BS 1000[58]-1979 国际十进分类法.英文版全表.植物学

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【英文标准名称】:Specificationforironbluepigments
【原文标准名称】:铁蓝颜料的规范
【标准号】:BSENISO2495-2001
【标准状态】:现行
【国别】:英国
【发布日期】:1995-11-15
【实施或试行日期】:1995-11-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:酸度;溶剂萃取方法;涂料;化学成分;抽样方法;重量分析;三氧化物;定量分析;水解萃取法;亚铁无机化合物;化学分析和试验;蓝色;一氧化物;数学计算;试验条件;含量测定;挥发物测定;铁无机化合物;正铁无机化合物;颜料
【英文主题词】:Blue;Chemicalanalysisandtesting;Definition;Definitions;Iron;Pigments;Specification(approval);Testing
【摘要】:ThisInternationalStandardspecifiestherequirementsandthecorrespondingmethodsoftestforironbluepigments.
【中国标准分类号】:G54
【国际标准分类号】:87_060_10
【页数】:20P.;A4
【正文语种】:英语


【英文标准名称】:SpecificationforReagentWater
【原文标准名称】:化学试剂水规范
【标准号】:ANSI/ASTMD1193-1999
【标准状态】:作废
【国别】:美国
【发布日期】:1999
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:化学试剂;药液;试剂;水
【英文主题词】:Chemicalreagents;Chemicals;Reagents;Water
【摘要】:Thisspecificationcoversrequirementsforwatersuitableforuseinmethodsofchemicalanalysisandphysicaltesting.Fourgradesarespecified:TypeITypeIITypeIIITypeIVElectricalconductivity,max,?S/cmat298K(25?C)0.0561.00.255.0Electricalresistivity,min,Mcmat298K(25?C)181.04.00.2pHat298K(25?C)AAA5.0to8.0Totalorganiccarbon(TOC),max,?g/L5050200nolimitSodium,max,?g/L151050Chlorides,max,?g/L151050Totalsilica,max,?g/L33500nolimitMicrobiologicalcontamination-Whenbacteriallevelsneedtobecontrolled,reagentgradetypesshouldbefurtherclassifiedasfollows:TypeATypeBTypeCMaximumheterotrophicbacteriacount10/1000mL10/100mL100/10mLEndotoxin,EU/mlB0.030.25notapplicableAThemeasurementofpHinTypeI,II,andIIIreagentwatershasbeeneliminatedfromthisspecificationbecausethesegradesofwaterdonotcontainconstituentsinsufficientquantitytosignificantlyalterthepH.BEU=EndotoxinUnits.Themethodofpreparationofthevariousgradesofreagentwaterdeterminesthelimitsofimpuritiesandshallbeasfollows:TypeIgradeofreagentwatershallbepreparedbydistillationorotherequalprocess,followedbypolishingwithamixedbedofionexchangematerialsanda0.2-?mmembranefilter.Feedwatertothefinalpolishingstepmusthaveamaximumconductivityof20?S/cmat298K(25?C).TypeIIgradeofreagentwatershallbepreparedbydistillationusingastilldesignedtoproduceadistillatehavingaconductivityoflessthan1.0?S/cmat298K(25?C).Ionexchange,distillation,orreverseosmosisandorganicadsorptionmayberequiredpriortodistillationifthepuritycannotbeattainedbysingledistillation.Note1-Becausedistillationisaprocesscommonlyreliedupontoproducehighpuritywater,thelevelsspecifiedforTypeIIreagentwaterwereselectedtorepresenttheminimumqualityofwaterthatadistillationprocessshouldproduce.TypeIIIgradeofreagentwatershallbepreparedbydistillation,ionexchange,continuouselectrodeionizationreverseosmosis,oracombinationthereof,followedbypolishingwitha0.45-?mmembranefilter.1.2.4TypeIVgradeofreagentwatermaybepreparedbydistillation,ionexchange,continuouselectrodeionizationreverseosmosis,electrodialysis,oracombinationthereof.Thechoiceofoneofthevariousgradesmaybedesignatedbythemethodorbytheinvestigator.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G77
【国际标准分类号】:71_040_30
【页数】:
【正文语种】:英语