BS EN 60318-2-1998 电声学.人头和耳模拟器.在超高频范围内测声耳机校正用间歇听力耦合器

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【英文标准名称】:Electroacoustics-Simulatorsofhumanheadandear-Aninterimacousticcouplerforthecalibrationofaudiometricearphonesintheextendedhigh-frequencyrange
【原文标准名称】:电声学.人头和耳模拟器.在超高频范围内测声耳机校正用间歇听力耦合器
【标准号】:BSEN60318-2-1998
【标准状态】:作废
【国别】:英国
【发布日期】:1998-12-15
【实施或试行日期】:1998-12-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电连接器;校正;耳机;声学;电信;位置;听力测定;高频;耦合器;头戴送受话器;声学设备;声学测量;电声器件;通信设备;听力计;仿真耳
【英文主题词】:Acousticcouplers;Acoustics;Adapters;Audiometry;Calibration;Couplers;Dimensions;Earphones;Ears;Electricalengineering;Environment;Environmentalcondition;Head(anatomy);Headphones;Microphones;Simulators
【摘要】:ThispartofIEC60318specifiestwodifferentadaptersandtheremovableconicalringtobeusedwiththeIEC60318-1earsimulatortoprovideaninterimacousticcouplerforthecalibrationofcertainaudiometricearphonesdesignedforuseintheextendedhigh-frequencyrangefrom8kHzupto16kHz.EnvironmentalconditionsforthecalibrationanduseofthecoupleraregiveninIEC60318-1.
【中国标准分类号】:L31
【国际标准分类号】:17_140_50
【页数】:11P.;A4
【正文语种】:英语


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【英文标准名称】:Cosmetics-Microbiology-Detectionofspecifiedandnon-specifiedmicroorganisms
【原文标准名称】:化妆品.微生物学.特异性和非特异性微生物的检测
【标准号】:ISO18415-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-09-01
【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/TC217
【标准类型】:()
【标准水平】:()
【中文主题词】:好气细菌;化学分析和测试;化学试剂;大肠杆菌;化妆品;培养基;培养(生物);定义;检验(质量保证);保健;卫生学;识别;调查;微生物分析;微生物学;微生物;假单胞菌;危险分析;皮肤;葡萄球菌属
【英文主题词】:Aerobicbacteria;Chemicalanalysisandtesting;Chemicalreagents;Colibacteria;Cosmetics;Culturemedia;Cultures(biology);Definition;Definitions;Escherichiacoli;Examination(qualityassurance);Healthprotection;Hygiene;Identification;Investigations;Microbiologicalanalysis;Microbiology;Micro-organisms;Microorganisms;Pseudomonas;Riskanalysis;Skin(body);Staphylococcus
【摘要】:ThisInternationalStandardgivesgeneralguidelinesforthedetectionandidentificationofspecifiedmicroorganismsincosmeticproductsaswellasforthedetectionandidentificationofotherkindsofaerobicmesophilicnon-specifiedmicroorganismsincosmeticproducts.MicroorganismsconsideredasspecifiedinthisInternationalStandardmightdifferfromcountrytocountryaccordingtonationalpracticesorregulations.Mostofthemconsideredasspecifiedmicroorganismsincludeoneormoreofthefollowingspecies:Pseudomonasaeruginosa,Escherichiacoli,StaphylococcusaureusandCandidaalbicans.Inordertoensureproductqualityandsafetyforconsumers,itisadvisabletoperformanappropriatemicrobiologicalriskanalysisinordertodeterminethetypesofcosmeticproducttowhichthisInternationalStandardisapplicable.Productsconsideredtopresentalowmicrobiologicalriskincludethosewithlowwateractivity,hydro-alcoholicproducts,extremepHvalues,etc.ThemethoddescribedinthisInternationalStandardisbasedonthedetectionofmicrobialgrowthinanonselectiveliquidmedium(enrichmentbroth)suitabletodetectmicrobialcontamination,followedbyisolationofmicroorganismsonnon-selectiveagarmedia.Othermethodscanbeappropriatedependingonthelevelofdetectionrequired.InthisInternationalStandardspecificindicationsaregivenforidentificationofPseudomonasaeruginosa,Escherichiacoli,StaphylococcusaureusandCandidaalbicans.OthermicroorganismsthatgrowundertheconditionsdescribedinthisInternationalStandard,maybeidentifiedbyusingsuitabletestsaccordingtoageneralscheme(seeAnnexA).Otherstandards(e.g.,ISO18416,ISO21150,ISO22717,ISO22718)maybeappropriate.Becauseofthelargevarietyofcosmeticproductswithinthisfieldofapplication,thismethodmightnotbesuitedineverydetail,tosomeproducts(e.g.certainwater-immiscibleproducts).Othermethods(e.g.automated)canbesubstitutedforthetestpresentedhereprovidedthattheirequivalencehasbeendemonstratedorthemethodhasbeenotherwisevalidated.
【中国标准分类号】:Y42
【国际标准分类号】:07_100_99;71_100_70
【页数】:24P.;A4
【正文语种】:英语


【英文标准名称】:Milk-Determinationofnitrogencontent-Block-digestionmethod(Semi-microrapidroutinemethod)
【原文标准名称】:牛乳.氮含量的测定.批溶解法(半微观快速常规法)
【标准号】:BSISO8968-3-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-09-09
【实施或试行日期】:2004-09-09
【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】:
【英文主题词】:
【摘要】:ThispartofISO89681|IDF20specifiesamethodforthedeterminationofthenitrogencontentofliquid,wholeorskimmedmilk.Itconcernsasemi-microrapidroutinemethodfollowingtheblock-digestionprinciple.NOTEThemethodisamorerapidmethodthanthatdescribedinISO8968-1|IDF20-1andISO8968-2|IDF20-2sincethedigestiontimeisreducedbytakingalowermassoftestportionandusinghydrogenperoxidetogetherwithsulfuricacidandacatalystinthedigestion.
【中国标准分类号】:X16
【国际标准分类号】:67_100_10
【页数】:20P;A4
【正文语种】:英语