ISO 23777:2023
Pulps — Kraft liquor — Determination of hydrosulphide ion concentration using potentiometric titration

Standard No.

ISO 23777:2023

Release Date

2023

Published By

International Organization for Standardization (ISO)

Latest

ISO 23777:2023

Scope

This document describes a procedure for the determination of sulphide, i.e. the hydrosulphide ion concentration, in white, oxidized white and green liquors, as well as in black liquor having a dry matter content up to 40 %. The determination also includes the sulphide part of any polysulphide present in the solution.

ISO 23777:2023 history

• 2023 ISO 23777:2023 Pulps — Kraft liquor — Determination of hydrosulphide ion concentration using potentiometric titration