Water Absorption Tester (WAT)

Automatic Water Absorption Tester (ISO 12625-8)

Tissue paper is a material with very specific physical properties that make it ideal for use in hygiene and household products. Among these properties, water absorption capacity stands out as one of the most critical, as it determines the paper’s effectiveness in real-life usage.

To measure this property in a standardised way, the international standard ISO 12625-8 defines the basket-immersion test method, determining two key parameters: water absorption time (in seconds) — how long it takes for the paper to become completely wetted — and water absorption capacity (g/g), the amount of water absorbed per gram of sample.

To help customers carry out this measurement with accuracy, repeatability and automation, the WAT model was developed, specifically designed to comply with ISO 12625-8 requirements.

Key Features

• Fully automatic operation with touchscreen interface.
• Complies with ISO 12625-8.
• Metal basket with a mass of 3.0 ± 0.1g.
• Standardised immersion (30 ± 1 seconds in deionised water) and draining (basket tilted at 30 ± 3° for 60 ± 1 seconds).
• Automatically records wet sample weight to calculate absorption.

Applications

Essential for tissue paper manufacturers needing repeatable, accurate water absorption testing to ensure products perform effectively in hygiene and household applications.

Talk to the Techotrix team to find out whether the WAT is the right water absorption tester for your tissue paper testing.