptions:Welldischargesataconstantrate,Q.Wellisofinfinitesimaldiameterandfullypenetratestheaquifer.Thenonleakyaquiferishomogeneous,isotropic,andaeriallyextensive.Anonleakyaquiferreceivesinsignificantcontributionofwaterfromconfiningbeds.Dischargefromthewellisderivedexclusivelyfromstorageintheaquifer.ThegeometryoftheassumedaquiferandwellconditionsareshowninFig.1.ImplicationsofAssumptions:Implicitintheassumptionsaretheconditionsofradialflow.Verticalflowcomponentsareinducedbyacontrolwellthatpartiallypenetratestheaquifer,thatis,thewellisnotopentotheaquiferthroughitsfullthickness.Ifthecontrolwelldoesnotfullypenetratetheaquifer,thenearestpiezometerorpartiallypenetratingobservationwellshouldbelocatedatadistance,r,beyondwhichverticalflowcomponentsarenegligible,whereaccordingtoReed(2):Thissectionappliestodistance-drawdowncalculationsoftransmissivityandstoragecoefficientandtime-drawdowncalculationsofstoragecoefficient.Ifpossible,computetransmissivityfromtime-drawdowndatafromwellslocatedwithinadistance,r,ofthepumpedwellusingdatameasuredaftertheeffectsofpartialpenetrationhavebecomeconstant.ThetimeatwhichthisoccursisgivenbyHantush(3)by:Fullypenetratingobservationwellsmaybeplacedatlessthandistancerfromthecontrolwell.Observationwellsmaybeonthesameoronvariousradiallinesfromthecontrolwell.TheTheismethodassumesthecontrolwellisofinfinitesimaldiameter.Also,itassumesthatthewaterlevelinthecontrolwellisthesameasintheaquifercontiguoustothewell.Inpracticetheseassumptionsmaycauseadifferencebetweenthetheoreticaldrawdownandfieldmeasurementsofdrawdownintheearlypartofthetestandinandnearthecontrolwell.Controlwellstorageisnegligibleafteratime,t,givenbytheEq6afterWeeks(4).where:rc

【中国标准分类号】:P13
【国际标准分类号】:93_160
【页数】:5P.;A4
【正文语种】:英语


基本信息
标准名称:平转浸出器
中标分类: 食品 >> 食品加工机械 >> 粮食与油脂加工机械
替代情况:原标准号SB/T 10107-1992
发布日期:1992-12-30
实施日期:1993-06-01
首发日期:
作废日期:
出版日期:
页数:5页
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所属分类: 食品 食品加工机械 粮食与油脂加工机械