ISO 17190-2-2021 PDF

Full title and description

ISO 17190-2:2021 — Urine‑absorbing aids for incontinence — Polyacrylate superabsorbent powders — Part 2: Test method for determination of the amount of residual acrylate monomers. This document specifies a laboratory test procedure to determine the sum of residual monomeric sodium acrylate and acrylic acid present in polyacrylate superabsorbent powders, reported as acrylic acid.

Abstract

This part of ISO 17190 provides a quantitative test method for extracting and measuring residual acrylate monomers in polyacrylate (superabsorbent) powders used in urine‑absorbing aids for incontinence. The result is expressed as the total amount of residual sodium acrylate and acrylic acid (calculated and reported as acrylic acid). The procedure is intended for material (powder) testing rather than final finished products.

General information

• Status: Published (current edition).
• Publication date: 2021‑02 (edition 2, published February 2021).
• Publisher: International Organization for Standardization (ISO), ISO/TC 173/SC 3.
• ICS / categories: 11.180.20 (Aids for incontinence and ostomy).
• Edition / version: Edition 2 (2021).
• Number of pages: 10 (official ISO listing); some national/adopted copies or bibliographic sellers list alternative page counts for national publications, but the ISO record shows 10 pages.

Scope

The standard applies to granular polyacrylate superabsorbent powders used as the absorbent polymer in urine‑absorbing aids for incontinence. It specifies the extraction and analytical determination of residual acrylate monomers (sodium acrylate and acrylic acid), and requires reporting the combined result as acrylic acid. The method is intended for material quality control and characterization, not for testing finished consumer products or absorbent composites.

Key topics and requirements

• Principle: extraction of residual monomers from the polymer powder followed by chromatographic quantification (HPLC is the analytical technique specified in equivalent/adopted national methods), with results expressed as total acrylic acid equivalents.
• Sample preparation and conditioning: representative sampling, conditioning to specified atmosphere, homogenization and subsampling procedures to ensure repeatability.
• Reagents and calibration: defined reagent grades, preparation of calibration standards and system suitability checks for the chromatographic method.
• Analytical performance and reporting: limits of quantification/detection, calibration curve requirements, calculation and expression of results as mg/g or ppm as acrylic acid, and statements on uncertainty and repeatability per the method.
• Applicability and limitations: applies to polyacrylate superabsorbent powders (not finished hygiene products); patent or proprietary considerations in certain extraction/analysis steps may apply and should be considered by laboratories.

Typical use and users

Typical users are raw‑material manufacturers (superabsorbent polymer producers), quality control and analytical laboratories, product developers for hygiene/incontinence aids, regulatory agencies and conformity assessment bodies concerned with material safety and specification compliance. Laboratories use this method for batch release testing, supplier qualification and R&D characterization.

Related standards

ISO 17190 is a multipart series addressing polyacrylate superabsorbent powders and test methods for materials used in urine‑absorbing aids. Relevant parts include ISO 17190‑1:2020 (test method for determination of pH) and other parts covering particle size, moisture, absorption performance, etc.; earlier 2001 editions of several parts were superseded by the 2020–2021 revisions. Users commonly reference EDANA/WSP and national adoptions (for example GB/T equivalents) for complementary procedures.

Keywords

ISO 17190‑2, urine‑absorbing aids, superabsorbent polymer, polyacrylate, residual monomers, acrylic acid, sodium acrylate, HPLC, extraction, material testing, quality control.

FAQ

Q: What is this standard?

A: ISO 17190‑2:2021 is an international standard that specifies a laboratory test method to determine the amount of residual acrylate monomers (sodium acrylate and acrylic acid) in polyacrylate superabsorbent powders used in urine‑absorbing aids.

Q: What does it cover?

A: It covers sampling considerations for powder materials, extraction of residual monomers, analytical determination (chromatographic measurement as used in equivalent national methods), calibration and reporting of results expressed as acrylic acid, and associated quality/precision requirements for material testing. It is aimed at testing the polymer powder rather than finished absorbent articles.

Q: Who typically uses it?

A: Polymer manufacturers, material QC/analytical laboratories, diaper and incontinence product developers, and regulatory/conformity assessment laboratories use the method for material characterization, supplier control and safety/specification checks.

Q: Is it current or superseded?

A: ISO 17190‑2:2021 is the current (second) edition published in 2021 and it supersedes the 2001 edition (ISO 17190‑2:2001), which was withdrawn. Users should verify the standard’s status with ISO periodically for any amendments or systematic review updates.

Q: Is it part of a series?

A: Yes — ISO 17190 is a multipart series addressing test methods for polyacrylate superabsorbent powders for urine‑absorbing aids (for example, ISO 17190‑1:2020 for pH measurement, and other parts covering particle size, moisture content and absorption properties).

Q: What are the key keywords?

A: Residual monomers, acrylic acid, sodium acrylate, polyacrylate, superabsorbent powder, HPLC, extraction, urine‑absorbing aids, ISO 17190‑2:2021.