SY 5012-1980 双缸双作用泥浆泵 活塞压板

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基本信息
标准名称:双缸双作用泥浆泵 活塞压板
中标分类: 机械 >> 通用机械与设备 >> 泵
替代情况:被SY/T 5002-96代替
发布日期:
实施日期:1994-03-01
首发日期:
作废日期:
出版日期:
页数:2页
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引用标准

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所属分类: 机械 通用机械与设备 泵
下载地址: 点击此处下载
【英文标准名称】:StandardPracticeforFieldIdentificationofCoatings
【原文标准名称】:涂层现场识别的标准实施规程
【标准号】:ASTMD5043-2004(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:D01.46
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:coatingidentification;fieldidentification;fieldtesting;paintfieldanalysis;Coatings;Identification
【摘要】:Informationaboutthegenerictypeofcoatingonasurfaceisrequiredtoselectcompatiblecoatingsforrepaintingandcanbeusedwhenevaluatingtheperformanceofacoatinginanenvironmentindecisionsonupgradingorreplacingacoatingsystem.Thisguideprovidesasystematicprocedureforidentifyingthegenerictypeofacoating.Theprocedurecanbeperformedinthefieldbypersonnelwithlimitedlaboratoryexperience,andrequiresaminimumofequipmentandmaterials.1.1Thispracticedescribesproceduresandportableapparatusfordeterminingthegenerictypeofcoatingfilmsmostlikelytobeencounteredonstructures.Thecoatingcaneitherbeweatheredfromexposureorbefreshlyapplied.1.2MostcommonlyusedcoatingscanbedividedintothebroadcategoriesandsubgroupsshowninTable1onthebasisofthenonvolatilecomponent(generictypes)oftheirvehicle(filmformingresin,binder).Althoughthecuringofsomecoatingsinvolvesmorethanoneprocessandcoatingsmaycontainmorethanonetypeofresin,theycanusuallybeassignedtooneofthebasicclassesandgenerictypeslistedinTable1.1.3Forfieldexposedcoatings,itissuggestedthatthesetestmethodsbeusedaspartofacompleteevaluationofacoatedsurfaceasitisfrequentlyhelpfultoconsidertheenvironmentofexposureandhowthecoatinghasperformedintheenvironmentwhendrawingconclusionsfromthesetests.1.4Theseprocedureswillnotresultintheidentificationofcomponentsofacoatingbeyondgeneralclassificationofthecoatingbygenerictypeandarenotappropriateifmoredetailedanalysisisrequired,forexample,asapartoffailureanalysisortoidentifybetweendifferentmanufacturersofthesametypeofcoating.Theyalsomaynotbedefinitiveenoughtoidentifycomplexsystemsthatincludemultiplelayersofdifferentgenerictypesofcoatings.1.5Theevaluationofresultsisquitesubjective.Practiceandexperiencearerequiredtominimizemisinterpretation.Repeattestsmayberequired.1.6Noneofthetestistobetakenaloneasgroundsforidentifyingthegenerictype.Onlythecombinationofresultsfromseveralorallofthetestsistobeusedinconclusionsregardinggenerictypes.1.7ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatementssee5.3.4,6.3.1,6.3.3,7.4,and8.4.
【中国标准分类号】:A29
【国际标准分类号】:25_220_20
【页数】:6P.;A4
【正文语种】:英语


Product Code:SAE AS21924
Title:Union, Flareless Tube, Bulkhead and Universal
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope: Scope unavailable.
Rationale: Scope unavailable.