GB/T 21294-2024 PDF English
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| GB/T 21294-2024 | English | 280 |
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Testing methods of physical and chemical performance of garments
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| GB/T 21294-2014 | English | 315 |
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Testing method of the garments intrinsic quality
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| GB/T 21294-2007 | English | 439 |
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Testing method of the garments intrinsic quality
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GB/T 21294-2024: Testing methods of physical and chemical performance of garments---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT21294-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 61.020
CCS Y 75
Replacing GB/T 21294-2014
Testing Methods of Physical and Chemical Performance of
Garments
Issued on. MARCH 15, 2024
Implemented on. OCTOBER 1, 2024
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 6
2 Normative References... 6
3 Terms and Definitions... 11
4 Determination of Basic Properties... 11
5 Determination of Functional Performance... 20
6 Determination of Safety Performance... 22
1 Scope
This document describes the test methods for physical and chemical performance of garments.
This document is applicable to the inspection of physical and chemical performance technical
indicators of garment products produced with textile woven fabrics as the main fabric.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 250 Textiles - Tests for Color Fastness - Grey Scale for Assessing Change in Color
GB/T 251 Textiles - Tests for Color Fastness - Grey Scale for Assessing Staining
GB/T 2910 (all parts) Textiles - Quantitative Chemical Analysis
GB/T 2912.1 Textiles - Determination of Formaldehyde - Part 1.Free and Hydrolyzed
Formaldehyde (water extraction method)
GB/T 3917.1 Textiles - Tear Properties of Fabrics - Part 1.Determination of Tear Force Using
Ballistic Pendulum Method (Elmendorf)
GB/T 3917.2 Textiles - Tear Properties of Fabrics - Part 2.Determination of Tear Force of
Trouser-shaped Test Specimens (single tear method)
GB/T 3920 Textiles - Tests for Color Fastness - Color Fastness to Rubbing
GB/T 3921-2008 Textiles - Tests for Color Fastness - Color Fastness to Washing with Soap or
Soap and Soda
GB/T 3922 Textiles - Tests for Color Fastness - Color Fastness to Perspiration
GB/T 3923.1 Textiles - Tensile Properties of Fabrics - Part 1.Determination of Maximum Force
and Elongation at Maximum Force Using the Strip Method
GB/T 3923.2 Textiles - Tensile Properties of Fabrics - Part 2.Determination of Maximum Force
Using the Grab Method
GB/T 4615 Poly (vinyl chloride) - Determination of Residual Vinyl Chloride Monomer Content
- Gas Chromatographic Method
GB/T 4744-2013 Textiles - Testing and Evaluation for Water Resistance - Hydrostatic Pressure
Method
3 Terms and Definitions
The terms and definitions defined in GB/T 21295 are applicable to this document.
4 Determination of Basic Properties
4.1 Fiber Composition and Content
The fiber composition and content of the raw materials used in finished products shall be tested
in accordance with the methods described in FZ/T 01057 (all parts), GB/T 40271, GB/T 2910
(all parts), GB/T 16988, FZ/T 30003, FZ/T 01101 and FZ/T 01144, etc.
4.2 Color Fastness
4.2.1 Color fastness to washing with soap
The color fastness of finished products to washing with soap shall be tested in accordance with
the methods described in GB/T 3921-2008, and Method A (1) shall be adopted.
4.2.2 Color fastness to drycleaning
The color fastness of finished products to drycleaning shall be tested in accordance with the
method described in GB/T 5711.
4.2.13 Color fastness to phenolic yellowing
The color fastness of finished products to phenolic yellowing shall be tested in accordance with
the method described in GB/T 29778.
4.2.14 Color fastness to light yellowing
The color fastness of finished products to light yellowing shall be tested in accordance with the
method described in GB/T 30669-2014, and the irradiation time is 12 hours.
4.2.15 Color fastness to ozone
The color fastness of finished products to ozone shall be tested in accordance with the method
described in GB/T 11039.3-2005.In the test chamber, the temperature is (25 2) C and the
relative humidity does not exceed 65%. Carry out the test for 1 test cycle, which is
approximately 4.5 hours.
