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MIL-HDBK-454B

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MIL-HDBK-454B, DEPARTMENT OF DEFENSE HANDBOOK: GENERAL GUIDELINES FOR ELECTRONIC EQUIPMENT (15 APR 2007) [SUPERSEDING MIL-HDBK-454A AND MIL-STD-454N]., This handbook is the technical baseline for the design and construction of electronic equipment for the Department of Defense. It captures in one document, under suitable subject heading, fundamental design guidelines for multiple general electronic specifications. The opportunity to focus on a single document, afforded to contractors, results in substantial savings to the Government. This handbook was prepared by, and is regularly updated through, the cooperative efforts of Government and industry. The documents listed below are not necessarily all of the documents referenced herein, but are those needed to understand the information provided by this handbook. (i) DOD-E-8983 Electronic Equipment, Aerospace, Extended Space Environment, General Specification for.; (ii) MIL-F-18870 Fire Control Equipment, Naval Ship and Shore, General Specification for.; (iii) MIL-PRF-28800 Test Equipment for Use with Electrical and Electronic Equipment, General Specification for.; and (iv) MIL-HDBK-2036 Electronic Equipment Specifications, Preparation of.
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【英文标准名称】:StandardSpecificationforCelluloseAcetateMoldingandExtrusionCompounds
【原文标准名称】:乙酸纤维素模制和挤制化合物的标准规范
【标准号】:ASTMD706-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D20.15
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:塑料;模制材料;挤压;化合物;乙酸纤维素
【英文主题词】:celluloseacetate;classificationsystem;linecallout;plastic;recycled;specification
【摘要】:1.1Thisspecificationcoversrequirementsforcelluloseacetatethermoplasticcompoundsplasticizedwitheitherdiethylphthalateordimethylphthalateandaresuitableforinjectionmoldingandextrusion.Thesecompoundshaveanacetylcontentbetween39and40%.Itdoesnotincludematerialscompoundedforspecialapplication.Cellulosicplasticmaterials,beingthermoplastic,arereprocessableandrecyclable.Thisspecificationallowsfortheuseofthosecellulosicmaterials,providedthatallspecificrequirementsofthisspecificationaremet.1.2Thepropertiesincludedinthisspecificationarethoserequiredtoidentifythecompositionscovered.Theremaybeotherrequirementsnecessarytoidentifyparticularcharacteristicsimportanttospecializedapplications.ThesemaybespecifiedbyusingthesuffixesasgiveninSection5.1.3Thisclassificationsystemandsubsequentlinecallout(specification)areintendedtoprovideameansofcallingoutplasticmaterialsusedinthefabricationofenditemsorparts.Itisnotintendedfortheselectionofmaterials.Materialselectionshouldbemadebythosehavingexpertiseintheplasticfieldaftercarefulconsiderationofthedesignandperformancerequiredofthepart,environmenttowhichitwillbeexposed,fabricationprocesstobeemployed,costsinvolved,andinherentpropertiesofthematerialotherthanthosecoveredbythisclassificationsystem.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.1.5Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodportion,Section,ofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThereisnoequivalentorsimilarISOstandard.
【中国标准分类号】:G33
【国际标准分类号】:83_080_20;83_140_99
【页数】:6P.;A4
【正文语种】:


【英文标准名称】:Metallicmaterials.Charpyimpacttest.Part2:verificationofthetestingmachine(pendulumimpact).
【原文标准名称】:金属材料.夏比冲击试验.第2部分:试验机的检定(摆锤冲击)
【标准号】:NFA03-012-1992
【标准状态】:作废
【国别】:法国
【发布日期】:1992-12-01
【实施或试行日期】:1992-12-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Bendtesting;Characterisations;Charpy;Charpyimpacttests;Definitions;Impacttesting;Impacttestingmachines;Impacttests;Installation;Materialtestingmachines;Materialtests;Materials;Materialstesting;Mechanicaltesting;Metallic;Metallicmaterials;Metals;Notched-barimpactbendingtests;Pendulumimpacttester;Pendulumimpacttestingmachines;Preparation;Referencedevices;Referencematerials;Referencemethods;Steels;Symbols;Testequipment;Testspecimens;Testing;Verification
【摘要】:
【中国标准分类号】:H20
【国际标准分类号】:77_040_10
【页数】:25P;A4
【正文语种】:其他