GB/T 28004.1-2021 English PDF (GBT28004.1-2021)

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GB/T 28004.1-2021: Disposable diapers -- Part 1: Disposable diapers for baby
GB/T 28004.1-2021
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 85.080
Y 39
Partially replacing GB/T 28004-2011
Disposable diapers - Part 1: Disposable diapers for baby
ISSUED ON: APRIL 13, 2021
IMPLEMENTED ON: MAY 01, 2022
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword ... 3 
Introduction ... 5 
1 Scope ... 6 
2 Normative references ... 6 
3 Terms and definitions... 7 
4 Product classification ... 7 
5 Technical requirements ... 8 
6 Raw material requirements ... 9 
7 Test methods ... 9 
8 Inspection rules ... 13 
9 Marking, packaging, transportation, storage ... 15 
Annex A (Normative) Determination method of penetration performance ... 17 
Annex B (Normative) Determination of pH value ... 24 
Annex C (Normative) Determination of foreign material ... 26 
Annex D (Normative) Determination of migratory fluorescent substances ... 29 
Annex E (Normative) List of decomposable carcinogenic aromatic amine dyes ... 31 
Bibliography... 32 
Disposable diapers - Part 1: Disposable diapers for baby
1 Scope
This Part of GB/T 28004 specifies product classification, technical requirements, test
methods, inspection rules and markings, packaging, transportation and storage of baby
diapers, diaper mats, diaper pads (nursing pads).
This Part applies to disposable baby diapers, diaper mats, diaper pads (nursing pads)
made of outer covering material, built-in absorbent layer, leak-proof backing film. This
Part also applies to infant swimming diapers, low-birth-weight infant diapers and infant
diapers with special functions (such as toilet training).
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 462, Paper and board - Determination of moisture content
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 standard for disposable sanitary products
GB/T 17592, Textiles - Determination of the banned azo colorants
GB/T 21331, Fluff pulp
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 33280-2016, Specification and size of disposal diapers
GB/T 34448-2017, Tissue paper and disposable products - Determination of
formaldehyde
GB/T 36420, Tissue paper and products - Safety assessment management system of
chemicals and materials
GB/T 37859, Paper, board and paper products - Determination of acrylamide
GB/T 37860, Paper, board and paper products - Determination of phthalates
QB/T 4508, Hygienic products mount
Safety Technical Specifications for Cosmetics (Edition 2015) (Announcement No.
268 of 2015 of China Food and Drug Administration)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 absorption speed
the time required for a specimen to absorb a certain amount of test solution
3.2 rewet
after the specimen absorbs a certain amount of test solution, under a certain pressure,
the mass of the test solution returned to the surface layer
3.3 leakage
after the specimen absorbs a certain amount of the test solution, under a certain pressure,
the mass of the test solution that passes through the anti-leakage bottom film
3.4 top sheet SAP residual
super absorbent resin attached to the surface of the specimen
3.5 foreign material
substances other than the normal composition and form of baby diapers, diaper mats,
diaper pads (nursing pads)
4 Product classification
4.1 According to product structure, it is divided into baby diapers, diaper mats and
diaper pads (nursing pads).
4.2 Baby diapers are divided into waist type diapers and pants type diapers according
to wearing methods.
packs of samples. Take 1 specimen from each pack of samples. Cut the edge elastic
band of the specimen. Respectively take 2g of test material from the middle of the two
specimens. Cut the test material into pieces. After mixing evenly, the specimens are
divided into two groups for parallel testing. The absolute error between the two
measured values shall not exceed 1.0%. Take the arithmetic mean to represent the
measurement result. Round to one decimal place.
NOTE: When the specimen is put into the container, avoid the leak-proof bottom film contacting
the container wall to prevent adhesion after high temperature.
7.9 Heavy metal content
The content of heavy metals lead, arsenic, cadmium and mercury shall be determined
according to 1.6 in Chapter 4 of "Safety Technical Specifications for Cosmetics"
(Edition 2015). Use microwave digestion method for sample processing.
7.10 Migratory fluorescent substances
The migratory fluorescent substances are determined according to Annex D.
7.11 Acrylamide content
Acrylamide content is determined according to GB/T 37859.
7.12 Formaldehyde content
The formaldehyde content is determined by high performance liquid chromatography
in GB/T 34448-2017.
7.13 Phthalates content
The phthalate content is determined according to GB/T 37860.
7.14 Decomposable carcinogenic aromatic amine dyes
Decomposable carcinogenic aromatic amine dyes are determined according to GB/T
17592 and GB/T 23344. See Annex E for a list of decomposable carcinogenic aromatic
amine dyes. When testing, try to take samples from the parts with darker printing or
dyeing.
NOTE: First test according to GB/T 17592. When aniline and/or 1,4-phenylenediamine are detected,
then test according to GB/T 23344.
7.15 Hygiene indicators
Hygiene indicators are determined according to GB 15979.
7.16 Applicable maximum waist circumference of diapers
8.6.2 Type inspection
When the inspected product meets all the technical requirements for type inspection in
Table 3, the batch will be judged as conforming. When any one of these inspection
items fails, the batch will be judged to be nonconforming.
8.7 Quality assurance
The product can only leave the factory after passing the inspection and attaching the
quality mark.
9 Marking, packaging, transportation, storage
9.1 Product sales identification and packaging
9.1.1 The following contents shall be indicated on the product sales package:
a) Product name (including words such as baby diapers, diaper mats and diaper pads
or baby nursing pads);
b) Reference to this Part;
c) Name of main raw material;
d) Baby diapers and diaper mats shall be marked with product specifications. Baby
diaper pads shall be marked with length and width dimensions;
e) Baby diapers and diaper mats shall be marked with the applicable weight;
f) Infant swimming diapers and infant training diapers shall be marked with the
purpose of use (swimming trunks shall contain the word "swimming", training
pants shall be marked with toilet training or similar terms);
g) Product conformity mark;
h) Other marked contents shall comply with the requirements of relevant national
laws, regulations and standards.
9.1.2 The sales packaging of the product sha...