GB/T 22875-2018 in English

GB/T 22875—2018 Standard Overview

GB/T 22875—2018 "Superabsorbent Resins for Diapers and Sanitary Napkins" was issued in 2018, integrating and replacing the previous GB/T22875-2008 and GB/T22905-2008 standards. This standard mainly specifies the product classification, technical indicators, test methods and inspection rules of polyacrylate superabsorbent resins.

Product Classification and Use

According to GB/T 22875-2018, super absorbent resin (SAP) is divided into the following categories according to its use:

• Super absorbent resin for baby diapers (sheets, pads)
• Super absorbent resin for adult diapers (sheets, pads)
• Super absorbent resin for sanitary napkins (pads)

Technical Indicator Comparison Table

Interpretation of main technical indicators

GB/T 22875-2018 puts forward strict requirements on the technical indicators of superabsorbent resin, including:

• Residual monomer content: ensure product safety and environmental protection.
• Volatile content: control impurity levels and improve product quality.
• pH range: ensure compatibility with human skin.

Background analysis of standard revision

GB/T 22875-2018 is an integration of the original two standards. The main revisions include:

• The standard name and scope of application are unified.
• Product classification and new technical indicators (such as yellowing value, extractable content, etc.) are added.
• The test method has been optimized to improve the detection accuracy.

Implementation suggestions

To ensure the effective implementation of the standard, it is recommended that:

1. Enterprises should establish internal quality control systems and strictly follow the standards for production and inspection.
2. Testing agencies should be equipped with advanced instruments and equipment (such as high-performance liquid chromatographs, densitometers, etc.) to ensure test accuracy.
3. Strengthen employee training, especially the study of the newly revised technical indicators and test methods.