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GB/T 21294-2024: Testing methods of physical and chemical performance of garments Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 21294: Historical versions
Similar standardsGB/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/GBT21294-2024GB 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 ContentsForeword... 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... 221 ScopeThis 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 ReferencesThe 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 Method3 Terms and DefinitionsThe terms and definitions defined in GB/T 21295 are applicable to this document.4 Determination of Basic Properties4.1 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 washing5 Determination of Functional Performance5.1 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 Performance6.1 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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