【英文标准名称】:Full-flowlubricatingoilfiltersforinternalcombustionengines-Methodsoftestforself-cleaningfilters
【原文标准名称】:内燃机用全流式润滑油过滤器.自洁式过滤器的试验方法
【标准号】:BS7403-11-1998
【标准状态】:现行
【国别】:英国
【发布日期】:1998-02-15
【实施或试行日期】:1998-02-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:流动稳定性;内燃机;润滑系统部件;粒度测量;流量率;试验条件;性能试验;清洁处理;流动;耐久试验;润滑系统;压力试验;粒度分布;过滤器;温度;试验设备;热试验;热阻;滤油器;认可试验;准确度;水分测定
【英文主题词】:Definition;Definitions;Filters;Internalcombustionengines;Lubricationsystems;Oilfilters;Performancetests;Self-cleaning;Testequipment;Testing
【摘要】:ThispartofISO4548specifiestestmethodsforevaluatingthecharacteristicsofself-cleaningoilfiltersforinternalcombustionengines.Itisapplicabletofiltersinwhichself-cleaningiscontinuousorintermittent.Theremovalofretainedparticlesfromthefilterisachievedbyperiodicreversalofthedirectionofthefluidflowthroughtheelements.However,thisalsoappliesmechanicalstressestothefiltermedia.Thetestsspecifiedinthisstandardaredesignedtocheckthefiltrationperformanceoftheelementsundersimulatedoperatingconditionsandtoconfirmtheirabilitytowithstand,withoutdamage,variationsinoilpressure,temperature,directionofflowandthepresenceofwater.TheequipmentandproceduresspecifiedinthispartofISO4548arerecommendedforfiltershavinganominalflowrateofupto1600l/min.
【中国标准分类号】:J95
【国际标准分类号】:21_260
【页数】:32P.;A4
【正文语种】:英语


【英文标准名称】:Microbiologyoffoodandanimalfeedingstuffs-Horizontalmethodforthedetectionandenumerationofcoliforms-Mostprobablenumbertechnique
【原文标准名称】:食品和动物饲料微生物学.大肠杆菌菌落计数和测定的水平方法.最大几率数技术
【标准号】:BSISO4831-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-12-29
【实施或试行日期】:2006-12-29
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:农产品;饲料;细菌纲;大肠杆菌类;计数;定义;测定;食品检验;食品;微生物分析;微生物学;微生物;试验;验证
【英文主题词】:Agriculturalproducts;Animalfeed;Bacteria;Coliformbacteria;Counting;Definition;Definitions;Determination;Foodinspection;Foodproducts;Microbiologicalanalysis;Microbiology;Microorganisms;Testing;Tests;Verification
【摘要】:ThisInternationalStandardgivesgeneralguidelinesforthedetectionandtheenumerationofconforms.Itisapplicableto—productsintendedforhumanconsumptionandforthefeedingofanimals,and—environmentalsamplesintheareaoffoodproductionandfoodhandling.Enumerationiscarriedoutbycalculationofthemostprobablenumber(MPN)afterincubationinaliquidmediumat30°Cor37°C.NOTEThetemperatureissubjecttoagreementbetweenthepartiesconcerned.Inthecaseofmilkandmilkproducts,thetemperatureofincubationis30"C.Thisenumerationmethodisapplicablewhenthenumbersoughtisexpectedtobeintherange1to100permillilitreorpergramoftestsample.AlimitationontheapplicabilityofthisInternationalStandardisimposedbythesusceptibilityofthemethodtoalargedegreeofvariability.TheinformationgiveninClause11providesguidanceontheapplicabilityofthemethodandontheinterpretationoftheresults.
【中国标准分类号】:C53
【国际标准分类号】:07_100_30
【页数】:18P.;A4
【正文语种】:英语