【英文标准名称】:RAWMATERIALSFORELASTOMERINDUSTRY.CARBONBLACKVOCABULARY.
【原文标准名称】:合成橡胶工业原料.碳黑有关词汇
【标准号】:NFT45-101-1972
【标准状态】:作废
【国别】:法国
【发布日期】:1972-05
【实施或试行日期】:1972-04-25
【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】:塑料和橡胶技术;词汇;原材料;橡胶工业;橡胶;炭黑;弹性体
【英文主题词】:
【摘要】:
【中国标准分类号】:G49
【国际标准分类号】:83_040_20;01_040_83
【页数】:3P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforQuantificationofaPseudomonasaeruginosaBiofilmGrownUsingaDripFlowBiofilmReactorwithLowShearandContinuousFlow
【原文标准名称】:用低剪切和连续流的滴灌流生物膜反应器量化铜绿假单胞菌(Pseudomonasaeruginosa)生物膜生长的标准试验方法
【标准号】:ASTME2647-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E35.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:biofilm;coupon;growthreactor;Pseudomonasaeruginosa;reactor;sampling;shear
【摘要】:Vegetativebiofilmbacteriaarephenotypicallydifferentfromsuspendedcellsofthesamegenotype.Biofilmgrowthreactorsareengineeredtoproducebiofilmswithspecificcharacteristics.Alteringeithertheengineeredsystemoroperatingconditionswillmodifythosecharacteristics.Thepurposeofthistestmethodistodirectauserinhowtogrow,sampleandanalyzeaPseudomonasaeruginosabiofilmunderlowfluidshearandclosetotheair/liquidinterfaceusingthedripflowreactor.ThePseudomonasaeruginosabiofilmthatgrowshasasmoothappearanceandislooselyattached.Microscopically,thebiofilmissheet-likewithfewarchitecturaldetails.Thislaboratorybiofilmcouldrepresentthosefoundonproducesprayers,onfoodprocessingconveyorbelts,oncatheters,inlungswithcysticfibrosisandoralbiofilms,forexample.Thebiofilmgeneratedinthedripflowreactorisalsosuitableforefficacytesting.Afterthe54hgrowthphaseiscomplete,theusermayaddthetreatmentinsituorharvestthecouponsandtreatthemindividually.ResearchhasshownthatP.aeruginosabiofilmsgrowninthedripflowreactorwerelessresistanttodisinfectionthanbiofilmsgrownunderhighshearconditions.1.1ThistestmethodspecifiestheoperationalparametersrequiredtogrowarepeatablePseudomonasaeruginosabiofilmclosetotheair/liquidinterfaceinareactorwithacontinuousflowofnutrientsunderlowfluidshearconditions.Theresultingbiofilmisrepresentativeofgeneralizedsituationswherebiofilmexistsattheair/liquidinterfaceunderlowfluidshearratherthanrepresentativeofoneparticularenvironment.1.2Thistestmethodusesthedripflowbiofilmreactor.Thedripflowreactor(DFR)isaplugflowreactorwithlaminarflowresultinginlowfluidshear.Thereactorisversatileandmayalsobeusedforgrowingand/orcharacterizingdifferentspeciesofbiofilms.1.3Thistestmethoddescribeshowtosampleandanalyzebiofilmforviablecells.Biofilmpopulationdensityisrecordedaslogcolonyformingunitspersurfacearea.1.4Basicmicrobiologytrainingisrequiredtoperformthistestmethod.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J88
【国际标准分类号】:13_060_30;91_010_20
【页数】:5P.;A4
【正文语种】:英语
基本信息
标准名称: | 冷冲模限位支承装置 铰链式支承装置 |
英文名称: | Supporting set for cold press dies--Supporting mechanism with hinge joint |
中标分类: |
机械 >>
工艺装备 >>
模具 |
替代情况: | 原标准号GB 2869.4-81 |
发布日期: | |
实施日期: | 2001-10-01 |
首发日期: | |
作废日期: | 2000-01-11 |
出版日期: | |
页数: | 3页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类: 机械 工艺装备 模具