BS ISO 23772:2023
Pulps. Kraft liquor. Determination of residual alkali using potentiometric titration
- 标准号
- BS ISO 23772:2023
- 发布
- 2023年
- 发布单位
- 英国标准学会
- 当前最新
- BS ISO 23772:2023
- 适用范围
- 1 Scope 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.