MIL-HDBK-141

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MIL-HDBK-141, MILITARY STANDARDIZATION HANDBOOK: OPTICAL DESIGN (CHAPTERS 15 THROUGH 28) (5 OCT 1962) [CAUTION - 48 MB DOWNLOAD]., This document provides engineering personnel with an introduction to optical theory, and treats to an advanced level the fundamentals and principles of optical design. It is expected that wide distribution of the methods of design and computation presented in this document will result in more efficient and accurate methods of complying with military optical requirements.
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【英文标准名称】:StandardTestMethodforGravimetricDeterminationofNonvolatileResidue(NVR)inEnvironmentallyControlledAreasforSpacecraft
【原文标准名称】:航天器在环境受控范围内的不挥发残留物重量分析测定的标准试验方法
【标准号】:ASTME1235-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E21.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:gravimetricdetermination;nonvolatileresidue;Aciddecomposition;Aerospaceapplications;Contamination--aerospacematerials/applications;Environmentalcontrol/fate--aerospaceapplications;Gravimetricdetermination;Massperunitarea;Nonvolatilere
【摘要】:TheNVRdeterminedbythistestmethodisthatamountthatcanreasonablybeexpectedtoexistonhardwareexposedinenvironmentallycontrolledareas.TheevaporationofthesolventatornearroomtemperatureistoquantifytheNVRthatexistsatroomtemperature.NumerousothermethodsarebeingusedtodetermineNVR.Thistestmethodisnotintendedtoreplacemethodsusedforotherapplications.1.1Thistestmethodcoversthedeterminationofnonvolatileresidue(NVR)falloutinenvironmentallycontrolledareasusedfortheassembly,testing,andprocessingofspacecraft.1.2TheNVRofinterestisthatwhichisdepositedonsamplingplatesurfacesatroomtemperature:itislefttotheusertoinfertherelationshipbetweentheNVRfoundonthesamplingplatesurfaceandthatfoundonanyothersurfaces.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.
【中国标准分类号】:V04
【国际标准分类号】:49_140
【页数】:13P.;A4
【正文语种】:英语


【英文标准名称】:Geotextilesandgeotextile-relatedproducts-Characteristicsrequiredforuseintheconstructionofcanals
【原文标准名称】:土工织物和土工相关产品.用于运河建造的特性要求
【标准号】:BSEN13255-2001
【标准状态】:现行
【国别】:英国
【发布日期】:2001-02-15
【实施或试行日期】:2001-02-15
【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】:过滤;纺织产品;土工织物;运河;分离;生产计划;加筋;抗拉强度;施工材料;合格;性能试验;耐化学性试验;作标记;纺织材料;定型试验;耐久性;曝光时间;环境试验
【英文主题词】:Canals;CEmarking;Cloth;Conformity;Construction;Constructions;Definition;Definitions;Design;Determination;Ducting;Filtrate;Geotechnics;Geotextiles;Indexes;Indextests;Materialstesting;Measurement;Measuringtechniques;Productioncontrol;Properties;Resistance;Separation;Singlelayers;Specification(approval);Testing;Textiles
【摘要】:ThisEuropeanStandardspecifiestherelevantcharacteristicsofgeotextilesandgeotextile-relatedproductsusedintheconstructionofcanals,andtheappropriatetestmethodstodeterminethesecharacteristics.Theintendeduseofthesegeotextilesorgeotextile-relatedproductsistofulfiloneormoreofthefollowingfunctions:filtration,separation,reinforcementandprotection.Theseparationfunctionisalwaysusedinconjunctionwithfiltrationorreinforcement,accordinglyseparationwillneverbespecifiedalone.Thisstandardisnotapplicabletogeomembranes.ThisstandardprovidesfortheevaluationofconformityoftheproducttothisEuropeanStandardandforfactoryproductioncontrolprocedures.Thisstandarddefinesrequirementstobemetbymanufacturersanddistributorswithregardtothepresentationofproductproperties.NOTE1Particularapplicationcasesornationalspecificationsmaycontainrequirementsregardingadditionalpropertiesand-preferablystandardised-testmethods,iftheyaretechnicallyrelevantandnotconflictingwithEuropeanStandards.NOTE2ThisEuropeanStandardmaybeusedtoderivedesignvaluesbytakingintoaccountfactorswithinthecontextofthedefinitionsgiveninEurocode7(ENV1997-1),e.g.factorsofsafety.Thedesignlifeoftheproductshouldbedetermined,sinceitsfunctionmaybetemporary,asaconstructionexpediency,orpermanent,forthelifetimeofthestructure.
【中国标准分类号】:W59
【国际标准分类号】:59_080_70
【页数】:38P;A4
【正文语种】:英语