基本信息
| 标准名称： | 动物性食品中四环素类药物残留检测 酶联免疫吸附法 |
| 英文名称： | Determination of tetracyclines residue in animal food by immunoassay |
| 中标分类： |
食品 >>
食品综合 >>
标准化、质量管理 |
| ICS分类： |
食品技术 >>
食品综合
|
| 发布部门： | 中华人民共和国农业部 |
| 发布日期： | 2008-04-29 |
| 实施日期： | 2008-04-29 |
| 首发日期： | |
| 作废日期： | |
| 起草单位： | 中国兽医药品监察所 |
| 出版日期： | 2008-04-29 |
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所属分类： 食品 食品综合 标准化 质量管理 食品技术 食品综合
【英文标准名称】:StandardTestMethodforDirect-CurrentMagneticPropertiesofMaterialsUsingtheBallisticMethodandRingSpecimens
【原文标准名称】:用环形试验法和冲击法测定材料的直流磁性能的标准试验方法
【标准号】:ASTMA596/A596M-1995(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【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】:A06.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:ballistictest;coerciveforce;directcurrent;Epstein;induction;magneticfieldstrength;magnetictest;permeability;residualinduction;Ballistictest;Coerciveforce;D-cmagneticproperties;Direct-currentballisticmethods;Direct-currentp
【摘要】:Testmethodsusingsuitablering-typespecimensarethepreferredmethodsofdeterminingthebasicmagneticpropertiesofamaterialcausedbytheabsenceofdemagnetizingeffectsandarewellsuitedforspecificationacceptance,serviceevaluation,andresearchanddevelopment.Providedthetestspecimenisrepresentativeofthebulkmaterialasisusuallythecaseforthinstripandwire,thistestisalsosuitablefordesignpurposes.Whenthetestspecimenisnotnecessarilyrepresentativeofthebulkmaterialsuchasaringmachinedfromalargeforgingorcasting,theresultsofthistestmethodmaynotbeanaccurateindicatorofthemagneticpropertiesofthebulkmaterial.Insuchinstances,thetestresultswhenviewedincontextofpastperformancehistorywillbeusefulforjudgingthesuitabilityofthecurrentmaterialfortheintendedapplication.1.1Thistestmethodcoversdcballistictestingforthedeterminationofbasicmagneticpropertiesofmaterialsintheformofring,toroidal,link,double-lappedEpsteincores,orotherstandardshapeswhichmaybecut,stamped,machined,orgroundfromcast,compacted,sintered,forged,orrolledmaterials.Itincludestestsfornormalinductionandhysteresistakenunderconditionsofsteepwavefrontreversalsofthedirect-currentmagneticfieldstrength.1.2ThistestmethodshallbeusedinconjunctionwithPracticeA34/A34M.1.3Thistestmethodissuitableforatestingrangefromverylowmagneticfieldstrengthupto200ormoreOe[15.9ormorekA/m].Thelowerlimitisdeterminedbyintegratorsensitivityandtheupperlimitbyheatgenerationinthemagnetizingwinding.Specialtechniquesandshortdurationtestingmayextendtheupperlimitofmagneticfieldstrength.1.4Testingunderthistestmethodisinherentlymoreaccuratethanothermethods.Whenspecifieddimensionalorshaperequirementsareobserved,themeasurementsareagoodapproximationtoabsoluteproperties.Testaccuracyavailableisprimarilylimitedbytheaccuracyofinstrumentation.Inmostcases,equivalentresultsmaybeobtainedusingTestMethodA773/A773MorthetestmethodsofIECPublication60404-4.1.5Thistestmethodpermitsachoiceoftestspecimentopermitmeasurementofpropertiesinanydesireddirectionrelativetothedirectionofcrystallographicorientationwithoutinterferencefromexternalyokesystems.1.6ThesymbolsandabbreviateddefinitionsusedinthistestmethodappearinFig.1andSections5,6,9,and10.FortheofficialdefinitionsseeTerminologyA340.Notethatthetermfluxdensityusedinthisdocumentissynonymouswiththetermmagneticinduction.1.7Warningx2014;MercuryhasbeendesignatedbyEPAandmanystateagenciesasahazardousmaterialthatcancausecentralnervoussystem,kidney,andliverdamage.Mercury,oritsvapor,maybehazardoustohealthandcorrosivetomaterials.Cautionshouldbetakenwhenhandlingmercuryandmercury-containingproducts.SeetheapplicableproductMaterialSafetyDataSheet(MSDS)fordetailsandEPAx2019;swebsite(http://www.epa.gov/mercury/faq.htm)foradditionalinformation.Usersshouldbeawarethatsellingmercuryormercury-containingproducts,orboth,inyourstatemaybeprohibitedbystatelaw.1.8Thevaluesstatedineithercustomary(cgs-emuandinch-pound)unitsorSIunitsaretoberegardedseparatelyasstandard.Withinth......
【中国标准分类号】:H21
【国际标准分类号】:29_030;29_100_10
【页数】:8P.;A4
【正文语种】:英语