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ISO 16654-2001 食品和动物饲料的微生物学检测大肠杆菌0157的水平方法

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【英文标准名称】:Microbiologyoffoodandanimalfeedingstuffs-HorizontalmethodforthedetectionofEscherichiacoli0157
【原文标准名称】:食品和动物饲料的微生物学检测大肠杆菌0157的水平方法
【标准号】:ISO16654-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-05
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC34
【标准类型】:()
【标准水平】:()
【中文主题词】:微生物;微生物分析;细菌纲;定义;肉;调查;食品检验;生化分析法;食品;验证;微生物学;肉制品;饲料;试样;试验;试样制备;大肠杆菌;
【英文主题词】:Animalfeed;Bacteria;Biochemicalmethodsofanalysis;Chemicals;Chemistry;Colibacteria;Definitions;Escherichiacoli;Foodhygiene;Foodinspection;Foodproducts;Foodstuff;Investigations;Meat;Meatproducts;Microbiologicalanalysis;Microbiology;Micro-organisms;Microorganisms;Samples;Samplingmethods;Specimenpreparation;Testing;Verification
【摘要】:ThisInternationalStandardspecifiesahorizontalmethodforthedetectionofEscherichiacoliserogroupO157.Subjecttothelimitationsdiscussedintheintroduction,thisInternationalStandardisapplicabletoproductsintendedforhumanconsumptionorforanimalfeedingstuffs.
【中国标准分类号】:C62
【国际标准分类号】:07_100_30
【页数】:13P;A4
【正文语种】:英语


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【英文标准名称】:StandardTestMethodsforAbsorbanceofPolyethyleneDuetoMethylGroupsat1378cm
【原文标准名称】:含甲基团的聚乙烯对波长为1378cm-1光波吸收率的试验方法
【标准号】:ASTMD2238-1992(2004)
【标准状态】:现行
【国别】:
【发布日期】:1992
【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】:D20.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;甲基;保持能力;甲基化合物;塑料;聚乙烯
【英文主题词】:Fouriertransformspectroscopy;infraredspectroscopy;methylgroups;polyethylene;quantitativeanalysis
【摘要】:Wheninterpretedwiththeaidofappropriatecalibrationdata,eithertestmethodcanbeusedtocomparethetotalmethylcontentsofpolyethylenesmadebysimilarprocesses.Suchinformationcanbeinterpretedintermsofspecificalkylgroupswiththeaidofdataoninfraredabsorptionatcertainotherwavelengths(3).Note48212;Thebiasofdeterminationoftheconcentrationoftotalalkylgroupsdependsonknowingtheconcentrationsofmethylandethylbranchespresent,sincethesebrancheshaveanomalouslyhighabsorptivitiespergroupat1378cmx2212;1(7.25x03BC;m).Knowledgeoftotalmethylgroupsinpolyethylene,whencombinedwithdataonmolecularweightandonreactiveendgroupssuchasvinyl,canleadtoassignmentofend-groupstructuresandcanshedlightuponpolymerizationmechanisms.Dataontotalmethylgroupsinpolyethylenecanbecorrelatedqualitativelywithcertainpolymerpropertiessuchasmeltingpoint,density,stiffness,andothermechanicalpropertiesthatarecloselydependentonthedegreeofcrystallinityofthepolymer.Thesetestmethodsareespeciallysuitableforresearch.Theyhavenotbeentestedforuseinmanufacturingcontrol.1.1Thesetestmethodscovermeasurementbyinfraredabsorptionspectrophotometryofthe1378.4-cm1(7.255-m)bandinpolyethyleneduetomethylgroups.(1,2,4-7)Twotestmethodsarecovered:1.1.1TestMethodAusescompensationwithastandardsamplefilmorwedgeofknownmethylcontent.1.1.2TestMethodBusescompensationwithawedgeofpolymethyleneorapolyethyleneofknownlowmethylcontent.1.2ThesetestmethodsareapplicabletopolyethylenesofTypesI(density910to925kg/m3),II(density926to940),andIII(density941to965).Note18212;Fordeterminationofdensity,seeSpecificationsD1248.Note28212;IncasesofTypeIIIpolyethylenewithdensitiesgreaterthan0.950g/cm3,differentresultsareobtainedwiththetwotestmethods.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninbracketsareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninSection7.Note38212;ThereisnosimilarorequivalentISOstandardcoveringthesubjectmatterofthesetestmethods.
【中国标准分类号】:G32
【国际标准分类号】:83_080_20
【页数】:7P.;A4
【正文语种】:


【英文标准名称】:Intrusiondetection-Shockdetectors,runnerandball-Specificstandard.
【原文标准名称】:侵入者探测.离心调节锤和弹子撞击的检测器.特殊标准
【标准号】:NFC48-228-1987
【标准状态】:现行
【国别】:法国
【发布日期】:1987-06-01
【实施或试行日期】:1987-06-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:A91
【国际标准分类号】:13_310
【页数】:8P;A4
【正文语种】:其他