BS 9764-1988 经质量评定的无穿透镀膜孔连接的带或不带硬化成份材料的单面或双面挠性印制电路板制造商性能鉴定用分规范
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来源:标准资料网
【英文标准名称】:Sectionalspecificationforcapabilityapprovalofmanufacturersofsingle-ordouble-sidedflexibleprintedwiringboardsofassessedqualitywithoutthroughholeconnectionsandwithorwithoutrigidizingcomponentmaterials
【原文标准名称】:经质量评定的无穿透镀膜孔连接的带或不带硬化成份材料的单面或双面挠性印制电路板制造商性能鉴定用分规范
【标准号】:BS9764-1988
【标准状态】:作废
【国别】:英国
【发布日期】:1988-10-31
【实施或试行日期】:1988-10-31
【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】:印制电路板;双;精整;电子设备及元件;质量保证体系;能力鉴定;厚度;布置;试验条件;试样;金属覆层;统计质量控制;质量管理;式样;旁边;印制电路;认可试验;缺陷与故障;尺寸;抽样方法;验收检验;检验;规范(批准);印制电路基板;单;性能;评估的质量;柔性材料
【英文主题词】:
【摘要】:SpecifiesapplicabletestsandrequirementstakenfromthoselistedinBS9760.Alsotherequirementsforcapabilityapprovalandforqualityconformanceduringmanufacture.
【中国标准分类号】:L30
【国际标准分类号】:31_180
【页数】:40P;A4
【正文语种】:英语
【英文标准名称】:Naturalstone-Testmethods-Determinationofwaterabsorptionatatmosphericpressure
【原文标准名称】:天然石料.试验方法.大气压下吸水性的测定
【标准号】:BSEN13755-2002
【标准状态】:作废
【国别】:英国
【发布日期】:2002-02-27
【实施或试行日期】:2002-02-27
【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;建筑;测定;试验;材料试验;符号;吸水率;准备;方法;大气压;天然石料;浸渍
【英文主题词】:Atmosphericpressures;Construction;Determination;Immersion;Materialstesting;Methods;Naturalstone;Naturalstones;Preparation;Symbols;Testspecimens;Testing;Waterabsorption
【摘要】:ThisEuropeanStandardspecifiesamethodfordeterminingthewaterabsorptionofnaturalstone-seeEN12670forterminologyandEN12440fordenomination-byimmersioninwateratatmosphericpressure.
【中国标准分类号】:Q21
【国际标准分类号】:73_020;91_100_15
【页数】:12P;A4
【正文语种】:英语
【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】:
