BS 6068 Sec.2.10-1984 水质.第2部分:物理、化学和生物化学方法.第10节:铵的测定:电势测定法
时间:2024-05-08 12:04:31 来源: 标准资料网 作者：标准资料网 阅读：9655
【英文标准名称】:Waterquality.Physical,chemicalandbiochemicalmethods.Determinationofammonium:potentiometricmethod
【原文标准名称】:水质.第2部分:物理、化学和生物化学方法.第10节:铵的测定:电势测定法
【标准号】:BS6068Sec.2.10-1984
【标准状态】:作废
【国别】:英国
【发布日期】:1984-12-31
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:精密度;氨态氮;水资源;废水;质量;离子交换法;干扰(化学);水;废弃物;电位测量法;准确度;含量测定;校正;化学分析和试验;污水;蒸馏分析法;氨;水质试验;电解分析法;铵无机化合物;薄膜材料
【英文主题词】:
【摘要】:
【中国标准分类号】:P40;Z16
【国际标准分类号】:
【页数】:8P;A4
【正文语种】:英语
【英文标准名称】:StandardforThin-FilmTerrestrialPhotovoltaic(PV)Modules-DesignQualificationandTypeApproval
【原文标准名称】:地面用薄膜光伏(PV)模块标准.设计资格和型号批准
【标准号】:ANSI/UL61646-2012
【标准状态】:现行
【国别】:美国
【发布日期】:2012
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Acceptance;Designcertifications;Dimensioning;Electricalengineering;Light-fastness;Marking;Modules;Openair;Outdoor;Photovoltaics;Qualificationtesting;Rejection;Silicon;Solarenergy;Suitability;Terrestrial;Testing;Thin-filmtechnology;Typeapproval;Types
【摘要】:ProvidestheproposedfirsteditionoftheULIEC-basedStandardforThin-FilmTerrestrialPhotovoltaic(PV)Modules-DesignQualificationandTypeApproval,UL61646.
【中国标准分类号】:
【国际标准分类号】:27_160
【页数】:
【正文语种】:英语
【英文标准名称】:StandardPracticeforCalculatingYellownessandWhitenessIndicesfromInstrumentallyMeasuredColorCoordinates
【原文标准名称】:计算仪器测量颜色坐标的白色和黄色指数的标准实施规程
【标准号】:ASTME313-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:E12.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:色度量度;索引;材料;不透明颜料;光学;记录;试验
【英文主题词】:color;colorimetricanalysis;instrumentalmeasurement,color/light;reflectance;reflectivity;whitenessindexes;yellownessindexes
【摘要】:Thispracticeshouldbeusedonlytocomparespecimensofthesamematerialandsamegeneralappearance.Forexample,aseriesofspecimenstobecomparedshouldhavegenerallysimilargloss,texture,and(ifnotopaque)thickness,andtranslucency.Foryellownessmeasurement,thispracticeislimitedtospecimenshavingdominantwavelengthintherange570to580nm,orMunsellhueapproximately2.5GYto2.5Y.Forwhitenessmeasurement,thispracticeislimitedtospecimenshavingMunsellvaluegreaterthan8.3(CIEYgreaterthan65)andMunsellchromanogreaterthan0.5forBhues,0.8forYhues,and0.3forallotherhues(see3.3.1).Thecombinationofmeasurementandcalculationleadingtoindicesofyellownessorwhitenessisapsychophysicalprocess,thatis,theproceduresspecifiedaredesignedtoprovidenumberscorrelatingwithvisualestimatesmadeunderspecifiedtypicalobservingconditions.Becausevisualobservingconditionscanvarywidely,usersshouldcomparecalculatedindiceswithvisualestimatestoensureapplicability.SomestandardsaddressingthevisualestimationofcolorandcolordifferencearePracticesD1535,D1729,E1360,andE1541,andGuideE1499.Thispracticedoesnotcoverthepreparationofspecimens,aprocedurethatmayaffectsignificantlythequantitiesmeasured.Ingeneral,specimensshouldbepreparedandpresentedformeasurementinthemannerthatisstandardforthetestbeingperformed.Selectenoughspecimensorspecimenareastoprovideanaverageresultthatisrepresentativeofeachsampletobetested.SeePracticeE1345.1.1Thispracticeprovidesnumbersthatcorrelatewithvisualratingsofyellownessorwhitenessofwhiteandnear-whiteorcolorlessobject-colorspecimens,viewedindaylightbyanobserverwithnormalcolorvision.Whitetextiles,paints,andplasticsareafewofthematerialsthatcanbedescribedbytheindicesofyellownessorwhitenesscalculatedbythispractice.1.2Foracompleteanalysisofobjectcolors,byaspecifiedobserverandunderaspecifiedilluminant,useofthreeparametersisrequired.Fornear-whitespecimens,however,itisoftenusefultocalculatesingle-numberscalesofyellownessorwhiteness.Thispracticeprovidesrecommendedequationsforsuchscalesanddiscussestheirderivationsanduses,andlimitstotheirapplicability(seealsoRef()).1.3&solely-SI-units;Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A26
【国际标准分类号】:17_180_20
【页数】:6P.;A4
【正文语种】: