ISO 302-2015 纸浆.卡伯(KAPPA)值的测定

　　ISO 302-2015

　　中文名称：纸浆.卡伯(KAPPA)值的测定

　　英文名称：Pulps -- Determination of Kappa number

　　原文名称：Pulps -- Determination of Kappa number

　　范 围：ISO 302:2015 specifies a method for the determination of the Kappa number of pulp. The Kappa number is an indication of the lignin content or bleachability of pulp. ISO 302:2015 is applicable to all kinds of chemical pulps and semi-chemical pulps within the Kappa number range 1 to 100. For pulps with a Kappa number exceeding 100, use the chlorine-consumption procedure (ISO 3260) to describe the degree of delignification. To achieve the greatest precision and accuracy, the sample size has to be adjusted so that the consumption of permanganate falls between 20 % and 60 % of the amount added. NOTE There is no general and unambiguous relationship between the Kappa number and the lignin content of pulp. The relationship varies according to the wood species and delignification procedure. All compounds oxidized by KMnO4, not only lignin, will increase the consumption of KMnO4, and thereby increase the Kappa number.[8] If the Kappa number is to be used to derive an index of pulp lignin content, specific relationships will have to be developed for each pulp type.

　　发布日期：2015-08-01

　　实施日期：2015-08-01

　　标准组织：国际标准化组织标准(ISO)

　　ICS分类号：(85.040)纸浆

　　中国标准分类号：(Y30)造纸综合

　　同一中标分类下的其他标准

　　• ASTM D982-2005(2009)纸张纸板中有机氮的试验方法

　　• ASTM E875-2010造纸业水基产品用作为防腐剂的真菌抑止剂效力的试验方法

　　• ASTM F767-1998(2008)化学无碳纸曝光图象稳定性试验方法

　　• BS 2987-1958纸试验用统计学的注解

　　• BS 3137-1972纸、纸板破裂强度的测定方法

　　• ASTM D817-1996(2010)测试醋酸丙酸纤维素和乙酸丁酸纤维素的试验方法

　　• ASTM D817-2012

　　• ASTM D871-1996(R2010)

　　• ASTM D871-1996(2010)测试醋酸纤维素的试验方法

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