ISO 778:2005 纸张、纸板和纸浆 酸可溶铜含量的测定

标准编号：ISO 778:2005

中文名称：纸张、纸板和纸浆 酸可溶铜含量的测定

英文名称：Paper, board and pulp — Determination of acid-soluble copper

发布日期：2005-05

标准范围

ISO 778:2005规定了用原子吸收光谱法或等离子体发射光谱法测定酸溶性铜的程序。适用于各种纸张、纸板和纸浆。本标准规定了测定焚烧残渣酸溶部分的方法，即焚烧后获得的可溶于盐酸的点火残渣部分。如果残留物完全可溶，则按照ISO 778:2005中规定的程序获得的结果作为样品中铜的总量。测定极限通常为0.1 mg/kg纸、纸板或纸浆，但取决于所用的光谱仪。

ISO 778:2005 specifies the procedure for the determination of acid-soluble copper by atomic absorption spectrometry or by plasma emission spectrometry.It is applicable to all types of paper, board and pulp.It specifies a method to determine the acid-soluble part of the incineration residue, i.e. that part of the ignition residue obtained after incineration which is soluble in hydrochloric acid. If the residue is completely soluble, the result obtained by the procedure specified in ISO 778:2005 is taken as the total amount of copper in the sample. The limit of determination is normally 0,1 mg/kg of paper, board or pulp, but it depends on the spectrometer used.

标准预览图