【英文标准名称】:Pulps-DeterminationofKappanumber
【原文标准名称】:纸浆.卡伯(KAPPA)值的测定
【标准号】:BSISO302-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-03-30
【实施或试行日期】:2007-03-30
【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】:漂白;化学的;定义;滤水性能试验;描述;测定;硬度;解释;K值;木质素;木质素浓缩物;纸;纸浆;准备;试剂;再生纸浆;抽样方法;测试
【英文主题词】:Bleaching;Chemical;Definitions;Degreeofdelignification;Descriptions;Determination;Hardness;Interpretations;Kappanumber;Lignin;Ligninconcentrate;Paper;Paperpulp;Preparation;Pulp;Reagents;Samplingmethods;Testing
【摘要】:ThisInternationalStandardspecifiesamethodforthedeterminationoftheKappanumberofpulp.TheKappanumberisanindicationofthelignincontentorbleachabilityofpulp.ThisInternationalStandardisapplicabletoallkindsofchemicalpulpsandsemi-chemicalpulpswithintheKappanumberrange1to100.ForpulpswithaKappanumberexceeding100,usethechlorine-consumptionprocedure(ISO3260)todescribethedegreeofdelignification.Toachievethegreatestprecisionandaccuracy,thesamplesizeshouldbeadjustedsothattheconsumptionofpermanganatefallsbetween20%and60%oftheamountadded.NOTEThereisnogeneralandunambiguousrelationshipbetweentheKappanumberandthelignincontentofpulp.Therelationshipvariesaccordingtothewoodspeciesanddelignificationprocedure.AllcompoundsoxidizedbyKMnC>4,notonlylignin,willincreasetheconsumptionofKMnC>4,andtherebyincreasetheKappanumber(see[7]).IftheKappanumberistobeusedtoderiveanindexofpulplignincontent,specificrelationshipswillhavetobedevelopedforeachpulptype.
【中国标准分类号】:Y31
【国际标准分类号】:85_040
【页数】:18P.;A4
【正文语种】:英语


【英文标准名称】:Refrigerators,frozen-foodstoragecabinetsandfoodfreezersforhouseholdandsimilaruse;measurementofemissionofairborneacousticalnoise
【原文标准名称】:冷藏箱家用和类似用途冷冻食品储藏柜和食品冷冻柜空气噪声测量
【标准号】:ISO8960-1991
【标准状态】:作废
【国别】:国际
【发布日期】:1991-08
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC86
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;冷藏柜;家用设备;噪声;声学试验;声学;空气噪声测量;制冷机
【英文主题词】:
【摘要】:Theheading"Replacement"indicatesthatthetextgiveninthisstandardreplacestherelevanttextinIEC704-1;similarlytheheading"Addition"indicatesthatthetextgiveninthisstandardsupplementstherelevanttextinIEC704-1.AnnexesAandBareforinformationonly.
【中国标准分类号】:Y61;Z32
【国际标准分类号】:17_140_20;97_040_30
【页数】:5P;A4
【正文语种】:英语