MIL-HDBK-415A
作者:标准资料网 时间:2024-05-16 08:12:32 浏览:9491
来源:标准资料网
MIL-HDBK-415A, MILITARY HANDBOOK DESIGN HANDBOOK FOR FIBER OPTIC COMMUNICATIONS SYSTEMS. The purpose of this handbook is to provide uniform Department of Defense (DoD) guidelines for communication engineers, and installation, operation, and maintenance personnel working with fiber optic communication systems.
【英文标准名称】:StandardSpecificationforPolyethylene(PE)PipeandFittingsforRoofDrainSystems
【原文标准名称】:屋顶排水系统用聚乙烯(PE)管和配件标准规范
【标准号】:ASTMF1901-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:F17.63
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:DWV;pipefittings;pipes;plasticpipes;polyethylene;recycle;wastedisposal(building);Drain/waste/vent(DWV)--polyethylene(PE);Polyethylene(PE)pipe--specifications;Roofingmembranes--specifications
【摘要】:1.1Thisspecificationcoversrequirementsforpolyethylene(PE)pipeandfittingsfornonpressureroofdrainsystems.1.2Thisspecificationcoverspipeandfittingsintendedfornormalresidentialandcommercialusesandisnotintendedforuseinunusualcorrosiveconditions.Note18212;Beforeinstallingpipeforwastedisposaluse,theapprovalofthecognizantbuildingcodeauthorityshallbeobtainedasconditionsnotfoundinnormaluseortemperaturesapproaching140x00B0;F(60x00B0;C)maybeencountered.1.3Pipeisproducedindimensionsbasedonoutsidediametersof32mm(1.250in.)andlargerinaccordancewithSpecificationF714.1.4Theinterchangeabilityofpipeandfittingsmadebydifferentmanufacturersisnotaddressedinthisspecification.Transitionfittingsforjoiningpipeandfittingsofdifferentmanufacturersisprovidedforinthisspecification.1.5Pipeandfittingsarejoinedbytheheat-fusionmethod,bytheelectrofusionmethod,orbyusingmechanicaljoints(excludinginsertfittings)recommendedbythemanufacturer.1.6Inrefereedecisions,theSIunitsshallbeusedformetric-sizedpipeandinch-poundunitsforpipesizedintheIPSsystem(ANSIB36.10).Inallcases,thevaluesgiveninparenthesesareprovidedforinformationonly.1.7Thefollowingsafetyhazardscaveatpertainsonlytothetestmethod,Section7,ofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q81
【国际标准分类号】:23_040_01
【页数】:7P.;A4
【正文语种】:英语
【英文标准名称】:TestMethodforSonicShearStabilityofPolymer-ContainingOils
【原文标准名称】:含聚脂油的声剪切稳定性用试验方法
【标准号】:ANSI/ASTMD2603-2001
【标准状态】:作废
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:润滑剂;石油产品;高聚物;剪切强度;声学测试;测试
【英文主题词】:Lubricants;Petroleumproducts;Polymers;Shearstrength;Sonictesting;Testing
【摘要】:Thistestmethodcoverstheevaluationoftheshearstabilityofanoilcontainingpolymerintermsofthepermanentlossinviscositythatresultsfromirradiatingasampleoftheoilinasonicoscillator.Thistestmethodcanbeusefulinpredictingthecontinuityofthispropertyinanoilwherenochangeismadeinthebasestockorthepolymer.Itisnotintendedthatthistestmethodservetopredicttheperformanceofpolymer-containingoilsinservice.Evidencehasbeenpresentedthatcorrelationbetweenthesheardegradationresultsobtainedbymeansofsonicoscillationandthoseobtainedinmechanicaldevicescanbepoor.Thisisespeciallytrueinthecaseofautomotiveengines.Furtherevidenceindicatesthatthesonictechniquemayratedifferentfamiliesofpolymersinadifferentorderthanmechanicaldevices.Becauseoftheselimitations,thecommitteeunderwhosejurisdictionthistestmethodfallshasdevelopedanalternativesheartestmethodusingadieselinjectornozzle,TestMethodD3945.Whilethattestmethodhasfoundsomeutilityintheevaluationofcrankcaseoils,thestressimpartedtothesamplehasbeenfoundtobeinsufficienttoshearpolymersoftheshear-resistanttypefoundinaircrafthydraulicfluids.Thistestmethodisusedforpolymericadditivespecifications,especiallyinthehydraulicfluidmarket.ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationalpurposesonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:
【正文语种】:英语