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GB/T 28004-2011 English PDF (GBT28004-2011)

GB/T 28004-2011 English PDF (GBT28004-2011)

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GB/T 28004-2011: Disposal diapers

This standard specifies the product classification, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage of paper diapers, diaper care and paper pads (care pads) for infants and adults. This standard is applicable to disposable paper diapers, diaper care and paper pads (care pads) made of outer covering materials, built-in absorbent layers, and leak-proof bottom films. This standard is not suitable for adult mild incontinence products, such as care towels.
GB/T 28004-2011
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 85.080
Y 39
Disposal diapers
?????????(???, ???)
ISSUED ON. SEPTEMBER 29, 2011
IMPLEMENTED ON. FEBRUARY 01, 2012
Issued by. General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Product classification ... 5
5 Technical requirements ... 5
6 Test methods ... 6
7 Inspection rules ... 8
8 Marking, packaging, transportation, storage... 8
Appendix A (Normative) Determination method for penetration performance 10 Appendix B (Normative) Determination method for pH ... 14
Disposal diapers
1 Scope
This standard specifies the product classification, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage of paper diapers, diaper care and paper pads (care pads) for infants and adults. This standard is applicable to disposable paper diapers, diaper care and paper pads (care pads) made of outer covering materials, built-in absorbent layers, and leak-proof bottom films.
This standard is not suitable for adult mild incontinence products, such as care towels.
2 Normative references
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard.
GB/T 462 Paper, board and pulp - Determination of moisture content of
analytical sample
GB/T 1914 Chemical analytical filter paper
GB/T 10739 Paper, board and pulps - Standard atmosphere for conditioning and testing
GB 15979 Hygienic standard for disposable sanitary products
GB/T 21331 Fluff pulp
GB/T 22905 Superabsorbent polymer for diaper
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Topsheet run-off
Delivery moisture, ??? % 10.0
a Products with special functions (such as training for toilets, etc.) do not subject to rewet assessment. 5.2 The paper diapers, diaper care and paper pads (care pads) shall be clean, no color fading, intact in leak-proof bottom film, no hard blocks, no damage, etc., soft to the touch, firm sealing; the elastic band is bonded evenly, the fixation stick position complies with the use requirements; during the penetration performance test, the inbuilt absorption layer material shall not leak out at a large amount.
5.3 The sanitary indicators of paper diapers, diaper care and paper pads (care pads) shall be in accordance with the provisions of GB 15979.
5.4 Raw materials used in paper diapers, diaper care and paper pads (care pads). fluff pulp shall meet the requirements of GB/T 21331, and high-absorbent polymer shall meet the requirements of GB/T 22905. Recycled materials shall not be used to produce paper diapers, diaper care and paper pads (care pads). 6 Test methods
6.1 Preparation of specimen
The specimen shall be treated before test at the temperature and humidity conditions in accordance with GB/T 10739 for at least 2 h, and be tested under this conditions of temperature and humidity.
6.2 Full length, full width, strip mass deviation
6.2.1 Full length deviation
Use the ruler to measure the full length of the original specimen length (measured from the longest part of the specimen), and the number of each specimen of the same specification is 6, accurate to 1 mm, respectively calculate the percentage of the difference between the maximum, minimum width of the 6 specimens and the average value of the 6 specimens to its average value, which is used as the determination result of the full length deviation of this type of specimen, accurate to 1%.
6.2.2 Full width deviation
Use the ruler to measure the full width of the original specimen width (measured from the narrowest part of the specimen), and the number of each specimen of the same specification is 6, accurate to 1 mm, respectively calculate the percentage of the difference between the maximum, minimum width of the 6 specimens and the average value of the 6 specimens to its average value, which is used as the determination result of the full width deviation of this type 7 Inspection rules
7.1 Inspection-lot provisions
The same category of products made by same raw materials, same processes, and same specifications in the quantity of one delivery are used as a batch; the unit of the submitted inspection specimen is piece; the number of each batch is not more than 5000 pieces.
7.2 Sampling methods
From a batch of products, randomly take 3 sets of products, take 3 packages (10 pieces per package) from each set, and a total of 9 packages of samples are taken. In which, two packages of them are used for microbiological test; four packages of them for microbiological retest; and three packages of them for other performance tests.
7.3 Decision rules
When the inspection product meets all the technical requirements of clause 5 of this standard, it is judged to be qualified; when any of these inspection items fails, it is judged to be unqualified.
7.4 Quality assurance
The product that has passed the inspection and is attached with quality certification mark can be exit-factory.
8 Marking, packaging, transportation, storage
8.1 Product sales marking and packaging
8.1.1 The following contents shall be indicated on the product sales package. a) Product name, implemented standard number, trademark;
b) Name, address and contact information of enterprise;
c) Product specifications, quantity of contents;
d) Infant products shall be marked with the applicable weight; adult products shall be marked with dimension or waist circumference applied;
e) Date of manufacture and shelf life or production lot number and valid date of use;
f) Main raw materials;
A.1.1.8 Standard clamp. ??100 mm, mass is (1.2 ?? 0.002) kg (can produce a pressure of 1.5 kPa).
A.1.1.9 Stopwatch. Accuracy is 0.01 s.
A.1.2 Test solution
A.1.2.1 0.9% sodium chloride solution. add 9.0 g of sodium chloride into 1000 mL of distilled water to prepare this solution.
A.2 Determination of topsheet run-off
A.2.1 Test procedure
A.2.1.1 Put the tester (A.1.1.2) in the horizontal position first, adjust the angle between the upper panel and the lower panel to (30 ?? 2)??, then adjust the lower opening of the funnel (A.1.1.3), such that the projection of the center point is (200 ?? 2) mm from the lower edge of the tester oblique panel, and the lower opening of the funnel faces the operator. Pour the appropriate amount of test solution (A.1.2) into the funnel, allow the funnel to wet, use the test solution to rinse the funnel twice.
A.2.1.2 Take a specimen, cut off the elastic bands on both sides (including the three-dimensional retaining edge), then place the specimen on the inclined panel of the tester flatly, to make the use surface face upwards and the rear part of the specimen rest above the inclined panel, respectively measure 100 mm from both ends to the center point of the in-built absorbent layer of the specimen as the test area, fold the extended part towards the upper part and bottom part of the inclined panel, then use four stainless steel clips (A.1.1.5) to fix the specimen, such that the stainless steel clip will not hinder the solution flow, as shown in Figure A.1. Adjust the height of the funnel so that the lowermost end of the lower opening is 5 mm ~ 10 mm away from the surface of the specimen. Then place a beaker (A.1.1.6) under the tester to collect the solution that has flowed through the specimen.
A.2.1.3 In accordance with the provisions of Table A.1, use the measuring cylinder (A.1.1.4) to accurately measure the test solution, pour it into the adjusted funnel. Then quickly open the funnel opening to the maximum, let the solution flow freely to the surface of the specimen, and flow down the slope into the beaker. After the solution is empty, close the funnel opening and wipe the lower opening of the funnel to empty the solution. Use the measuring cylinder to measure the solution in the beaker (quantitative to 1 mL) as a test result. If the test solution flows away from the side of the specimen, the specimen is discarded and another piece is taken for test again.

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