ICS 85.080
CCS Y 39
National Standard of the People’s Republic of China
GB/T 8939-2025
Replaces GB/T 8939-2018
Sanitary absorbent pads (panty liners)
卫生巾(护垫)
(English translation)
Issue date: 2025-12-31 Implementation date: 2027-01-01
Issued by the State Administration for Market Regulation of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword I
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Product classification 2
5 Requirements 2
6 Test methods 4
7 Inspection rules 6
8 Marking, packaging, transportation and storage 8
9 Implementation of this standard 9
Annex A (Normative) Determination of absorption speed and rewet 10
Annex B (Normative) Preparation and physical property requirements of standard synthetic test solution 12
Annex C (Normative) Determination of pH 14
Annex D (Normative) Determination of adhesive peel strength 15
Annex E (Normative) Determination of migratable fluorescent substance 18
Annex F (Normative) List of carcinogenic aromatic amines 20
Sanitary absorbent pads (panty liners)
1 Scope
This document specifies the requirements for raw materials, technical indicators, sanitary and sensory quality of sanitary absorbent pads (panty liners), and describes corresponding test methods, specifies the inspection rules, marking, packaging, transportation and storage, defines the terms and definitions, and gives the product classification to facilitate specification of techniques.
This document applies to the production, inspection, and sale of sanitary absorbent pads and panty liners for women, which are composed of a top sheet, an absorbent core (containing fluff pulp, cotton fibers, or super-absorbent polymer), and a leak-proof back sheet, and are formed using specialized machinery.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 462 Paper, board and pulps - Determination of moisture content of analytical sample
GB/T 6682 Water for analytical laboratory use - Specification and test methods
GB/T 10739 Paper, board and pulps - Standard atmosphere for conditioning and testing
GB 15979 Hygienic requirements for disposable sanitary products
GB/T 17592 Textiles - Determination of the banned azo colourants
GB/T 17829 Polyethoxylated fatty alcohols
GB/T 21331 Fluff pulp
GB/T 22731 Fragrance compound
GB/T 22804 Pulp, paper and board - Determination of mercury content
GB/T 22875 Super-absorbent polymer for sanitary towel and diapers
GB/T 23344 Textiles - Determination of 4-aminoazobenzene
GB/T 24218.6 Textiles - Test methods for nonwovens - Part 6: Absorption
GB/T 24292 Sanitary product - Air-laid
GB/T 24991 Paper, board and pulps - Determination of lead content - Graphite furnace atomic absorption spectrometry method
GB/T 24992 Paper, board and pulps - Determination of arsenic
GB/T 24997 Paper, board and pulps - Determination of cadmium content - Atomic absorption spectrometric method
GB/T 27731 Release paper for sanitary products
GB/T 30133 Topsheet for disposal sanitary products
GB/T 34448 Tissue paper and disposable products - Determination of formaldehyde
GB/T 37860 Paper, board and paper products - Determination of phthalates
GB 38598 General requirement for label and instruction book of disinfection products
QB/T 4508 Absorption tissue paper
Safety and Technical Standards for Cosmetics (2025 edition)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
absorption speed
time required for the sample to absorb a certain amount of standard synthetic test solution
3.2
rewet
mass of test solution that returns to the surface layer after the sample has absorbed a specified amount of standard synthetic test solution, under certain pressure and time conditions
3.3
absorption ratio
multiple of the mass of standard synthetic test solution absorbed by the sample within a specified time compared to the sample’s own mass
4 Product classification
Sanitary absorbent pads (panty liners) are classified into sanitary absorbent pads and panty liners based on product performance and intended use.
5 Requirements
5.1 Raw materials
5.1.1 The raw materials of sanitary absorbent pads (panty liners) shall not include discarded or used materials, and their sanitary requirements shall comply with the relevant provisions on raw materials in GB 15979.
5.1.2 For the raw materials used for sanitary absorbent pads (panty liners): the fluff pulp shall meet the requirements of GB/T 21331, the super-absorbent polymer shall meet the requirements of GB/T 22875 the release paper shall meet the requirements of GB/T 27731, the absorption tissue paper shall meet the requirements of QB/T 4508, the air-laid shall meet the requirements of GB/T 2429, the topsheet hall meet the requirements of GB/T 30133, and the fragrance compound shall meet the requirements of GB/ 22731.
5.2 Technical indicators
5.2.1 Technical indicators for sanitary absorbent pads
The technical indicators for sanitary absorbent pads shall meet those specified in Table 1.
5.2.2 Technical indicators for panty liners
The technical indicators for panty liners shall meet those specified in Table 2.
5.3 Sanitary requirements
The sanitary requirements of sanitary absorbent pads (panty liners) shall comply with GB 15979.
5.4 Sensory quality
5.4.1 The appearance of sanitary absorbent pads (panty liners) shall be clean, free from contaminants, damage, abnormal odors, and foreign matters.
5.4.2 The release paper on sanitary absorbent pads (panty liners) shall not fall off by itself, and can be torn off naturally and completely.
5.5 Requirements for use
5.5.1 The sealing of sanitary absorbent pads (panty liners) shall be secure and shall not rupture during normal use.
5.5 The sanitary absorbent pads (panty liners) shall have no displacement during normal use, and shall not damage the underwear or leave obvious residue when it is removed from the underwear.
6 Test methods
6.1 Specimen treatment and test conditions
For the determination of sheet mass deviation, absorption speed, rewet amount, absorption ratio and adhesive peel strength, the specimens shall be conditioned under the standard atmospheric conditions specified in GB/T 10739 for at least 4 h, and the tests shall be conducted under the same conditions.
6.2 Full length deviation
Remove the release paper from the specimen, lay it flat on a level table surface. Measure Use the full length of the specimen (measured from the longest point of the specimen, as shown in Figure 1) with a ruler to an accuracy of 1 mm. For each specification, measure 6 specimens taken from at least two different sales packages, with at least two specimens taken from each package. Take the average value of 6 specimens, calculate the full length deviation according to Formula (1), and round the result to 0.1%.
(1)
where,
S1 - full length deviation, %;
Lavg - average of full length, mm;
L - nominal value of full length, mm.
Note: If the sales package is a single-piece package, test 6 packages.
Figure 1 Schematic diagram of full length measurement of sanitary absorbent pads (panty liners)
Contents
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification
5 Requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transportation and storage
9 Implementation of this standard
Annex A (Normative) Determination of absorption speed and rewet
Annex B (Normative) Preparation and physical property requirements of standard synthetic test solution
Annex C (Normative) Determination of pH
Annex D (Normative) Determination of adhesive peel strength
Annex E (Normative) Determination of migratable fluorescent substance
Annex F (Normative) List of carcinogenic aromatic amines
