ISO 9198:2020
Paper, board and pulp — Determination of water-soluble sulfates

Standard No.

ISO 9198:2020

Release Date

2020

Published By

International Organization for Standardization (ISO)

Latest

ISO 9198:2020

Scope

This document specifies a method for the determination of water-soluble sulfates in all types of pulp, paper and board. The lower limit of the determination is 20 mg of sulfate ion per kilogram of dry sample.

ISO 9198:2020 Referenced Document

• ISO 186 Paper and board - Sampling to determine average quality
• ISO 287 Paper and board - Determination of moisture content of a lot - Oven-drying method
• ISO 638 Paper, board and pulps - Determination of dry matter content - Oven-drying method
• ISO 7213 Pulps — Sampling for testing*， 2021-12-07 Update

ISO 9198:2020 history

• 2020 ISO 9198:2020 Paper, board and pulp — Determination of water-soluble sulfates
• 2001 ISO 9198:2001 Paper, board and pulp - Determination of water-soluble sulfates
• 1989 ISO 9198:1989 Paper, board and pulps; determination of water-soluble sulfates; titrimetric method