What is ISO 171903 about?
ISO 17190 discusses polyacrylate superabsorbent powders for urine-absorbing aids for incontinence. ISO 17190-3 outlines a test method for measuring particle size distributions up to 850 μ of cross-linked polyacrylate superabsorbent powders. ISO 17190-3 applies only to measurements made where sieve shaking is used for the separation. Tapping equipment is not expected to deliver the same results.
ISO 17190-3 applies to powdered polymeric superabsorbent materials that are free flowing under the specified test conditions.
Who is ISO 17190-3 for?
ISO 17190-3 on the determination of the particle size distribution in Polyacrylate superabsorbent powders is useful for:
- Manufacturers of polyacrylate superabsorbent powders
- Test centers for polyacrylate superabsorbent powders
- Regulatory authorities
Why should you use ISO 17190-3?
Polyacrylate superabsorbent powders absorb water or urine by a process called osmosis. When the polymer is placed in urine, there is a tendency for the atoms contained in the powder to distribute equally between the network and water. Extractables are the sum of the soluble acid and salt groups of monomeric, oligomeric, and polymeric carboxylates extracted from the superabsorbent polymer. The determination of particle size is vital to ensuring product bioavailability, efficacy, and shelf life.
ISO 17190-3 guidelines provides the requirements for Water, Sodium hydroxide solution, Hydrochloric acid solution, Sodium chloride solution, Standard buffer solutions, sampling, procedure, calculations, reports, precision for the determination of the particle size distribution by sieve fractionation in polyacrylate powder. This helps in conducting proper assessment and provides reliable results for the determination of the particle size distribution in polyacrylate superabsorbent powder that can be reproduced in any laboratory.
What’s changed since the last update?
BS ISO 17190-3:2020 supersedes ISO 17190-3:2001, which has been withdrawn. BS ISO 17190-3:2001 has a full-text review and new laboratory analysis with a statistical evaluation with respect to ISO 17190-3:2001.