4.3 Durability
4.3.1 Degree of seam slippage
4.3.1.1 Sampling
4.3.2 Seam strength
4.3.2.1 Sampling
Sampling of the back crotch seam of pants. in accordance with the method described in GB/T
6529, conduct conditioning. Take 3 PCS (pieces) of finished products (or sewed samples), and
transversely cut a 50 mm 200 mm specimen from the arc of the back crotch seam of the
finished pants with the tangent point as the center of the specimen, as shown in Figure 2.If
necessary, reinforce both ends of the stitch area.
4.3.3 Pilling performance
4.3.3.1 Sampling
Cut 5 specimens in steps from the uncoated adhesive lining part of a finished product. In
accordance with the method described in GB/T 6529, conduct conditioning.
4.3.3.2 Test method
Pilling performance shall be tested in accordance with the method described in GB/T 4802.1-
2008, and Parameter D shall be used. Specifically speaking, for combed wool fabrics and
combed wool-like fabrics, use Parameter E; for carded wool fabrics, carded wool-like fabrics
and loose-structured fabrics, use Parameter F.
4.3.4 Tearing strength
The tearing strength of denim clothing and blouses shall be tested in accordance with the
method described in GB/T 3917.1.The tearing strength of other finished products shall be tested
in accordance with the method described in GB/T 3917.2.
4.3.5 Breaking strength
The breaking strength of denim clothing shall be tested in accordance with the method described
in GB/T 3923.2.The breaking strength of other finished products shall be tested in accordance
with the method described in GB/T 3923.1.
4.3.6 Bursting strength
The bursting strength of finished knitted fabrics shall be tested in accordance with the method
described in GB/T 19976-2005, using a spherical ejector pin with a diameter of (38 0.02) mm.
4.3.7 Peeled off strength of adhesive interlining
The peeled off strength of adhesive interlining of finished products shall be tested in accordance
with the method described in FZ/T 80007.1.
4.3.8 Abrasion resistance
The abrasion resistance of finished products shall be tested in accordance with the method
described in GB/T 21196.2.The test parts are 100 mm upward from the lower hem of the tops,
100 mm upward from the opening of the trousers, and 100 mm upward from the lower hem of
the skirts. The load is (595 7) g (with a nominal pressure of 9 kPa).
4.3.9 Snagging performance
The snagging performance of finished products shall be tested in accordance with the method
described in GB/T 11047.
4.3.10 Humidity and heat ageing resistance
The humidity and heat ageing resistance of finished products shall be tested in accordance with
the method described in GB/T 24135-2022, and Method C shall be adopted. The ageing time is
72 hours. After the test is completed, place it at room temperature for at least 1 hour. Under the
D65 standard light source, in accordance with GB/T 250, assess the color changes and
appearance changes of the specimen.
4.4 Washing Performance
4.4.1 Dimensional change rate
4.4.2 Spirality after laundering
The finished products shall be tested in accordance with the method described in GB/T 23319.3-
2010, and Method B shall be adopted, in which, washing and drying shall be carried out in
accordance with 4.4.1.1.During batch product inspection, randomly take 3 PCS of finished
products for testing and wash them once. Take the average value of the 3 PCS as the result.
4.4.3 Appearance after washing
5 Determination of Functional Performance
5.1 Moisture Permeability
For the moisture permeability of finished products, coated products shall be tested in
accordance with the method described in GB/T 12704.2-2009, Method A shall be used, and the
test conditions are group a); coatings and other products shall be tested in accordance with the
method described in GB/T 12704.1-2009, and the test conditions are group a).
5.2 Moisture Absorption and Quick-drying Performance
The moisture absorption and quick-drying performance of finished products shall be tested in
accordance with the method described in GB/T 21655.1.
5.3 Water Resistance
The test method for water resistance is as follows.
5.4 Warmth Retention Properties
The warmth retention properties of finished products shall be tested in accordance with the
method described in GB/T 35762.
5.5 Flame Retardant Properties
The flame retardant properties of finished products shall be tested in accordance with the
method described in GB/T 5455-2014, and Condition A shall be adopted.
5.6 Solar Ultraviolet Radiation Protective Properties
The solar ultraviolet radiation protective properties of finished products shall be tested in
accordance with the method described in GB/T 18830.
5.7 Oil Repellency
The oil repellency of finished products shall be tested in accordance with the method described
in GB/T 19977.
