标准摘要
[中文适用范围]： 该文件描述了测定干物质含量高达 40% 的牛皮纸黑液中残留碱含量的程序。 该方法基于盐酸电位滴定，适用于初始 pH ≥ 11.0 的黑液样品。 测定下限为 0.1 g/l 的当量。 氢氧化钠。 [外文原描述]： This document describes a procedure for determining the content of residual alkali in Kraft black liquors having a dry matter content up to 40 %. The method is based on a potentiometric titration with hydrochloric acid and is intended for black liquor samples with an initial pH ≥ 11,0. The lower limit of determination is 0,1 g/l of eq. NaOH.
英文名称Pulps — Kraft liquor — Determination of residual alkali using potentiometric titration