JIS K4149-1963 R酸(二钠盐)
时间:2024-05-13 22:13:38 来源: 标准资料网 作者：标准资料网 阅读：9936
【英文标准名称】:R-acid(disodiumsalt)
【原文标准名称】:R酸(二钠盐)
【标准号】:JISK4149-1963
【标准状态】:作废
【国别】:日本
【发布日期】:
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:Abolishment
【标准类型】:()
【标准水平】:()
【中文主题词】:甲苯;磺酸;中间的;有机颜料;间氨基苯磺酸;氨基磺酸;苯;氯苯;硝基化合物;苯胺;胺(芳族);萘酚;磺酸盐化合物;芳族化合物;染料;萘
【英文主题词】:metanilicacid;aniline;;amines(aromatic)intermediate;;chlorobenzenenaphthols;;naphthalene
【摘要】:
【中国标准分类号】:G56
【国际标准分类号】:
【页数】:2P;A4
【正文语种】:日语
【英文标准名称】:Knottednettingforfishing;basicmanufacturingterms,description
【原文标准名称】:捕鱼用的打结网布.基本的生产概念.说明
【标准号】:DIN61252-1972
【标准状态】:作废
【国别】:德国
【发布日期】:1972-02
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:纤维;纺织材料;渔网;纺织技术;水产业;捕捞;生产;定单;尺寸;定义
【英文主题词】:fibres;dimensions;textiletechnology;definitions;fishingnets;textiles;production;nettingforfishing;orders(salesdocuments);fisheries;fishing
【摘要】:
【中国标准分类号】:B56
【国际标准分类号】:65_150;01_040_65
【页数】:3P;A4
【正文语种】:德语
【英文标准名称】:StandardGuideforChemicalFateinSite-SpecificSediment/WaterMicrocosms
【原文标准名称】:现场沉淀物中/水中小世界中化学消毒的标准指南
【标准号】:ASTME1624-1994(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1994
【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】:E47.04
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:Chemicals(environmentalanalysis);Environmentalsiteassessment(ESA)--water;Fieldtesting--environmentalmaterials/applications;Laboratoryenvironmentalanalysis;Microcosmtest;Sedimenttoxicitytesting
【摘要】:Thefateofchemicalsreleasedtotheenvironmentmaybeevaluatedinthefieldorinlaboratorystudies.Thisguideprovidesdirectiononthedevelopment,use,andevaluationofmicrocosmstudiesthatsimulateaspecificaquaticecosystemandincludesedimentandrelevantbiota.Akeyobjectiveintheuseofsite-specificmicrocosmsistheabilitytoextrapolateinformationobtainedinthelaboratorysystemtofieldsituationswithareasonabledegreeofconfidence.Fieldstudiescanobtainimportantinformationaboutthefateofchemicalsinaparticularecosystembuthavemanydisadvantages.Infieldstudies,environmentalvariables,ingeneral,cannotbecontrolledandthestudymaybesubjecttowidefluctuationsinvariablessuchastemperature,rainfallorsunlight.Introductionofachemicalintoanecosystemmayproduceanunacceptableenvironmentalrisk.Furthermore,fieldstudiesoftenareprohibitivelyexpensive.Someenvironmentalfatestudiesusestructuralorsyntheticcommunities(notsite-specificmicrocosms)createdbyplacingwater,soilorsediment,plants,animalsandmicrobiotainacontaineraccordingtoanestablishedprotocol.Somesyntheticcommunitieshavebeenspecificallydesignedtoexaminethefateofchemicalsubstancesinaquaticenvironments(thatis,Metcalfetal.(1)andIsenseeandTayaputch(2).Thesesyntheticcommunitiesprovidereproducibleenvironmentsinwhichtoevaluateandrankchemicalsaccordingtotheirfatebutextrapolationtospecificecosystemsisdifficult.Thisisbecausetheylackcomplexpopulationstructuresandprocessesanalogoustospecificnaturalecosystems.Inaddition,theyfrequentlycontainabiomassoforganismsthatisnotscaledtothevolumeofwaterorsediment,therebygivingexaggeratedratesofchemicalmetabolism.Amicrocosmreplicatesmanyoftheprocessesaffectingthefateofachemicalinacomplexecosystem.Amicrocosmcanbeexaminedundercontrolledlaboratoryconditionsintheabsenceofcertainvariablesthatmightinterferewithanunderstandingofaparticularprocess.Microcosmsprovideanopportunitytomanipulatevariablesandtostudytheireffectsandinteractions.Microcosmsalsoofferreplicationpossibilitiesforassessingenvironmentalvariability,anadvantagethatisnotavailablefromfieldstudies.Microcosmscanbeusedtoexaminethesignificanceofvariousfateprocesses.Byexaminingtestcompoundsinmicrocosmsitispossibletodeterminetherelativeeffectsofvariousfateprocesses(forexample,bioticversusabiotic).Thismakesitpossibletofocusoncriticalprocessesandconsidersite-specificenvironmentalsituationswheretheseprocessespredominateorareabsent.Althoughsomefateprocessessuchashydrolysisorpartitioningtosedimentsmaybequantifiedadequatelyinsimplerstudies(forexample,shake-flaskoraquariatests)otherssuchasbioturbationmayrequirethecomplexityofamicrocosmforadequateassessment.Animportantaspectofmicrocosmtestingisdeterminingthesignificanceofbiologicalprocessesinenvironmentalfate.Bystudyingtestcompoundfateinsterilizedmicrocosms,theroleofbioturbation(thatcandistributeachemicaldeepinsedimentbeds)canbeassessedalongwithbiodegradation.Thefollowingareexamplesofchemicalfateinformationthatmightbeobtainedinmicrocosmstudies.Howlongachemicalsubstancewillpersistinitsparentforminaparticularenvironment,Whetherthefateofachemicalisprimarilydependentonbioticorabioticprocesses,Theeffectonthefateofachemicalbythepresenceofplantsthatmaytakeupthechemicalandstoreormetabolizeitandthatprovideadditionalsurfacesformicrobialcolonization,Theeffectonthefateofachemicalbytheactivityofbenthicorganismsthatmovewaterandsediment,and......
【中国标准分类号】:Z12
【国际标准分类号】:13_060_45
【页数】:6P.;A4
【正文语种】:英语