5.8 Soil Release
The soil release properties of finished products shall be tested in accordance with the method
described in FZ/T 01118.
5.9 Non-iron Performance
The test of the non-iron performance of finished products shall be carried out in accordance
with the stipulations of 4.4.1.1, add detergent once, and continuously wash for 5 cycles. After
continuous washing, adopt Program A for drying, and carry out the test in accordance with the
method described in GB/T 18863.
5.10 Anti-wrinkle Performance
The anti-wrinkle performance of finished products shall be tested in accordance with the
method described in GB/T 29257.
5.11 Antistatic Performance
The antistatic performance of finished products shall be tested in accordance with the method
described in GB/T 12703.3.
5.12 Prickle Resistance
The prickle resistance of finished products shall be tested in accordance with the method
described in FZ/T 01158.Respectively test in the warp and weft directions, and the larger
average value in the 2 directions is taken as the final result.
5.13 Anti-mosquitoes Properties
The anti-mosquitoes properties of finished products shall be tested in accordance with the
method described in GB/T 30126-2013, and the repellent tester method shall be adopted.
6 Determination of Safety Performance
6.1 Basic Safety Performance
6.1.1 Formaldehyde content
The formaldehyde content of finished products shall be tested in accordance with the method
described in GB/T 2912.1.
6.1.2 pH value
The pH value of finished products shall be tested in accordance with the method described in
GB/T 7573.
6.1.3 Decomposable carcinogenic aromatic amine dyes
The decomposable carcinogenic aromatic amine dyes of finished products shall be tested in
accordance with the method described in GB/T 17592.
6.1.4 Phthalates
The phthalates of finished products shall be tested in accordance with the method described in
GB/T 20388.
6.1.8 Tensile strength of accessories
The tensile strength of accessories of finished products shall be tested in accordance with the
method described in Appendix A of GB/T 22704-2019.Test 5 samples of each accessory, and
the single value of each sample shall reach the requirements. If there are less than 5 PCS of one
type of accessory, carry out the test based on the actual number of accessories.
6.1.9 Sharpness of accessories
The sharpness of accessories of finished products shall be tested in accordance with the method
described in GB/T 31702.
6.2 Other Safety Performance
6.2.1 Extractable heavy metals
The test methods are specified in Table 5.
6.2.2 Nickel release
The nickel release of finished products shall be tested in accordance with the method described
in GB/T 30158.
6.2.3 Flame retardant finishing agents
The brominated flame retardants of finished products shall be tested in accordance with the
method described in GB/T 24279.1.The phosphorus flame retardants shall be tested in
accordance with the method described in GB/T 24279.2.
6.2.4 Allergenic dyes
The allergenic dyes of finished products shall be tested in accordance with the method described
in GB/T 20383.
6.2.5 Carcinogenic dyes
The carcinogenic dyes of finished products shall be tested in accordance with the method
described in GB/T 20382.
6.2.6 Nonylphenol (NP) and nonylphenol oxyethylene ether (NPEO)
The nonylphenol (NP) and nonylphenol oxyethylene ether (NPEO) of finished products shall
be tested in accordance with the method described in GB/T 23322.
6.2.7 Short chain chlorinated paraffins
The short chain chlorinated paraffins of finished products shall be tested in accordance with the
method described in GB/T 40263.
6.2.8 Permethrin
The permethrin of finished products shall be tested in accordance with the method described in
GB/T 18412.4-2006, and the gas chromatography - mass selective detector (GC-MSD) shall be adopted.
6.2.10 Perfluorooctanoic acid (PFOA) and its salts
The perfluorooctanoic acid (PFOA) and its salts of finished products shall be tested in
accordance with the method described in GB/T 31126.
6.2.11 Chlorinated toluene
The chlorinated toluene of finished products shall be tested in accordance with the method
described in GB/T 20384.
6.2.12 Polycyclic aromatic hydrocarbons (PAH)
The polycyclic aromatic hydrocarbons of finished products shall be tested in accordance with
the method described in GB/T 28189.
6.2.13 Solvent residues
The solvent residues of finished products shall be tested in accordance with the method
described in GB/T 35446.
6.2.14 Vinyl chloride monomer (VCM)
The vinyl chloride monomer of finished products shall be tested in accordance with the method
described in GB/T 4615.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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