ANSI/ASTM D4055-2001 薄膜过滤法测定戊烷不溶性
时间:2024-05-09 10:55:01 来源: 标准资料网 作者：标准资料网 阅读：9568
【英文标准名称】:PentaneInsolublesbyMembraneFiltration(05.02)
【原文标准名称】:薄膜过滤法测定戊烷不溶性
【标准号】:ANSI/ASTMD4055-2001
【标准状态】:作废
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:过滤;试验;石油产品
【英文主题词】:petroleumproducts;filtration;testing
【摘要】:
【中国标准分类号】:E30
【国际标准分类号】:75_100
【页数】:
【正文语种】:英语
MIL-STD-2301A (NOTICE 1), DEPARTMENT OF DEFENSE INTERFACE STANDARD: COMPUTER GRAPHICS METAFILE (CGM) IMPLEMENTATION STANDARD FOR THE NATIONAL IMAGERY TRANSMISSION FORMAT STANDARD (31 MAR 2004) [NO S/S DOCUMENT]., The purpose of this notice is to inform users of the change in name of the preparing activity fromthe National Imagery and Mapping Agency (NIMA) to the National Geospatial-IntelligenceAgency (NGA).【英文标准名称】:Foodstuffs—Samplecomminutionformycotoxinsanalysis—Comparisonbetweendrymillingandslurrymixing
【原文标准名称】:食品.真菌毒素分析的抽样粉碎.干磨和泥浆混合的对比
【标准号】:BSPDCEN/TR15298-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-10-31
【实施或试行日期】:2006-10-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Acomparisonwasmadebetweendrymillingandslurrymixingascomminutionstepprecedingmycotoxinsanalysis.SuchinrespecttoEClegislationthatconsistsofsampleschemesupto30kg.Cacao,greencoffee,almondsandpistachiosamplesof10kgweremilledbyaRASmillandallthreesub-sampleswerecompletelyanalysedforaflatoxinB1orOchratoxinA.Thedifferencesinanalyticalresultsareexplainedbymeasurementsofparticlesizedistributionsofbothmillingtypes.Theobtaineddataarecomparedwithliteraturedataoncoefficientsofvariation(CV)forvariousmillingprocedures.FordrymillingCVvaluesweregenerallynotbelow20%foraflatoxinB1levelsupto38μg/kginpeanuts,whereasslurrymixingcouldachieveCVvaluesbelow5%ataflatoxinB1levelsdownto4μg/kginpistachios.Measurementsalsoshowedpossibledifferenceinmycotoxincontentofasamplebetweenbothmillingtypes.Thiscouldleadtofalsepositiveornegativeresultswhenrejectingoracceptingalot,asthisisbasedonthesampleresult.ItwasconcludedthatslurriescontainsmallerparticlesthandrymilledsamplesandthusgeneratethelowestpossibleCVvalueswhichinturnleadstobettersamplehomogenisation.
【中国标准分类号】:X04
【国际标准分类号】:67_050
【页数】:22P.;A4
【正文语种】:英语