ASTM E 579-2004 溶液中硫酸奎宁的荧光检测限值的标准试验方法
作者:标准资料网 时间:2024-05-14 03:08:00 浏览:8870
来源:标准资料网
【英文标准名称】:StandardTestMethodforLimitofDetectionofFluorescenceofQuinineSulfateinSolution
【原文标准名称】:溶液中硫酸奎宁的荧光检测限值的标准试验方法
【标准号】:ASTME579-2004
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:荧光;硫酸盐;分析方法;试验
【英文主题词】:testing;fluorescence;sulphates;analyticalmethods
【摘要】:
【中国标准分类号】:G15
【国际标准分类号】:71_080_30
【页数】:3P;A4
【正文语种】:英语
【英文标准名称】:Plastics-Determinationofwaterabsorption
【原文标准名称】:塑料.吸水率测定
【标准号】:BSENISO62-1999
【标准状态】:作废
【国别】:英国
【发布日期】:1999-04-15
【实施或试行日期】:1999-04-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:试样;潮气测量;含量测定;试样制备;尺寸;重量测量;数学计算;高聚物;管状;增强的材料;塑料;四方形;吸水试验;吸水率;扩散;煮沸试验;试验条件;方程
【英文主题词】:Absorption;Absorptivity;Determination;Determinationprocedures;Humidity;Moisture;Plastics;Quantityofwater;Testpieces;Testing;Tests;Water;Waterabsorption
【摘要】:1ThisInternationalStandarddescribesaprocedurefordeterminingthemoistureabsorptionpropertiesinthe"through-the-thickness"directionofflatorcurved-formsolidplastics.ThisInternationalStandardalsodescribesproceduresfordeterminingtheamountofwaterabsorbedbyplasticspecimensofdefineddimensions,whenimmersedinwaterorwhensubjectedtohumidairundercontrolledconditions.The"through-the-thickness"moisturediffusioncoefficientcanbedeterminedforsingle-phasematerialbyassumingFickiandiffusionbehaviourwithconstantmoistureabsorptionpropertiesthroughthethicknessofthetestspecimen.Thismodelisvalidforhomogeneousmaterialsandforreinforcedpolymer-matrixcompositestestedbelowtheirglasstransitiontemperature.However,sometwo-phasematricessuchashardenedepoxiesmayrequireamulti-phaseabsorptionmodelwhichisnotcoveredbythisInternationalStandard.2Ideallythebestcomparisonofthewaterabsorptionpropertiesand/ordiffusioncoefficientsofmaterialsshouldbecarriedoutonlyusingtheequilibriummoisturecontentofplasticsexposedtoidenticalconditions.Thecomparisonofmaterialsusingpropertiesatmoistureequilibriumdoesnotassume,andisthereforenotlimitedto,single-phaseFickiandiffusionbehaviour.3Alternatively,waterabsorptionofplasticspecimensofdefineddimensionsexposedtoimmersionorhumidityundercontrolledconditionsbutforanarbitrarytimeperiodcanbeusedtocomparedifferentbatchesofthesamematerialorforqualitycontroltestsofagivenmaterial.Forthistypeofcomparison,itisessentialthatalltestspecimensbeofidenticaldimensionsand,asnearlyaspossible,havethesamephysicalattributes,e.g.surfacesmoothness,internalstresses,etc.However,moistureequilibriumisnotreachedundertheseconditions.Therefore,resultsfromthistypeoftestcannotbeusedtocomparethewaterabsorptionpropertiesofdifferenttypesofplastics.Forthemorereliableresults,simultaneoustestsarerecommended.4TheresultsobtainedusingthemethodsdescribedinthisInternationalStandardareapplicabletomostplasticsbutarenotapplicabletocellularplastics,granulates,orpowderswhichcanshowadditionalabsorptionandcapillaryeffects.Plasticsexposedtomoistureundercontrolledconditionsfordefinedperiodsoftimeproviderelativecomparisonsbetweenthem.Thetestsdescribedfordeterminationofdiffusioncoefficientmaynotbeapplicabletoallplastics.Plasticsthatcannotretaintheirshapewhenimmersedinboilingwatershouldnotbecomparedusingmethod2in6.3.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:22P;A4
【正文语种】:英语
基本信息
标准名称: | 双液法调剖剂性能评价方法 |
中标分类: |
石油 >>
石油勘探、开发与集输 >>
石油开采 |
替代情况: | 被SY/T 5590-2004代替 |
发布日期: | 1993-09-09 |
实施日期: | 1994-03-01 |
首发日期: | 1900-01-01 |
作废日期: | 2004-11-01 |
出版日期: | 1900-01-01 |
页数: | 7页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类: 石油 石油勘探 开发与集输 石油开采