ASTM D4134-1982(2004) 用克拉克-邦普斯浮游生物采样器采集可繁殖海洋浮游生物
时间:2024-05-12 14:30:52 来源: 标准资料网 作者：标准资料网 阅读：9639
【英文标准名称】:StandardPracticeforSamplingPhytoplanktonwithaClarke-BumpusPlanktonSampler
【原文标准名称】:用克拉克-邦普斯浮游生物采样器采集可繁殖海洋浮游生物
【标准号】:ASTMD4134-1982(2004)
【标准状态】:现行
【国别】:
【发布日期】:1982
【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】:E47.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:工艺;资源回收;浮游生物;水质;污染控制;抽样方法
【英文主题词】:
【摘要】:TheadvantagesoftheClarke-Bumpusplanktonsamplerareasfollows:4.1.1Itwillsampleadiscretedepthormultipledepths,dependinguponthesamplingdesign.4.1.2Itisaslowtomediumspeedsamplerrequiringatowingspeedof3to5knots.4.1.3Thesamplesizecanbeeasilycontrolled.4.1.4Thesamplerislight-weightandcanbeusedwithoutauxiliaryequipment.4.1.5Ithasarelativelyhighfiltrationefficiencyfactorof0.88.4.1.6Itisaversatilesamplerandcanbeusedinallbuttheshallowestwaters.4.1.7Theflowmeterrecordstheamountofwaterthatpassesintothenet.4.1.8Overspillofwateratthemouthofthenetduetoexcessspeedoftowingisofminimalconsequence.ThedisadvantagesoftheClarke-Bumpusplanktonsamplerareasfollows:4.2.1Theflowmeterrequiresfrequentmaintenanceincludingcalibrationandlubrication.4.2.2Itisnotsuitableforuseinverysmallareasorshallowwaters.4.2.3Becauseoftheuseofanetasafiltrationmaterial,thesampleissemiquantitative.ThereareseveralspecialconsiderationsthatshallbeobservedwhenusingaClarke-Bumpussampler.Theyareasfollows:4.3.1Theflowmetershouldbecalibratedandservicedfrequentlytoensureefficientandaccurateoperation.4.3.2Thesamplerisrelativelyfragile,particularlytheclosingdeviceandflowmeter.Thisnecessitatescarefuldeploymentandrecoveryprocedures.4.3.3Followingeachcollection,thenetmustbethoroughlywashed.4.3.4Specialattentionmustbegiventothestrengthofthecableanditsattachmenttoavoidlossofthesampler.4.3.5Thesamplershouldnotbeusedinbedsofmacrophytes,inwaterscontainingsubmergedobjects,orclosetothebottom.4.3.6Thenetshouldbeinspectedfrequentlyforpin-sizeholes,tears,netdeterioration,andotheranomalies.4.3.7Followinguse,thewetnetshouldbesuspendedfulllengthinairandinsubduedlightandallowedtodry.1.1ThispracticecoverstheproceduresforobtainingsemiquantitativesamplesofaphytoplanktoncommunitybyuseofaClarke-Bumpusplanktonsampler.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z04
【国际标准分类号】:
【页数】:2P.;A4
【正文语种】:
【英文标准名称】:
【原文标准名称】:汽车用锥形螺旋管堵
【标准号】:JISD2101-1954
【标准状态】:作废
【国别】:日本
【发布日期】:1954-03-29
【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】:
【标准类型】:()
【标准水平】:()
【中文主题词】:闭塞物;道路车辆零部件
【英文主题词】:
【摘要】:
【中国标准分类号】:T32
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:Industrialautomationsystemsandintegration-Productdatarepresentationandexchange-Part224:Applicationprotocol:Mechanicalproductdefinitionforprocessplanningusingmachiningfeatures
【原文标准名称】:工业自动化系统和集成.产品数据表示和交换.第224部分:应用协议:用机械加工特性的加工计划用机械产品定义
【标准号】:ISO10303-224-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-08
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC184
【标准类型】:()
【标准水平】:()
【中文主题词】:应用系统;自动化;自动化系统;计算机应用;数据表示;定义;工业产品;信息交流;制造;计划;产品数据
【英文主题词】:Applicationsystem;Automation;Automationsystems;Computerapplications;Datarepresentation;Definition;Definitions;Industrialproducts;Informationexchange;Manufacturing;Planning;Productdata
【摘要】:ThispartofISO10303specifiestheinformationrequirementsfortherepresentationandexchangeofinformationneededtodefinetheproductdatawhichisnecessaryinthemanufacturingofasinglepieceorassemblyofmechanicalparts.Italsospecifiestheintegratedresourcesnecessarytosatisfytheserequirements.Theproductdataisbasedonexistingpartdesignswhoseshapesarerepresentedbymachiningfeatures.ThispartofISO10303supportsdigitalrepresentationforcomputerintegratedmanufacturing.NOTE1TheapplicationactivitymodelinAnnexFprovidesagraphicalrepresentationoftheprocessandinformationflowswhichformthebasisforthedefinitionofthescopeofthispartofISO10303.ThefollowingarewithinthescopeofthispartofISO10303:—themanufactureofasinglepiecemechanicalpart,andassembliesofsinglepiecepartsformanufacturingpurposes;—partsthataretobemanufacturedbyeithermillingorturningprocesses;—machiningfeaturesfordefiningshapesnecessaryformanufacturing;NOTE2ThemachiningfeaturesetisdefinedinthispartofISO10303.—explicitrepresentationofthe3Dshapeofmachiningfeaturesthroughboundedgeometryrepresentations;—implicitrepresentationofmachiningfeaturesthroughselectionofstandardparameters;—machiningfeaturedefinitionelementsnecessaryforcreatingmachiningformfeatures;—customerorderadministrativedatatotrackreceiptofanorderforaparttotheshopfloor,butnotincludingtrackingoftheorderontheshopfloor;—approvaldatatoauthorizethemanufactureofapart;—requisitionadministrativedatatoidentifyrequirementsandtrackthestatusofmaterialsandequipmentneededtomanufactureapart;—workorderdatatotrackandidentifythestatusofapart;
【中国标准分类号】:N17
【国际标准分类号】:35_240_50
【页数】:1062P;A4
【正文语种】:英语